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Water treatment sits at the heart of modern manufacturing.

Whether it’s used in steam systems, cleaning, cooling, or product formulation, water quality influences everything from equipment lifespan to product consistency. Two technologies often considered by industrial water managers are demineralisation and reverse osmosis (RO). Each has its strengths.

Understanding how they differ can help you make the best long-term decision for your process.

In this blog, we unpack:

How each technology works
Difference in water quality and efficiency
Cost implications for operations
Maintenance needs and lifecycle considerations
Real‑world guidance for selecting the right solution

How Demineralisation and Reverse Osmosis Work

Demineralisation (Ion Exchange)

Demineralisation uses special resins to remove dissolved salts from water. Cation resins exchange positive ions like calcium and magnesium for hydrogen ions. Anion resins then swap negative ions like sulphates and chlorides for hydroxide ions. That pair forms pure water.

There are two main systems:

Co‑current flow where regeneration chemicals flow in the same direction as water. This method is simple and cost effective but provides less purity
Counter‑current flow where regeneration chemicals flow opposite to the process water flow. That gives higher purity, greater chemical efficiency, and lower running costs for high-quality output

Reverse Osmosis (RO)

RO pushes water through a semi‑permeable membrane at high pressure. The membrane allows water molecules to pass but rejects dissolved salts, organic matter, and many contaminants. Most RO systems provide around 90–99% salt rejection, depending on feedwater quality and pressure.

RO is often paired with media filters or softeners to protect the membranes and ensure consistency.

What Is Reverse Osmosis?

Reverse osmosis is a water purification process that removes dissolved salts, minerals, and other contaminants using a semi-permeable membrane. It works by applying pressure to water on one side of the membrane, forcing the pure water molecules through while leaving unwanted substances behind.

Unlike conventional filtration, which relies on pore size to block contaminants, RO can remove particles as small as 0.0001 microns. This includes:

Dissolved salts and minerals (e.g. calcium, sodium, chlorides)
Heavy metals (e.g. lead, arsenic)
Organic compounds and bacteria
Silica and nitrates

This makes RO particularly well-suited for industries that require ultra-pure or high-quality water as part of their operations.

Why You Can Trust Us

AllWater Technologies optimises demineralisation and RO systems for UK manufacturers. Our engineers design fit-for-purpose water treatment systems that meet performance, durability, and regulatory standards.

Key Differences in Performance and Application

Water Quality Achievable

Demineralisation produces extremely pure water with low conductivity. Counter‑current systems can achieve resistivity of 2–10 megohm‑cm, depending on maintenance. That works well for cleaning, boiler feed, and general industrial processes.

RO, when used properly, yields water with low total dissolved solids. But its purity varies. Post‑treatment like deionisation or UV polishing is often needed for ultrapure applications such as pharmaceutical or semiconductor manufacturing.

Feedwater Variability

Demineralisation is highly dependent on feedwater composition. High hardness or high TDS water requires frequent regeneration. That increases consumption of chemicals and downtime.

RO handles a wider range of feedwater qualities. It removes suspended solids, organics, and dissolved salts in a single process. Its only limitation is pressure and pretreatment requirements to protect the membrane.

Process Efficiency

In low flow or batch applications, demineralisation offers quick turnaround. Resin systems deliver high purity instantly. RO systems require time to ramp up pressure.

However, RO is more efficient in high-flow or continuous-demand environments. It uses no chemical regenerants. Demineralisation needs regular acid and caustic to flush and regenerate.

Cost Considerations: CAPEX and OPEX

Capital Costs (CAPEX)

Demineralisation systems generally cost less to install for small or intermittent demands. The purchase cost is lower because resins and tanks are simpler than high-pressure membranes.

RO systems require high-pressure pumps, robust plumbing, and precise controls. Initial investment is higher. That said, modular RO systems are now available at lower cost for small to medium applications.

Operating Costs (OPEX)

Demineralisation has predictable chemical costs, but those chemicals can be expensive. Resin replacement or re-bedding adds to long-term costs.

RO eliminates chemical usage for regeneration. Energy costs are the main operating expense. New RO membranes and energy-efficient designs help reduce that over time.

When you evaluate total cost of ownership for a high-output system, RO often proves more economical.

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Demineralisation

Resin requires regular validation of water quality. Resin beds need regeneration, requiring downtime and chemical handling procedures. Resin replacement occurs every 1–5 years, depending on the feedwater and usage.

Reverse Osmosis

RO membranes have a stable operating period. But they require routine cleaning, monitoring, and occasional replacement. Pre‑treatment is key to prevent fouling and scaling. Operators need to monitor pressure, flow, conductivity, and make adjustments to recovery rate or cleaning cycles.

RO suits companies focused on sustainability. Reduced chemical use lowers disposal risk. Reject water can be recycled or reused in some processes, cutting wastewater volume.

Demineralisation generates chemical by‑products during regeneration. Handling acidic or alkaline waste becomes a concern. That increases disposal costs and complication for compliance.

Here are scenarios to guide your selection:

Industrial Need	Recommended System	Why It Works Better
Routine boiler feed or process rinses	Demineralisation	Simple, cost effective for consistent low‑scale needs
Batch processes with infrequent usage	Demineralisation	Quick start, minimal setup requirements
High‑purity demand (pharma, electronics)	RO + Polishing	Higher purity, stable quality
Variable feedwater sources	Reverse Osmosis	Strong at removing wide range of impurities
High‑flow, continuous water supply	Reverse Osmosis	Efficient scaling, lower running costs long‑term
Sustainability goals	Reverse Osmosis	Lower chemical usage, potential for water reuse

Start with Pretreatment

Even if you choose demineralisation or RO, pre‑treatment matters. Hard water, chlorine, or particulates degrade performance. Including cartridge filters, softeners, or multimedia units can reduce resin and membrane wear.

Monitor Performance Closely

Track return conductivity, pressure, and flow rate. Set up alarms for signal drift. Adopting simple SCADA systems helps you stay ahead of failures.

Think Lifecycle, Not Just Installation

Negotiate long-term maintenance plans with your system provider. Regular cleaning, calibration, and component replacement extend system life and stabilise quality.

Demineralisation offers simplicity, quick start, and lower upfront cost for small to moderate industrial demands. It suits batch processes, short-run production lines, or locations without high purity requirements.

Reverse osmosis delivers broader contaminant removal, less chemical handling, better suitability for demanding specs, and long-term savings. It’s ideal for high throughput, high-purity, or sustainability‑focused operations.

By comparing both technologies and matching them to your water challenges, you can choose a system that balances quality, cost, and ease of operation.

Choosing between demineralisation and reverse osmosis does not have to be daunting. Listening to your process requirements, volume, feedwater profile, and environmental goals informs a clear path.

As UK manufacturing continues to evolve, the ability to adapt water treatment to changing standards and volumes becomes more valuable. Whether you prioritise low-capex simplicity or long-term efficiency, both technologies offer important benefits.

AllWater Technologies helps you evaluate those benefits based on your site, your process, and your vision for the future. For practical guidance, see our dedicated pages for reverse osmosis systems and contact us to explore demineralisation options.

Let us help you choose a water treatment system that delivers cleaner water, better performance, and stronger results.

Get in Touch with AllWater Technologies

We’re here to help with all your water treatment needs. Whether you have questions about our services, want to discuss a project, or need support, our team is ready to assist you. Fill out the form for general enquiries, or you are welcome to email direct or give us a call.

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

Water quality is a critical factor in industrial performance.

Whether it’s used as an ingredient, a cleaning agent, or a coolant, the purity and consistency of water can directly influence process efficiency, equipment longevity and product standards. One of the most effective ways to ensure high water quality in industrial settings is through reverse osmosis (RO).

This article explores the role of reverse osmosis systems in industrial water treatment, how they work, and the benefits they offer for businesses seeking cleaner, more reliable water. You’ll also learn where RO systems are most valuable and how to integrate them into a broader water management strategy.

Why You Can Trust Us

AllWater combines engineering expertise, industry experience, and UK-based support to deliver compliant, high-performance water treatment systems trusted by leading manufacturers across multiple regulated sectors.

What Is Reverse Osmosis?

Unlike conventional filtration, which relies on pore size to block contaminants, RO can remove particles as small as 0.0001 microns. This includes:

Dissolved salts and minerals (e.g. calcium, sodium, chlorides)
Heavy metals (e.g. lead, arsenic)
Organic compounds and bacteria
Silica and nitrates

This makes RO particularly well-suited for industries that require ultra-pure or high-quality water as part of their operations.

Why Water Quality Matters in Industry

The quality of water used in industrial processes affects much more than just the final product. It influences nearly every part of an operation, including:

Equipment life cycle and maintenance costs
Chemical usage and cleaning frequency
Risk of scaling, fouling, or corrosion
Compliance with environmental discharge regulations
Energy efficiency and heat transfer performance
Final product quality and consistency

Poor water quality can lead to downtime, non-compliance fines, and customer complaints. On the other hand, using treated water tailored to the process can enhance productivity and reduce operational risk.

How Reverse Osmosis Enhances Water Quality

RO systems address many of the issues associated with untreated or inadequately treated water. Here’s how they improve industrial water quality in practice:

1. Removal of Dissolved Contaminants

Hardness salts like calcium and magnesium, as well as chlorides, sulphates, and nitrates, can interfere with production. Reverse osmosis removes these at molecular level, delivering a much purer water stream. For many industries, this means less scaling in boilers and heat exchangers, improved rinse quality, and extended asset life.

2. Consistent Output Quality

Industrial processes depend on water that behaves the same way every time. RO systems are designed to maintain a stable output quality, regardless of variation in the feedwater. This reliability supports consistent product standards, especially in sensitive sectors like pharmaceuticals, electronics, and food processing.

3. Chemical Reduction

RO can reduce or eliminate the need for additional chemical dosing. By physically removing contaminants before they reach sensitive areas of the process, the reliance on softeners, descalers, or pH adjusters can be reduced. This not only saves money but also simplifies operations and storage requirements.

4. Wastewater Minimisation

Some systems combine RO with wastewater recovery, allowing for partial reuse of treated water within the plant. This is especially beneficial in industries where water discharge is limited or costly. It also supports broader sustainability goals and helps meet environmental targets.

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Reverse osmosis is used across a wide range of sectors. Each industry has different requirements, but the value of high-purity water remains consistent:

Pharmaceutical and biotechnology: RO is often the foundation of validated water purification systems used to produce purified water (PW), water for injection (WFI), or cleaning fluids for aseptic environments.
Microelectronics and semiconductors: RO helps remove tiny contaminants that could damage components or interfere with circuitry. Combined with deionisation, it forms part of ultrapure water (UPW) generation.
Food and beverage: In beverage production, RO is used for ingredient water and cleaning-in-place (CIP) systems, where consistent water quality is critical to taste and safety.
Surface treatment and metal finishing: Treated water prevents spotting, streaking, and inconsistent coatings during plating, anodising, or rinsing stages.
Chemical manufacturing: RO is used to maintain the correct concentrations in product formulation and minimise interference from unwanted ions.
General industry: From steam generation to equipment cleaning, any business reliant on process water can benefit from an RO system.

To see how reverse osmosis fits into your application, explore the full AllWater product range or visit the AllWater homepage for a broader overview of services.

Reverse osmosis is a powerful tool, but it rarely operates in isolation. Most industrial facilities integrate RO systems within a larger water treatment framework that may also include:

Pre-treatment: Sediment filters, carbon filters, or softeners to protect the membrane
Post-treatment: UV disinfection, degassing, or deionisation to meet specific purity goals
Wastewater treatment: For recovery, neutralisation, or discharge compliance
Monitoring and control: Instrumentation for flow, pressure, conductivity, and system alarms

At AllWater, we design and deliver fully integrated systems that include everything needed to optimise water quality and minimise operating costs.

Every industrial facility has unique water challenges. When designing an RO system, the following factors are taken into account:

Feedwater source: Whether it’s mains, borehole, or recycled water
Contaminant profile: The types and concentrations of impurities present
Required output: Flow rates, hours of operation, and peak demand
Purity specification: Measured in total dissolved solids (TDS), conductivity, or resistivity
Footprint and integration: Space availability, pipework, and utility connections
Maintenance access: Ease of cleaning, membrane replacement, and system monitoring

This is where expert support makes a difference. Poorly specified systems can result in higher costs, lower reliability, or compliance issues. Working with a provider who understands your industry and objectives ensures a better return on investment.

Reverse osmosis systems require regular maintenance to perform at their best. This includes:

Monitoring pressure differentials
Replacing membranes at scheduled intervals
Flushing and cleaning to prevent fouling
Checking pre-treatment efficiency
Calibrating sensors and instruments

Partnering with a provider that offers ongoing support, spares, and system optimisation will keep your plant compliant and cost-effective in the long term.

AllWater Technologies supports a wide range of clients through tailored water treatment services, performance audits, and planned maintenance contracts. Our nationwide team ensures every system delivers the reliability and purity your operation depends on.

Industrial water quality has never been more important. With tightening environmental regulations, rising utility costs, and greater focus on process performance, the case for reverse osmosis has never been stronger.

RO systems offer a proven way to improve water purity, reduce chemical use, extend equipment life, and support compliance. When integrated into a well-designed treatment system, they provide both immediate benefits and long-term value.

To explore whether RO is right for your application, get in touch with the AllWater team today or visit our dedicated Reverse Osmosis Systems page for more detail.

Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

Mechanical Design Engineer (SolidWorks)

Cheddar, Somerset | Full-Time, Permanent

What You’ll Be Doing:

As part of our innovative design team, you’ll play a key role in transforming concepts into reality:

Create detailed P&IDs, layout plans, and general arrangement drawings using SolidWorks
Develop and manage a 3D library of standard plant items
Collaborate with project engineers and clients to ensure designs meet spec
Support the quality control and validation of our manufactured systems

About You:

A degree or qualification in Mechanical or Design Engineering is preferred, but we value hands-on experience and practical know-how just as highly.
Proficiency in SolidWorks and a working knowledge of MS AutoCAD Lite (or similar CAD packages)
Ideally, 3+ years’ experience in mechanical design
A self-motivated, “can-do” attitude and willingness to get involved across projects
Strong attention to detail and a desire to continuously learn

Why Join Us?

Competitive salary + Profit-Related Bonus Scheme
Full-time, permanent role with long-term prospects
Workplace pension scheme
On-site parking, free workwear, and social activities
Supportive team and on-the-job training in specialist areas like P&IDs and water systems
A chance to shape your career in a friendly, inclusive, and high-growth business

Please note: This role is primarily office-based, especially during the initial training and onboarding period. However, there may be scope for occasional home working on a discretionary basis, depending on project needs and individual performance.

Tailored Water Treatment Solutions for Your Sector

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

Field Service Engineer (South West)

Full-Time, Permanent

Responsibilities Include:

We are seeking a motivated Field Service Engineer to support our customers across the South West of the UK. While the role is primarily focused locally, you should also be willing to travel across the UK — and occasionally overseas — to meet customer requirements. Some time spent working away from home should be expected.

As your skills and experience grow, you may also become involved in the commissioning of installed systems. This may involve extended visits to customer sites, ranging from several days to, on occasion, a couple of weeks.

What You'll Be Doing:

Servicing and maintaining water treatment systems such as Reverse Osmosis, Deionisers, Filters, Water Softeners and Effluent treatment Plant at customer sites around the UK (and potentially overseas)
Managing direct relationships with customers and plant operatives.
Analysing and resolving problems whilst both at site and by way of remote support.
Completing installation and commissioning of plant (subject to qualification and skill set)
Completing Service Reports and other associated documentation (using MS Word)
Responding to customer needs in line with commercial and technical specifications of AllWater Technologies Ltd.
Assisting the company with service improvement initiatives; taking a proactive approach to increasing productivity & profitability.
Ensuring that a high level of customer care & service is maintained at all times
Ensuring that all company policies inc. Health & Safety are observed and abided with at all times
Enhancing your own skills and knowledge through proactive learning and self-development

About You:

A multi-disciplined electro-mechanical engineer with relevant qualifications
Experience with the water treatment industry would be an advantage
Experience of having worked as a Service Engineer or in a field based technical support role would be an advantage
Passionate about providing a first-class service to our customers.
Strong communication skills both verbally and written, with the versatility to communicate at all levels in a clear and concise manner
A professional approach to your work and communication with colleagues and customers
A good level of IT competency, specifically MS Office
GCSE or equivalent – English and Maths
A full UK driving license is required and a willingness to travel

Location: Home-based but willing to work nationally and abroad.

Why Join Us?

Competitive salary + Profit-Related Bonus Scheme
Company vehicle and fuel card supplied
Full-time, permanent role with long-term prospects
Workplace pension scheme
A chance to shape your career in a friendly, inclusive, and high-growth business

Tailored Water Treatment Solutions for Your Sector

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

In Part 2 of our series on wastewater treatment, our AllWater Technologies expert covers the cutting edge technology we use to remove contaminants from water.

The ongoing problem of how to deal with wastewater from industrial practices is a modern, man-made problem that requires complex and wide-ranging solutions. At AllWater Technologies, that’s exactly what we provide our clients: cost-effective, responsible and sustainable wastewater treatment systems using the latest in technology.

In Part 1 of our series on wastewater treatment, we covered the most common and problematic contaminants that we remove for our clients across a range of manufacturing industries. Here, in Part 2, we delve into the kinds of technology we employ in the intelligent solutions we deliver.

State-of-the-Art Bespoke Solutions

From the smallest job to the largest and most complex industrial water treatment system, AllWater’s more than fifty years of experience allows us to identify exactly what our clients need. We work closely with them at every stage to ensure that the solutions we provide are not only the most effective, but also the most appropriate for them in terms of budget, operational requirements, flexibility and compliance.

With many years of expertise, we utilise a broad spectrum of state-of-the-art technology and equipment to remove the vast range of chemical contaminants produced as industrial waste. Below we detail the most effective and sustainable solutions we use for our clients.

Chemical Reaction Vessel

Reaction vessels form an integral part of many wastewater treatment systems and we use them in a variety of the processes we employ for our clients, including:

Cyanide oxidation
Chrome reduction
pH correction
Precipitation
Sulphate removal
Phosphate removal

It’s very important that the impellers (the rotating part) on the stirrer provide an adequate level of mixing but without cavitation. In order to assist in this, we may position the stirrer offset to the centre of the tank and, additionally, we may employ baffles as part of the tank itself.

Other aspects that we consider on a case-by-case basis for our clients include:

Size
Construction
Flow
Positioning

If a mixer is not adequately sized or the reaction tank design is poor, there is the danger in some instances that solids may build up at the bottom of the reaction tank leading to unnecessary maintenance requirements.

At AllWater Technologies we always carefully consider the construction materials for the tank and stirrer to ensure they are appropriate for the client. For example, for a reaction tank operating at low pH containing a high level of chlorides or even sulphates, it may be necessary to employ a mixer with a shaft and impeller that are suitably coated to offer chemical resistance.

We also consider flow through the tank, to ensure that any reagent dosed adequately contacts the waste being treated. For example, if the waste water inlet and outlet of a reaction tank are both at the top, and mixing is not adequate, then there is danger that any chemicals dosed onto the top of the tank will immediately flow straight out without adequately contacting the waste. To this end, our reaction tanks are often designed so that the waste enters at the top but exits from the bottom. Where we employ a riser tube to assist in this, we ensure that there is no chance of syphoning forward from one tank to another.

When designing bespoke systems for a client we also very carefully consider the positioning of instruments within a reaction tank. Where the instrument is contacting the waste in order to provide measurement, we make sure it is suitably submersed so that our clients can gain consistent readings. For example, we would never install a pH probe immediately adjacent to an injection of acid or alkaline reagent but within the homogenous body of water. Where any instrument is likely to require regular maintenance either for cleaning or calibration, we give special consideration to ease of access and removal.

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When we employ flocculation (the addition of a reagent to aid aggregation of smaller particles in order to assist in their removal) in our clients’ wastewater treatment systems, it is usually carried out in a reaction tank or flocculation chamber. Again, we often use a stirrer to ensure adequate contact of the dosed chemical with the waste water. However, in that instance we take great care to ensure that whilst mixing is vigorous enough to prevent solid settlement within the reaction chamber itself, it is not too vigorous as to provide a shearing force that would break up the flocs themselves. To this end we often employ gearing to ensure that the tips of any impellers operate at very slow speed.

When we design a system for a client that requires pumping waste containing solids into a settlement or flotation vessel, in-line flocculation may be employed after the pump, so that any flocs that might be formed are not broken up by passage through the pump. In this instance, we may use an in-line static mixer – which is designed to create a high level of turbulence within the pipe, without being excessive enough to break down any newly formed flocs – to provide the dynamic energy required for homogenous mixing.

Because AllWater’s clients come from a range of different industries with different needs, we use various types of settlement tanks for the removal of solids that have a tendency to sink rather than float.

A ‘Dortmund’ type settler is a vertical cylindrical tank with a conical bottom. Water enters the tank via a stilling area in the centre before passing down and exiting the stilling pipe near the conical bottom of the tank. From here the waste rises back up through the tank at low velocity, before exiting via a peripheral weir at the top. We ensure that the design velocity up through the tank is such that it is lower than the velocity at which solids drop through the water column. Solids then collect in the conical bottom of the tank before removal for further treatment or offsite disposal.
Tilted plate or lamellar type settlers employ a series of plates installed at an angle within a tank to increase the projected surface area. Similar to the Dortmund clarifier, water enters near the bottom before passing up through the tilted plate area. Solids falling out of the water column have a relatively short distance to travel before contacting the plates, where they join with other solids before sliding off into the sloping base of the tank. Like the Dortmund clarifiers we use in our wastewater treatment systems, from here the solids can be removed for disposal or further treatment.

In our systems that use a filter press, sludge from a settlement tank is pumped in under pressure and cloths fitted inside the chambers trap the solids, allowing the filtered waste water to exit the press.

The number and size of chambers within a press can vary typically between 10 – 90 chambers, and anywhere from 270ml square plates to upward of 1200ml.
The chambers are generally between 25 – 30ml deep, depending upon the nature of the waste to be filtered.
The chambers are sealed together by endplates and a hydraulic ram to ensure that water does not seep out between the plates.
We can individually port filter press plates, meaning that any filtered water comes out from a particular plate or can be internally ported where the filtrate exits via a number of common ports.
Depending upon the nature of the solids and the operating pressure of the press and feed pump, the solid content of the filter cake can vary, but a range of 25% – 35% solids is typical.
The cloths are generally constructed from a material such as woven polypropylene and must be regularly cleaned to prevent the weave becoming blocked, which can result in long filtration times and poor filter cake solid content.

Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

In this series, we have surveyed the contaminants that our leading experts in industrial wastewater treatment most frequently encounter (see Part 1), and we have explored some of the industry-leading solutions that we offer to our clients.

There are many solutions available to us, and in Part 2 we looked at some of the most common and effective. Our engineers are experienced in identifying the best techniques for each individual client, taking into account the type of waste, local legal requirements, budget and space constraints and opportunities for optimising the plant’s efficiency.

In this article, the focus widens to include a raft of other industrial wastewater treatment options that can be tailored to suit your unique business needs.

Multi-Media Filtration

AllWater employs cutting-edge technology in all our wastewater treatment solutions. Historically, sand filters were used to provide an additional level of filtration, often post settlement or dissolved air flotation prior to discharge to drain. However, our state-of-the-art systems now often use anthracite to form a layer above the sand, which offers greater solid retaining capacity. The media is normally contained within a pressurised vessel, which we can automatically backwash to carry away trapped solids.

Carbon Filtration

This system is similar in design to multi-media filters, but the filters contain granular activated carbon for removal of organics. Various different types of activated carbon are available, including bone charcoal, coconut and coal based. Each offers different properties for use in different applications. For example, coal based carbons have a more open pore structure than coconut based carbons, and are therefore more suitable for removal of synthetic oils.

Dissolved Air Flotation

Many of our clients are from industries that produce waste containing high levels of oils, fats and greases, which have a tendency to float rather than sink. In these instances we will employ a dissolved air flotation system to create a ‘float’, which rises to the surface of the waste water within the dissolved air flotation chamber and can be removed by a skimmer.

(Dissolved air refers to the air which is typically introduced to a portion of the clarified effluent under pressure, then released into the incoming waste stream. The release in pressure causes microbubbles to form within flocs as they are produced.)

Organic Adsorbent Dosing

Granular activated carbon (GAC) is an organic adsorbent but in instances where TOC/ COD levels are high, resulting in the need for changing filter media too frequently, dosing of an organic adsorbent may prove a better solution. Activated carbon in powdered form (PAC), made into a slurry and dosed via a ring main can be effective at reducing TOC / COD. The exhausted PAC is subsequently removed along with other solid contaminants following flocculation and settlement.

An alternative which may offer sufficient removal of organics is Bentonite which is available in Sodium and Calcium forms. It is utilised in a similar manner as PAC in that it is generally made into a slurry and then dosed via a ring main, prior to removal post flocculation and settlement. In some instances a combination of PAC and Bentonite may be used. Bentonite has the added benefit of being a good filtration aid, assisting in dewatering through a filter press.

Ion Exchange

For our clients who produce heavy metals, we may employ the use of ion exchange resins to remove contaminants down to part per billion levels. We may also use them to provide first stage concentration of contamination.

Electro-Winning

You might be familiar with this process in the context of the recovery of precious metals. We’ve noticed that this technology has fallen out of favour in recent years, with ion exchange now more commonly used. Typically employed on a recirculating loop from a static dragout post plating bath, metals present are plated out on the cathode and can then theoretically be reused as anode material or most likely sent away for recovery.

Our wastewater treatment experts will consider this process in those cases where cyanide is one of the contaminants. The oxidative process within the cell will eliminate the cyanide, although it is important to understand that the efficiency of metal removal is greatly affected at lower metal concentrations. The more modern cells that we install have utilised reticulated cathodes in order to help offset this.

Reverse Osmosis

For some clients’ wastewater treatment systems we may use RO membranes to provide concentration of contaminants prior to further treatment or offsite disposal of effluent.

Evaporation

Where first stage concentration has taken place, for example, by ion exchange or RO as above, we may use evaporation to reduce volume further prior to disposal if appropriate for our clients – or in some cases to the point of crystallisation.

We use various types of evaporator, depending upon a client’s requirements. These offer differing levels of economy when considering both capex and opex.

As the cheapest form of evaporation we recommend, the tank is fitted with a heater and an extraction system.
A falling film evaporator can be more cost effective for our clients from an opex point of view.
Vacuum evaporation (where a small vacuum is typically applied to a ‘kettle’) enables liquids to be evaporated at lower boiling points.

Ultrafiltration (UF)

At AllWater, we’ve got over 50 years of experience in wastewater treatment, and over the past few decades we’ve seen significant advances in the ultrafiltration membranes we use, including type and material of construction. We ensure the UF membrane systems we employ are specific to our individual clients, which is dependent upon the application and the chemical makeup of their effluent. Our UF membranes systems are available as:

Spiral wound
Hollow fibre
Tubular
Flat sheet

Applications for our clients vary dramatically and include:

Simple removal of inert solids
Removal of bacteria and the residual components of bacterial breakdown
Oily water separation

At AllWater, we recognize the importance of creating customised, compliant, and sustainable wastewater systems suited to each unique business. Our extensive expertise in industrial effluent management enables us to provide tailored, economical, and comprehensive systems to clients from various sectors.

If you’re considering upgrading your current facility or installing a new effluent system, we possess the skills, knowledge, and expertise to design and execute a cutting-edge solution. We offer round-the-clock phone support and a dedicated support team, with engineers available nationwide and emergency equipment on hand. Contact one of our highly skilled engineers to discuss your requirements.

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Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

The ongoing problem of how to deal with wastewater from industrial practices is a modern, man-made problem that requires complex and wide-ranging solutions.

At AllWater Technologies, that’s exactly what we provide our clients: cost-effective, responsible and sustainable wastewater treatment systems using the latest in technology.

State-of-the-Art Bespoke Solutions

Chemical Reaction Vessel

Reaction vessels form an integral part of many wastewater treatment systems and we use them in a variety of the processes we employ for our clients, including:

Cyanide oxidation
Chrome reduction
pH correction
Precipitation
Sulphate removal
Phosphate removal

Over many years designing practical, flexible solutions, our experience has shown us that the most important consideration when installing a suitable reaction tank is ensuring homogeneous reaction conditions are maintained at all times. In order to do this, it is necessary for us to employ the correct method of mixing, which most often is an electrically powered mechanical stirrer. It’s very important that the impellers (the rotating part) on the stirrer provide an adequate level of mixing but without cavitation. In order to assist in this, we may position the stirrer offset to the centre of the tank and, additionally, we may employ baffles as part of the tank itself. Other aspects that we consider on a case-by-case basis for our clients include:

Size
Construction
Flow
Positioning

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A ‘Dortmund’ type settler is a vertical cylindrical tank with a conical bottom. Water enters the tank via a stilling area in the centre before passing down and exiting the stilling pipe near the conical bottom of the tank. From here the waste rises back up through the tank at low velocity, before exiting via a peripheral weir at the top. We ensure that the design velocity up through the tank is such that it is lower than the velocity at which solids drop through the water column. Solids then collect in the conical bottom of the tank before removal for further treatment or offsite disposal.
Tilted plate or lamellar type settlers employ a series of plates installed at an angle within a tank to increase the projected surface area. Similar to the Dortmund clarifier, water enters near the bottom before passing up through the tilted plate area. Solids falling out of the water column have a relatively short distance to travel before contacting the plates, where they join with other solids before sliding off into the sloping base of the tank. Like the Dortmund clarifiers we use in our wastewater treatment systems, from here the solids can be removed for disposal or further treatment.

The number and size of chambers within a press can vary typically between 10 – 90 chambers, and anywhere from 270ml square plates to upward of 1200ml.
The chambers are generally between 25 – 30ml deep, depending upon the nature of the waste to be filtered.
The chambers are sealed together by endplates and a hydraulic ram to ensure that water does not seep out between the plates.
We can individually port filter press plates, meaning that any filtered water comes out from a particular plate or can be internally ported where the filtrate exits via a number of common ports.
Depending upon the nature of the solids and the operating pressure of the press and feed pump, the solid content of the filter cake can vary, but a range of 25% – 35% solids is typical.
The cloths are generally constructed from a material such as woven polypropylene and must be regularly cleaned to prevent the weave becoming blocked, which can result in long filtration times and poor filter cake solid content.

Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

From Rants to Revenue: How One Angry Call Launched a Business

They say opportunity knocks, but in my case, it shouted down the phone at me. Loudly.

I was out for a walk, enjoying my newfound freedom after leaving my previous company a few months earlier, when my phone rang. The person on the other end? A very, very unhappy former client. And by unhappy, I mean the kind of furious that makes you hold the phone slightly away from your ear for safety reasons.

After an eternity of ranting (and me wondering if I should fake bad signal), they paused for breath and I was able to calmly inform them that I was actually no longer the MD of the company they were furious with. Cue an awkward silence. Then, surprisingly, an apology from them. And just before hanging up, they let me with this lasting comment: “If you set up your own company, I’ll be your first client.”

Initially, I laughed at the idea, but it was this one angry phone call that led to AllWater Technologies being born.

And Then There Were Three

A few days later, still amused by Mr Angry’s phone call, I found myself recounting the story to Sue Fisher and John Nicholson, two former colleagues. The three of us jokingly tossed around the idea of starting our own company-after all, we already had a guaranteed first client.

Despite the thought of the three of us starting a business as a joke, it stuck with me and I realised that maybe it wasn’t such a bad idea after all. I reached back out to Sue and John and luckily for me, they were interested in making this wild idea a reality. The timing was right and we didn’t have much to lose. So in February, 2012, Sue and John officially joined me, and together, we took the plunge.

Naturally, our first call was to Mr. Angry-and true to his word, he became our first client.

Our spur-of-the-moment decision to start a business meant we weren’t exactly prepared for launching a business. We soon found ourselves scrambling for business, reaching out to old contacts, and figuring things out as we went. Just like Mr Angry, many of our former customers who had come to trust us over the years, chose to follow us into our new venture because they valued our expertise, industry knowledge, and commitment to service excellence.

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Being completely unprepared for rapid growth, we were all working from home offices and relying on using friendly supplier premises when having to build small plants. It wasn’t exactly a well-oiled operation, but it worked – until, six months in, we landed our first big order – over £300,000 – to supply capital plant in South Africa. This was a pivotal moment, proving that clients trusted us to handle large-scale, complex projects. But to deliver at extremely high standards, we needed a proper facility.

Cue the scramble to find a proper facility. It was Sue that eventually found Unit S2, Mendip Business Park, Rooksbridge, a 1,935 sq ft unit – which became our very first home and which we subsequently purchased in 2014.

Given that the premises had previously been used for storing horse food, the entire unit stank horrendously of garlic. It was initially unusable as a workspace and Sue rallied her family to roll up their sleeves and to give it a lick of paint. After their hard work, we suddenly had an operational workspace complete with a small office we could all work from and a rickety mezzanine floor that wobbled just enough to keep us on our toes.

Soon enough, we managed to complete and ship our first major order to South Africa on time. John then duly made the trip to oversee the installation and commission the plant. Despite our unpolished beginnings, we were already proving ourselves as a serious player in the industry.

As business quickly picked up, we soon found ourselves flat out with service clients and project work. Working frantically in the background, Sue collaborated with an external designer to develop and trademark the teardrop logo we still proudly use today. Alongside our new identity, we launched our very first website in September 2012, marking a major milestone in our company’s journey.

By January 2014 it was clear we needed help with on-site service work. That’s when we welcomed our first employee and a familiar face. Roger Drew who had worked with us at a previous company, and – testament to his dedication, is still with us today. The same can be said for Jeanette Bishop, who joined us in September 2014 as our first office team member to keep things running smoothly. and who we’re very happy to say is still with us today.

Our business continued to grow and in 2015 we bought another, smaller unit, D3 to provide additional build space of 1,600 sq ft and support our fledgling “cylinder exchange” business. As our team continued to grow, so did our need for office space and by 2017, we expanded within our original Unit S2, adding a dedicated kitchen area and first-floor offices. 2017 also saw us secure our first capital project order > £1m. In 2018, bursting at the seams once again, we sold D3 and purchased the adjacent unit S3, knocking through the wall to form a combined ground floor area of 4,845 sq ft giving us the room we desperately needed to keep up with demand.

During this time our team grew significantly, and we now had a dedicated sales executive, additional field-based technicians to support our growing list of service clients, and also more office staff to handle administrative support to our burgeoning number of projects.

Fast forward to 2022, and we expanded once again – adding another mezzanine area to Unit S3, to support our growing internal service admin team. Shortly after, we hit a major milestone, securing our first capital project order exceeding £2m and surpassing combined sales of £10m for the first time.

We also welcomed Stuart Howe, who joined as Director of Controls and Automation and is now leading our Projects and Production division.

At the end of 2024, we completed the purchase of AllWater House in Cheddar, marking a major, milestone for us, and more importantly, for our customers. With over 10,000 sq ft of dedicated space, this new facility will allow us to increase production capacity, enhance efficiency, and optimise operations, ensuring even greater reliability for our clients. By the end of March 2025, all production and administration will move to AllWater House, providing a more advanced and fully equipped base of operations.

And we’re not stopping there, Winterstoke House, offering an additional 6,500 sq ft gives us room to grow even further in the future, ensuring we continue to invest in new technologies and expand our capabilities to meet the evolving needs of our clients.

Of course we couldn’t have achieved any of this without our dedicated team, whose expertise and hard work have driven our success. But most importantly, we wouldn’t be here without our incredible customers, who continue to trust us with their critical water treatment needs. We are committed to expanding, innovating, and improving – not just for ourselves, but to better serve you for many years to come.

Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

A specialised engineering firm in aerospace manufacturing, Aero Fabrications Ltd. sought support for its business expansion. To meet this need, AllWater Technologies designed and installed a comprehensive water treatment solution for their new Tartaric Sulphuric Anodising (TSA) line.

Case Study Overview

Company: Aero Fabrications
Industry: Specialised Engineering for Aerospace Manufacturing
Requirement: Support growth in aerospace business.
Implemented Solution: Comprehensive Water Treatment for New Tartaric Sulphuric Anodising (TSA) Line
Results: Supply of high purity water for process solution make-up and rinsing Effluent treatment consistently achieved compliance limits set by the local water authority

The Challenge

The aerospace industry’s gradual shift away from hexavalent chromium, due to its carcinogenic properties, and continued growth led to a requirement for Aero Fabrications to install a new TSA process line. The distinctive chemistry of TSA makes it inherently more challenging to control and maintain compared to hexavalent chrome. The interactions between Tartaric acid and Sulphuric acid demand precise monitoring and adjustment, posing operational challenges during the anodising process. Treatment of TSA waste presents many challenges due to the complexing nature of the contaminants.

The Solution

AllWater Technologies designed and implemented a tailored solution that included a Reverse Osmosis (RO) plant to meet Airbus spec A water requirements and an advanced Water Treatment Plant for the TSA line’s waste. To ensure optimal efficiency, AllWater Technologies conducted rigorous laboratory testing, and designed a robust, automated system capable of handling the complexities of TSA chemistry.

Steps Taken

RO Plant Design: AllWater Technologies conducted tap water analysis and RO membrane projections, to design an RO plant that would produce water meeting Airbus spec A standards.
TSA Waste Treatment: Laboratory tests were conducted using TSA samples to optimise the waste treatment process, ensuring the highest possible level of automation and compliance with discharge regulations.

The Result

From town’s water inlet to compliance with discharge to foul sewer, AllWater introduced a comprehensive solution to all Aero Fabrication’s water and waste water requirements. The fully operational water treatment and anodising systems now exhibit efficiency and effectiveness, whilst meeting compliance limits for external governing parties, including Boeing and Airbus.

Conclusion

The validated TSA process positions Aero Fabrications as a go-to provider for Boeing and Airbus, potentially attracting more business as the industry shifts away from hexavalent chrome. AllWater Technologies’ role in this transformative journey has ensured that their Aluminium anodising process receives a consistently high quality of pure water for rinsing and also consistently achieves compliance limits.

"We have been very happy with AllWater’s professionalism and response times when we have needed help with the plant. The staff are all very helpful and knowledgeable and we are very satisfied with the service provided."

Jamie Davies

Turnspeed

"We needed a DI plant that is capable of producing the processing water to serve our Chemical Process lines twelve rinse tanks, 24 hrs a day, 7 days a week at a max of 20.00 μS/cm. The water plant is now consistently cleaning the water to 1.00 μS/cm."

Steve Silk MBE

Marshall Aerospace

"We have built a good relationship with AllWater and continue to enjoy service contracts with them. They know what they’re doing and we’re always happy with their service"

Andy Best

Production Director - Vertik-Al

Amelia

Production Manager

"AllWater Technologies installed their pure water system in our premises to replace our old system which went into retirement. The level of service and maintenance that AllWater are giving us will ensure that we get the quality of product and the length of service we are looking for out of our plant. Their level of service is excellent."

John Malone

excel gs ltd

"Thank you for all your support. I have to say that I am really impressed with All Water approach to provide a really good service. Thank you again."

Radu Vitanescu

Liberty Engineering

"AllWater have provided great service, specialist advice and an effective waste water treatment solution for our site."

Paul Pearcy

Warburtons

"AllWater have always delivered us a great service and are equally competent maintaining existing kit or installing new. They’re friendly and reliable and, perhaps most importantly, trustworthy."

Phil Parkinson

Joseph Holt

"AWT professional service allows our site to run with minimal downtime when unplanned breakdowns happen. AWT service is invaluable in maintaining our production lines throughout."

Adam Cook

Qsil

"The person was very polite and explained everything in detail. Report was typed and easy to understand."

Richard Fox

London and Brighton Plating

"We are more than satisfied with the level of service we receive from everyone at AWT. Excellent work, Thank you!"

Daniel Holden

Karas Plating

"AllWater Technologies provide an exceptional level of knowledge and support, and we cannot fault their service and commitment. The team consistently exceed expectations and although others may offer a cheaper alternative, we have every confidence that they could not offer better!"

Eric Allen

Albumedix LTD

"By using AWT we know that our plant and equipment is being maintained to the highest standard using the expertise and knowledge that we find second to none. When issues arise it is paramount that we can resolve these issues promptly; AWT are always there to support us."

Allen Staunton

Creganna Medical

"Using All Water Technologies has been a breath of fresh air. Their attentive service from the first call through to delivery completion, has made the management of our water treatment plant very easy indeed. We wash over 2.5 million items of tableware for the event industry every year, working at some of the UK’s most prestigious events, so having peace of mind over our washing operation is essential. I would recommend AWT to anyone’"

Joe Nisbet

Jongor Hire

"AWT offered Rimex a bespoke solution to our water softening and storage requirements. They took charge and managed the project efficiently and effectively from the very beginning. I am delighted with the outcome and I will continue to use AWT for preventative maintenance and any other future projects."

Daniel Meakin

Rimex Metals

"All went very well with the plant being well finished, installation being of a high standard and all works being completed on time and to specification."

Dom Oughton

Optimum

Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

Turnspeed Precision Engineering Ltd, required an effective automated solution within a containerised unit to consistently achieve waste water contaminant limits.

Case Study Overview

Turnspeed, a renowned specialist in automotive component manufacturing, collaborated with AllWater Technologies to address challenges in implementing a new plating process.

Industry: Specialised Engineering for Automotive Components
Problem: Discharge of Hazardous Complex Chemicals
Implemented Solution: Zinc Nickel Plating Process
Results:
- Consistently met discharge consent limits
- Successfully installed space-saving containerised system
- Avoided legal consequences

The Solution

AllWater Technologies underwent rigorous laboratory trials to find an effective water treatment solution for the complex chemicals associated with the new Zinc Nickel process.

This commitment to experimentation ensured that Turnspeed would eliminate harmful substances and achieve optimal results in water treatment.

Part of the solution was recognising the need for stream segregation, so that the complex metals could be separated for more effective treatment.

Treatment was achieved through an automated process which consistently met waste water contaminant limitations, whilst requiring minimal operator input from Turnspeed.

Also, due to space limitations within the production facility, AllWater Technologies built a containerised system offsite, reducing the installation time required onsite, and minimising the impact of Turnspeed’s onsite operations.

Conclusion

The integration of AllWater Technologies’ solution has been pivotal for Turnspeed’s new Zinc Nickel plating process. By implementing an automated system and recognising stream segregation, operator input has significantly decreased while consistently meeting wastewater contaminant limits. Containerised units addressed space limitations and reduced installation time, minimising disruptions to production operations. Turnspeed’s commitment to environmental standards has enhanced operational efficiency and ensured compliance, safeguarding against potential financial or legal consequences.

The Result

Overcame space limitations through successful installation of fully automated containerised unit offsite.
Consistent adherence to discharge consent limits.
Directors at Turnspeed ensured environmental responsibilities were met, avoiding legal consequences.

Jamie Davies

Turnspeed

Steve Silk MBE

Marshall Aerospace

"We have built a good relationship with AllWater and continue to enjoy service contracts with them. They know what they’re doing and we’re always happy with their service"

Andy Best

Production Director - Vertik-Al

Amelia

Production Manager

John Malone

excel gs ltd

"Thank you for all your support. I have to say that I am really impressed with All Water approach to provide a really good service. Thank you again."

Radu Vitanescu

Liberty Engineering

"AllWater have provided great service, specialist advice and an effective waste water treatment solution for our site."

Paul Pearcy

Warburtons

"AllWater have always delivered us a great service and are equally competent maintaining existing kit or installing new. They’re friendly and reliable and, perhaps most importantly, trustworthy."

Phil Parkinson

Joseph Holt

"AWT professional service allows our site to run with minimal downtime when unplanned breakdowns happen. AWT service is invaluable in maintaining our production lines throughout."

Adam Cook

Qsil

"The person was very polite and explained everything in detail. Report was typed and easy to understand."

Richard Fox

London and Brighton Plating

"We are more than satisfied with the level of service we receive from everyone at AWT. Excellent work, Thank you!"

Daniel Holden

Karas Plating

Eric Allen

Albumedix LTD

Allen Staunton

Creganna Medical

Joe Nisbet

Jongor Hire

Daniel Meakin

Rimex Metals

"All went very well with the plant being well finished, installation being of a high standard and all works being completed on time and to specification."

Dom Oughton

Optimum

Get in Touch with AllWater Technologies

AllWater House

Unit 2, 
Cheddar Business Park, 
Wedmore Road, 
Cheddar 
BS27 3EB

Opening hours

Mon-Fri: 08:30-17:30 (GMT)

Immediate assistance

+44 (0) 1934 751333
enquiries@allwatertech.co.uk

Demineralisation vs Reverse Osmosis: Choosing the Right Solution for Your Industry

Water treatment sits at the heart of modern manufacturing.

How Demineralisation and Reverse Osmosis Work

What Is Reverse Osmosis?

Why You Can Trust Us

Key Differences in Performance and Application

Cost Considerations: CAPEX and OPEX

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How Reverse Osmosis Systems Improve Industrial Water Quality

Water quality is a critical factor in industrial performance.

Why You Can Trust Us

What Is Reverse Osmosis?

Why Water Quality Matters in Industry

How Reverse Osmosis Enhances Water Quality

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AllWater House

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Mechanical Design Engineer

What You’ll Be Doing:

About You:

Why Join Us?

Tailored Water Treatment Solutions for Your Sector

AllWater House

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Field Service Engineer (South West)

Responsibilities Include:

What You'll Be Doing:

About You:

Why Join Us?

Tailored Water Treatment Solutions for Your Sector

AllWater House

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Our Technologies for Removing Contaminants from Water

In Part 2 of our series on wastewater treatment, our AllWater Technologies expert covers the cutting edge technology we use to remove contaminants from water.

Chemical Reaction Vessel

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More Technologies for Removing Contaminants from Water

In this series, we have surveyed the contaminants that our leading experts in industrial wastewater treatment most frequently encounter (see Part 1), and we have explored some of the industry-leading solutions that we offer to our clients.

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Our Technologies for Removing Contaminants from Water

The ongoing problem of how to deal with wastewater from industrial practices is a modern, man-made problem that requires complex and wide-ranging solutions.

State-of-the-Art Bespoke Solutions

Chemical Reaction Vessel

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AllWater Technologies: Our Journey, Growth, and a new chapter

From Rants to Revenue: How One Angry Call Launched a Business

And Then There Were Three

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Get in Touch with AllWater Technologies

AllWater House

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Case Study Surpassing Aerospace Compliance AllWater Technologies Successfully Implements TSA Process

A specialised engineering firm in aerospace manufacturing, Aero Fabrications Ltd. sought support for its business expansion. To meet this need, AllWater Technologies designed and installed a comprehensive water treatment solution for their new Tartaric Sulphuric Anodising (TSA) line.

Case Study Surpassing Aerospace Compliance
AllWater Technologies Successfully Implements TSA Process

Case Study Automation, Consistency, and Space Saving
Optimising Effluent System for Zinc Nickel Plating Process