Process Water Treatment
Puragen develops activated carbon solutions specifically designed to remove contaminants from process water to ensure high-quality output, protect equipment and support efficient, cost-effective operations.
Media and mobile filters adsorb organic compounds, disinfectants, and dissolved solids—enabling water reuse, waste reduction, and product integrity.
Contaminants we remove
Puragen’s process water applications remove a wide range of harmful contaminants, ensuring safe, compliant and high-quality process water.
Activated carbon products for Process Water Treatment
We provide a range of different carbon filtration media for process water applications. The right carbon form depends on your process chemistry, flow rates, and whether continuous treatment or batch dosing better fits your operation. Puragen’s technical team can evaluate your water profile and recommend the appropriate media grade, particle size, and contact time. Both GAC and PAC can be supplied as part of a managed service that includes exchange, reactivation where applicable, and ongoing performance monitoring.
Granular Activated Carbon (GAC)
GAC is the standard choice for continuous-flow process water treatment, where water passes through a fixed bed of granular carbon media to remove dissolved contaminants before or during production. Puragen’s GAC grades are engineered for consistent adsorption of chlorine, chloramine, PFAS, VOCs, and other process-disrupting compounds across fine chemical, food, beverage, and industrial applications. Spent GAC can be reactivated at Puragen’s award-winning facility, reducing long-term operating costs and the environmental footprint of your filtration process.
Powdered Activated Carbon (PAC)
PAC is suited to batch-dosed treatment processes where carbon is introduced directly into the water stream and removed by clarification or filtration downstream. It is effective for managing intermittent contamination events, protecting sensitive process steps, or treating water where a fixed-bed system is not practical. Puragen’s PAC grades are selected for rapid adsorption kinetics and can be matched to specific targets including pesticide residues, pharmaceutical compounds, and taste-and-odor precursors. Because PAC is used in a single treatment cycle, it is best suited to applications where batch dosing aligns with operational requirements.
Mobile filters for Process Water
Our mobile filters are optimised for a variety of water applications. We can adapt our filters to integrate with any specific site installation requirements.
Mobile units are well suited for protecting process lines during planned maintenance, managing temporary demand increases, or running a pilot before committing to a permanent installation. All AquaSorber units arrive pre-commissioned and ready to connect, with minimal site preparation required. Puragen handles carbon loading, exchange scheduling, and spent carbon removal so your team can focus on production.
AquaSorber 2-SX
Maximum Flow Rate (m3/hr): 12
AquaSorber 5
Maximum Flow Rate (m3/hr): 20
AquaSorber 22-100
Maximum Flow Rate (m3/hr): 100
Clean-Flo HY1
Maximum Flow Rate (m3/hr): 1.1
Relevant Industries
These industries commonly use Puragen’s Process Water Treatment applications. Take a look at our other products and services for these industries. Process water purity requirements vary significantly across these sectors, from food-grade standards in beverage production to tightly controlled chemistry in pharmaceutical manufacturing. Puragen works directly with process engineers and quality teams to understand those specific requirements before recommending a carbon solution. Contact us to discuss the contamination challenges and compliance standards relevant to your operation.
Purify, decolorise and remove contaminants from chemical and medical products
Enhance safety and quality through purification, decolorisation, deodorisation and removal of organic compounds
Filter emissions from industrial and manufacturing processes
Our Capabilities
To deliver the best possible filtration solutions for every customer, Puragen takes a long term partnership approach, we can manage and support each and every stage of the journey, and are committed to innovation to improve everything we do.
Expertise & Analytics
Our award winning chemists, materials scientists and engineers use leading lab facilities and analytics to derive and support precise technical solutions for each customer requirement.
Carbon Engineering
We supply a comprehensive range of carbons tailored to specific applications. We also enhance the performance of our carbon for specific processes via impregnation and precise particle sizing.
Fixed Filter Services
We can manage as much of the carbon lifecycle as each customer requires, from supply, carbon exchange and reactivation to system maintenance and optimisation.
Mobile Filtration
We operate a growing mobile filter fleet to deliver scalable, plug and play filters to customers, with maximum flexibility, minimal downtime, and no on-site waste handling.
Reactivation
We operate one of the most advanced closed-loop carbon reactivation networks in Europe to deliver efficient filtration, traceability and environmental benefits.
Integrated Logistics
Our processing and logistics hubs deliver to and support each customer’s needs across our full range of products and services.
case studies
Puragen Case Studies
See how Puragen is helping customers succeed with our Water & Liquid applications. These projects cover a range of process water challenges including PFAS removal, dechlorination for sensitive production processes, and contaminant control in food and beverage applications. Each case study details the specific treatment objective, the activated carbon solution deployed, and the outcome achieved. They serve as a practical reference for engineers evaluating carbon filtration for comparable process water applications.
Large-Scale PFAS Remediation at a Manufacturing Site
Treatment of wastewater containing 17 PFAS species. High-efficiency removal, regulatory compliance, and secure PFAS destruction through advanced…
High-efficiency removal of PFAS from industrial wastewater
Advanced removal and destruction of PFAS from industrial wastewater at a chemical manufacturing facility.
PFAS Abatement: Drinking Water Case Study
A multi-year contract to deliver a comprehensive PFAS treatment solution at a drinking water facility
PFAS Abatement: Wastewater Case Study
PFAS in wastewater is one of the toughest environmental challenges industries face today. Using high-performance activated carbon and tailored treatment…
High-Efficiency PAH Removal for Premium Edible Oil Production
Puragen’s PAC solution removed harmful PAHs, improving taste, colour and safety while maintaining efficient, cost-effective edible oil production.
Delivering operational continuity at a beverage facility
A West Coast beverage plant faced a production risk when aging carbon beds failed to remove chloramine from an alternative water source. Puragen delivered…
Frequently Asked Questions
Activated carbon removes dissolved organic contaminants, disinfectants, and trace chemicals from process water before or during production, protecting both product quality and downstream equipment. It is widely used where incoming water contains chlorine, chloramine, VOCs, or other compounds that would interfere with sensitive process steps or affect final product purity. Puragen selects and engineers the appropriate carbon grade based on your specific process chemistry and flow conditions.
Chlorine and chloramine are commonly present in municipal water supplies and can cause unwanted chemical reactions, catalyst degradation, or quality defects in food, beverage, pharmaceutical, and fine chemical processes. Activated carbon adsorbs and catalytically decomposes these disinfectants rapidly and reliably, making it the standard pre-treatment method for sensitive process water applications. Puragen can size and configure GAC systems to ensure complete dechlorination at your required flow rates.
PAC is the better choice when treatment is intermittent, when contamination events are unpredictable, or when a fixed-bed vessel is not compatible with the process layout. It is also used where a high carbon dose is needed for a short duration, such as managing a product quality issue or treating a discrete batch. For continuous, high-volume process water treatment, GAC in a fixed bed is generally more cost-effective over time.
Yes. Puragen’s mobile filter fleet allows customers to trial activated carbon treatment at process scale before committing to a permanent system, providing real operating data on removal performance and carbon consumption rates. Once the pilot confirms performance, Puragen can transition to a fixed installation or continue with managed mobile filtration depending on the operational preference. Our technical team supports both stages, from initial carbon selection through to long-term performance monitoring.
Puragen’s process water solutions are used across fine chemicals and pharmaceuticals, food and beverage production, and industrial and manufacturing operations. Each sector has distinct water quality requirements and regulatory standards, and Puragen’s approach is to engineer solutions specific to those requirements rather than supply standard off-the-shelf media. Our specialists work alongside your process and compliance teams to ensure the filtration solution fits within your existing infrastructure and meets your product and permit specifications.
