In the pharmaceutical sector, water isn’t just a refreshment, it’s an essential raw material used in everything from equipment sterilisation to product formulation. Within this highly regulated environment, different types of purified water are required for different applications. These include Purified Water (PW), Water for Injection (WFI), and Highly Purified Water (HPW), each with its own stringent specifications.

Meeting these requirements is non-negotiable. Regulatory authorities like the World Health Organization (WHO), the South African Health Products Regulatory Authority (SAHPRA), and cGMP frameworks define exacting standards for water purity, microbial content, and system performance. Failure to comply can halt production, lead to costly product recalls, or worse, compromise patient safety.

In this article, we explore the water purification process, delve into the specific methods used in pharmaceutical applications, and explain why choosing the right system design and the right partner is crucial to success.

Understanding the Water Purification Process

Water purification systems used in pharmaceutical manufacturing go beyond basic filtration. These multi-step processes are meticulously engineered to remove particulates, dissolved solids, organic compounds, bacteria, endotoxins, and other contaminants.

The core stages of a pharmaceutical-grade water purification system typically include:

• Pretreatment (to remove chlorine, particulates, and hardness)
• Primary purification (such as Reverse Osmosis)
• Polishing steps (like Electrodeionization or distillation)
• Distribution and sanitisation (to maintain water quality through to the point of use)

Each step plays a vital role in achieving the required water quality and maintaining it consistently throughout the production process.

Purifying Potable Water for Pharmaceutical Use

A Multi-stage Challenge Purifying potable water for pharmaceutical use is not as simple as passing it through a filter. It requires a carefully constructed system, designed to comply with international standards while also addressing real-world business needs like reliability, cost-effectiveness, and low maintenance.

The components and configuration of a water purification system must do more than meet compliance, they must streamline production, reduce operating expenses, and deliver consistent performance over the long haul. In other words, the system needs to work hard, work smart, and work long.

The Pretreatment Process

Pretreatment is the foundation of any effective pharmaceutical water purification system. If untreated feed water enters sensitive purification stages like Reverse Osmosis or EDI, it can damage components, reduce efficiency, and compromise output quality.

Pretreatment often includes several key steps:

• Filtration: Removes suspended solids using multimedia or cartridge filters to prevent fouling of downstream membranes.
• Water Softening: Eliminates calcium and magnesium ions to reduce scaling on RO membranes.
• Activated Carbon Filtration: Removes chlorine and chloramines, which can degrade membranes and other purification media.
• Antiscalant Dosing: Chemical treatment to prevent scale formation and membrane blockage.

Proper pretreatment improves the performance and longevity of the entire purification system, reduces maintenance costs, and enhances compliance by delivering consistently clean feed water.

Components Within a Water Purification System

Each component in a pharmaceutical water purification system serves a specific purpose:

• Reverse Osmosis (RO): Uses semi-permeable membranes to remove 95-99% of dissolved salts, bacteria, and organics.
• Ultrafiltration (UF): Removes bacteria, viruses, and colloids while allowing essential ions to pass. Often used before or after RO depending on the application.
• Electrodeionization (EDI): Polishes RO permeate to achieve ultra-pure water by removing residual ions using electric current and ion-selective membranes.
• UV Sterilisation: Deactivates microbes and breaks down trace organics, acting as a key sanitisation step.
• Ozonation and Heat Sanitisation: Used in distribution loops to prevent microbial growth and biofilm formation.
• Storage & Distribution Systems: High-purity water must be stored and delivered through sanitised stainless steel piping with smooth interior surfaces and minimal dead legs.

Careful selection and integration of these components is essential to building a robust, compliant system that maintains water quality from purification to point-of-use.

The Importance of System Design

Designing a pharmaceutical water purification system is not just an engineering exercise, it’s a compliance strategy.

Regulatory Standards

Pharmaceutical authorities require water systems to meet strict microbiological and chemical specifications. Regulatory frameworks such as:

• WHO’s Good Manufacturing Practices (GMP)
• SAHPRA guidelines
• European Pharmacopoeia
• United States Pharmacopeia (USP)

…define the physical, chemical, and microbial properties of each water grade used in manufacturing. Non-compliance can result in failed audits, loss of production licenses, or worse.

Custom vs Off-the-Shelf Solutions

Pre-packaged water purification systems may seem attractive for their convenience or upfront cost, but they often fall short in pharmaceutical environments. They lack the flexibility to adapt to site-specific challenges, scaling requirements, and nuanced compliance needs.

A robust, well-designed system:

• Meets current operational demands
• Anticipates future expansion
• Reduces maintenance and downtime
• Ensures documentation and traceability for validation

The Vicol Advantage

Vicol (Pty) Ltd stands apart by engineering systems that go beyond compliance. We design, manufacture, and install custom water purification systems that meet global standards and support your long-term success. Our experts understand the chemistry, engineering, and regulatory frameworks required for excellence, from source water to final distribution.

Key Benefits of Using Custom Water Purification Solutions

Choosing a custom-engineered solution offers several tangible benefits:

• Regulatory Confidence: Systems are built with compliance in mind, not as an afterthought.
• Operational Efficiency: Optimised configurations reduce energy, water, and maintenance costs.
• Scalability: Systems can be expanded or upgraded as your production needs grow.
• System Longevity: Premium materials and smart design mean fewer breakdowns and lower lifecycle costs.
• Tailored Maintenance Plans: Predictive maintenance and remote monitoring options extend system life and reduce unplanned outages.

Conclusion

Pharmaceutical manufacturing is one of the most rigorously regulated industries in the world, and for good reason, patient safety depends on it. Water used in production processes must meet exacting purity standards at every stage.

This level of purity can’t be achieved with a generic solution. It requires a tailored approach, one that considers the chemistry of your feed water, the layout of your facility, your production goals, and the long-term sustainability of your operations.

Choosing the right purification partner is as important as the system itself.

It’s Not Just Equipment — It’s Assurance by Design

With the right materials, intelligent configurations, and industry insight, Vicol helps clients avoid compliance risks, lower operational costs, and secure long-term water quality.

Let’s build smarter, cleaner, and compliant water purification systems, together.

Reach out to Vicol (Pty) Ltd today to begin your tailored solution.

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Vicol was recently contacted by a pharmaceutical company seeking modifications to enhance their current water purification system. The plant, commissioned in 2018, is slated for improvements aimed at boosting efficiency and fortifying the system to ensure its microbiological integrity.

The requested upgrades encompass:

• Inclusion of Ultra Violet light disinfection assembly
• Cooling & temperature regulation of the RO plant
• Upgrade of pre-treatment process

The post Client Success Story: Modifying Pharma Water Purification System appeared first on Vicol.

The pharmaceutical industry, in particular, is heavily dependent on a reliable, safe and sustainable supply of purified water. One of the main processes required by the pharmaceutical industry is water for injection (WFI) systems that provide some of the highest quality water available on the planet. The main difference between WFI and other purification processes is that WFI produces water that meets much stricter regulatory controls and standards.

When it comes to WFI, pharmaceutical companies require a deeper removal of unwanted particulates and compounds from their water sources. Even though many of the bacteria, organic compounds and minerals present in the municipal supply are not harmful to humans – in fact, many are beneficial to us – can be detrimental to the very delicate manufacturing processes conducted by pharmaceutical companies. As WFI is used in the preparation of parenthal products such as IV’s and injectables an extremely low bacterial and endotoxin (cellular wall of dead bacteria cells) levels are stringently enforced to ensure patient safety.

That is why we have even more sophisticated water purification processes in order to generate, WFI, for the pharmaceutical industry. WFI generation processes produce water that can meet the most rigorous and toughest quality control. Water purification partners help pharmaceutical companies manufacture the best possible quality drugs and medicines. However, that also requires careful transportation and storage to ensure it remains within required specifications after it goes through several purification processes.

Not every manufacturing operation in the pharmaceutical sector requires WFI-level purity from their water, but when they do, it is absolutely critical that their water purification partners meet their exacting standards. WFI goes through many of the same processes as other Purified Waters and waters for consumption, however it will always include additional processes such as Ultrafiltration and/or Ultraviolet radiation to ensure compliance with WFI standards.

Let us take a look at some of what is required of water purification systems and processes to reach the purity level of WFI for use in the pharmaceutical industry:

Deionisation Techniques

The process of dissolved ionic and molecular removal is critical in WFI purification processes as it removes a variety of unwanted particulates, organic compounds, minerals and living organisms from the water source. Ion rejection allows the water to pass through some kind of membrane or filtration system and leave behind unwanted particulates and compounds. This is done using one of three common deionisation techniques: membrane systems, distillation methods and ion exchange processes.

Ultrafiltration and reverse osmosis membranes have revolutionised the way we purify water for the preparation of WFI for the pharmaceutical industry. They – in conjunction with other technologies – have made the deionisation and purification of water a more precise and effective process. Water purification companies rely on these systems to ensure they can reach the purity levels and high standards requirement for pharmaceutical manufacturing.

Dechlorination Processes

Prior to the processes of double-pass reverse osmosis, Ultrafiltration or other distillation techniques required in preparing WFI the feed water is dechlorinated. This refers to the removal of chlorine from the original potable water source. Specific methods, such as UV radiation, reducing agents like sodium metabisulfite and carbon filtration, are used to remove any chlorine remnants that could damage the sensitive membrane processes used to generate water for Pharmaceutical use.

The most common dechlorination strategy in the industry is to run that water through an activated carbon filtration system that attaches to and reacts with the chlorine molecules. This reaction forms carbon monoxide or hydrochloric acid that are easy to remove from the water source and effectively removes all chlorine. Additionally, UV rays can be used for TOC reduction and for sterilisation during pre-treatment steps prior to the main purification processes.

Bacteria Control and Removal

Pharmaceutical water for injection is of the highest quality, but can still be susceptible to a variety of common bacteria that thrive in water. In order to ensure that the water is microbially free as it was going through the WFI purification processes, that water must be free of any unwanted bacteria. Bacterium build-up will often occur during the processing, storage or delivery phases of producing WFI for pharmaceutical use.

There are many antibacterial techniques used by water purification companies that include: UV lights, ozone generation, heating, recirculation and chemical injection systems. UV lights are a popular form of bacteria control and provide an effective, non-invasive, and non-chemical means of removing unwanted bacteria from purified water at any stage in the production, storage, and delivery of water for injection.

WFI Storage and Distribution

As we have mentioned, storage and distribution are crucial to the success of purification processes for WFI. It does not matter if you can purify the highest quality water on the planet; if you cannot keep that water microbially stable, safe, and uncontaminated during the storage and distribution process. This is where pharmaceutical company owners and managers need to ensure they select the right partner for their water purification needs.

Water purification businesses will have a rigorous and precise process for creating WFI-level water and delivering that product on time and consistently. However, it is important that they have an equally detailed procedure for what they do with your water between their purification facility and your manufacturing facility. Choosing the right water purification partner could be the difference between world-class pharmaceuticals and ones that cannot pass strict regulatory requirements.

Conclusion

Ensuring that the water used in your pharmaceutical operations is up to standard and meets all industry regulations can become a difficult task without the right supplier. Vicol offers industry-leading custom turnkey water purification solutions for the global pharmaceutical industry, including custom designs, manufacturing, system installation and maintenance. For more information about how our incredible water purification solutions can help support your business, contact Vicol today.

The post Water for Injection (WFI) Preparation for Use in the Pharmaceutical Industry appeared first on Vicol.

For many years, the prescribed method of WFI generation by the European Pharmacopoeia included only for distillation. Distillation was typically paired with a distribution system operating at elevated temperatures. The challenge for most WFI users was that the stored and distributed water needed to be cooled for use. This combined with the energy needed to run distillation plants effectively led to an energy inefficient process.

By contrast the United States Pharmacopoeia had already deemed technologies other than distillation as acceptable for the generation of WFI. Therefore, they were able to present a proven track record detailing the safe and effective generation of WFI using alternative technologies.

The move by the European Pharmacopoeia, in early 2000s, to create the classification of “Highly Purified Water” was seen by most as an interim step to the approval of non-distillation based WFI generation. HPW, while having the same specifications as WFI, was permitted to be generated using alternative technologies, but was for selected use within the Pharmaceutical industry, mostly in the manufacture of APIs.

In April 2017, the much anticipated review of the monographs (0169) by the European Pharmacopoeia was published, which allowed for the use on non-distillation based technology for the purposes of WFI generation.

The significant benefits offered by the revision to WFI users are:

Energy Efficiency
Essentially, the non-distillation technologies use combinations of membrane and electro-deionisation technologies all of which generate WFI quality water at ambient temperatures. As a result, the heating and cooling elements used for the operation of distillation systems are no longer required.

Vicol Approach
Vicol has significant experience in the application of non-distillation based technologies within the pharmaceutical industry. Vicol has successfully built and commissioned numerous treatment plants complying with the USP specifications for both PW and WFI.

Drawing on this experience and based on information shared with international technology partners, Vicol engineers have designed a robust treatment approach. This approach combines Reverse Osmosis technology in a heat sanitisable format with the option of the inclusion of a pharma-compliant electro-deionisation module and integrated with a final ultra-filtration step to ensure consistent WFI generation.

The resultant treatment system conforms to the regulations and guidelines of the USP and EP and draws on reference publications as expressed in the ISPE. This results in a qualified system meeting the requirements of international and local regulatory bodies, such as SAHPRA.

Cost Effective
WFI can now be generated more cost-effectively since the utility requirements typical of distillation plants are no longer required.

The post The Transition to Ambient WFI Generation by the European Pharmacopoeia appeared first on Vicol.

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In this article, we will cover the different types of water that are used in the pharmaceutical industry, the challenges faced when selecting the correct water purification process for you and how Vicol (Pty) Ltd can help your company overcome them.

The 8 types of water used in the pharmaceutical industry

There are several types and grades of water that are used in the pharmaceutical industry’s manufacturing processes. Each grade adheres to the strict guidelines and standards set out by the global pharmacopeia’s regulatory bodies, such as USP, SANS, SAHPRA, WHO, EP and ISPE.

These types and grades of water are:

1. Non-potable water
   This type of water is of poor drinking quality and should not be consumed. However, it can still be used for many other purposes, depending on its quality, such as cleaning the interior or exterior of a factory, cooling systems, landscaping, irrigation, etc.

2. Potable (drinkable) water
   This type of water is not used in general pharmaceutical manufacturing, as it contains a considerable number of solids, such as chlorides, sulphates and bicarbonates (Na, K, CA, and Mg). However, it can still be used for general drinking water, washing and the extraction of crude drugs, as well as the preparation of products for external use.

3. USP purified water
   This type of water is utilised in the manufacturing and production of all medications containing water. This grade of water must meet all regulatory requirements for ionic and organic chemical purity and must be protected against microbial contamination during storage and transportation.

4. USP water for injection (WFI)
   This type of water is used as a solvent in the production of parenteral medications and other preparations where endotoxin content must be controlled. Since endotoxins are created by microorganisms that tend to inhabit water, the equipment and procedures used in the water purification system, to store and distribute WFI, must be designed to minimise microbial contamination. This includes the removal of incoming endotoxins from the standing water.

5. USP sterile water for injection
   This type of water must comply with the standards seen in the USP monographs for water for injection and should only be packaged in a single dose container, not more than 1-litre in size. The Total Organic Carbon (TOC) as per IP should be no more than 0.5 mg/litre. In contrast, the same limit of TOC for Water (500 PPB) in USP and BP.

6. LUSP sterile water for inhalation
   This type of water is prepared using WFI grade processes, that has then been packaged in type 1 or type 2 glass containers and rendered sterile. Its intended use is for inhalators and in the preparation of inhalation solutions. As it carries less stringent specifications for bacterial endotoxins than sterile WFI, it is therefore not suitable for parenteral applications.

7. USP bacteriostatic water for injection
   This type of water is used as a dilutant in parenteral products, mainly for multi-dosage medications requiring continuous contents withdrawal. It contains bacteriostatic (antimicrobial) agents and should always be packaged in single-dose containers or small multi-dose containers. These should be no larger than 5ml in size or in a multi-dose container no larger than 30ml.

8. USP sterile water for irrigation
   This type of water is prepared using the same WFI grade procedures and has been packaged and rendered sterile. This water is commonly used when sterile water is required but does not have particulate specifications, which includes wherever pure water or WFI is specified. It is typically stored in sterile containers larger than 1 litre.

The challenges faced when selecting the right water purification system

When a pharmaceutical company is looking for a water purification system or water supplier, they are often unsure of what they need or what solutions will work best in their manufacturing process. This leads to companies purchasing limited or basic water purification systems that do not meet the pharmaceutical company’s requirements, which can escalate to compromising operational efficiency, which will, in turn, affect their operating costs and production quality.

One of the most significant concerns expressed by pharmaceutical manufacturers across the globe is Total Organic Carbon (TOC), which is a key indicator to test for in water purification processes. Additionally, in the production of pharmaceutical products, microbial contamination is a large concern, as any organics or bacteria can affect the quality of the water and, ultimately, your products.

Water contaminants can materialise in the following ways:

1. Poor water purification system design
   It is important that pharmaceutical companies fully brief the water purification design team on the exact requirements needed for their manufacturing processes. Otherwise, what can end up happening is under-engineered systems are designed that do not meet the necessary water purification requirements set out by the USP, SANS, SAHPRA, WHO, EP and ISPE. These systems could also fail to include essential purification components, such as RO (Reverse Osmosis) filters, storage vessels, deionisation systems, UV technology and final filtration.

2. Poor distribution and water storage tank design
   Water purification distribution systems are often constructed from stainless steel, if passivation is not performed to prevent corrosion of the stainless-steel pipes, possible contaminants from the pipes could enter the water. The same material is used in the design and creation of water storage tanks, however, if poorly fitted and not ventilated with hydrophobic air filters, it is possible for microbial contamination from the outside air to occur inside the tank.

3. Inadequate storage and distribution design
   Storage and distribution systems that are poorly designed can lead to the establishment of microbial biofilms, which causes product contamination if not detected and removed quickly. Unfortunately, microbial colonisation is often difficult to detect because biofilms release contaminants slowly and randomly.

4. Selecting the wrong testing procedure
   Sending water samples to outsourced labs for TOC count can increase the risk of potential human error, as well as false out-of-specification results. With industry advancements in technology and equipment, like an inline meter that can take the “human error” element out of the equation; providing you with more accurate and timely results.

5. Variations in storage temperature
   Recirculating stainless steel systems are typically used to store pharmaceutical grade waters, however, polyvinylidene fluoride (PVDF) can be used when very low mineral content water is needed. Recirculating stainless steel systems offers the capacity to operate at temperatures of 10ºC to 80ºC. Depending on the grade of water being stored and the manufacturer-specific requirements, the distribution systems can operate as “cold” or “hot” systems with the desired temperature being maintained to ensure ongoing microbial stability.

Making the right choice for your pharmaceutical company

Understanding the potential risks of a poorly manufactured water purification system will help you make the right decision when choosing the best water purification system for your pharmaceutical company. At Vicol (Pty) Ltd, we work with many of the biggest and best pharmaceutical companies around the world. With over 20 years of industry experience, we know what having the right water purification system can do for your business.

Purification systems designed for growth

Planning for the future and its possibilities is, generally, something companies worldwide will do quite consistently, in terms of company growth, direction, pitfalls, etc. However, a big mistake that is often made by, both, manufacturers and water purification system designers, is focusing purely on today’s usage.

A water purification system should always be designed with the flexibility that is needed for future growth. Afterall, when your company grows, you will need a flexible water purification system that can handle all increases in usage without worrying whether you will need to halt all production to perform needed system upgrades.

At Vicol (Pty) Ltd, we continuously strive to provide custom-designed solutions that will not only suit our clients current water purification needs, but also keep in mind their future needs and growth potential. Over the years, we have been able to guarantee measurable results and, with our ability to quickly adapt to niche requests, we can accommodate these requirements with minimal impact on costs to our clients.

Understanding industry requirements and regulations

Water purification in the pharmaceutical industry has stringent regulations and demanding requirements that are frequently monitored and updated by the USP, SANS, SAHPRA, WHO, EP and ISPE. It is therefore vital that your water purification system meets these standards and are validated by these bodies, accordingly.

As with all pharmaceutical processes, validation and documentation of your water purification system is a must. If a water purification system manufacturer is not up to date with regulations or are unable to provide the relevant validations and documentation, then odds are the system created will not be up to code and can, potentially, cause serious manufacturing issues in the future.

At Vicol (Pty) Ltd, we are continuously studying changes in regulatory requirements, which may include revised guidelines and regulations. We are also able to provide our clients with a complete design solution that consider all regulatory demands, including:

1. Plant and Process Design
2. Turnkey Installations
3. Commissioning and Operator Training
4. Risk Assessment and HAZOP Studies
5. Complete Documented Quality Control Plan for Each Part of the Process
6. Complete Validation Documentation for Pharmaceutical Applications

European quality solutions, delivered to Africa by a South African company

Finding the right water purification solution for your pharmaceutical company may be a challenge, but with the right water purification partner, it can be a breeze. At Vicol (Pty) Ltd, we take extra care when considering your company’s requirements and, with over 20 years of industry experience, we can help find you a flexible water purification solution to suit your current and future needs.

As a South African-based company, we believe in delivering international quality services to the African pharmaceutical industry. We understand your company’s need to save money and time, as you grow your brand, which is why our services are focused on supporting that overall goal. We offer guaranteed results, affordable designs, effective implementation, experienced partners and, most importantly, accessible, localised and reliable support.

Contact us today at +27 (0) 11 315 1842 or visit us at www.vicol.co.za for more information on how we can help you design the perfect custom water purification solution today.

References:
https://www.pharmtech.com/view/understanding-usp-water-pharmaceutical-use
https://pharmaguddu.com/types-water-pharmaceutical/

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