Zero Liquid Discharge Use Case Companies

Litree: Pioneering Ultrafiltration for a Water-Secure World Founded in 1992, Litree has dedicated 30+ years to redefining water purification through ultrafiltration (UF) membrane technology—our core expertise and passion立升（Litree）. As a global high-tech enterprise rooted in independent innovation, we’ve evolved from a membrane R&D startup to one of the world’s leading water problem solvers, with over 146 core patents and state-of-the-art manufacturing hubs in Haikou and Suzhou, China立升（Litree）. Our signature hollow fiber UF membranes are engineered to deliver unmatched performance: 0.01μm precision removes 99.99% of bacteria, viruses, and contaminants while preserving essential minerals—striking the perfect balance between purity and health立升（Litree）. This technology powers our diverse solutions, from residential whole-house systems to large-scale municipal projects and industrial wastewater treatment, all designed for sustainability and cost-efficiency. What truly sets us apart is our commitment to making safe water accessible. We’ve completed projects serving 50,000+ residents with centralized purification systems that cut construction costs and footprint by 50% compared to traditional setups—proof that advanced technology can also be affordable. Today, our solutions reach 60+ countries, supporting 3,000+ industrial clients and millions of households worldwide. At Litree, water isn’t just our business—it’s our mission. We believe every drop matters, and we’ll keep pushing boundaries to create a future where clean, safe water is a universal right, not a privilege

Founded in 2009, formerly known as Red Circle Industries (RCI), RCI Aquatech creates custom wastewater solutions based on end users’ requirements, which allow for optimally chosen components resulting in a solution that meets or exceeds customer needs. RCI Aquatech’s wastewater treatment systems combine necessary process technologies to reach required state and federal discharge limits and comply with local regulations. Our systems focus on removal of pollutants such as heavy metals, greases, suspended solids, oils, high salt content, toxic compounds, phosphates and more. Using chemical-physical treatment (coagulation, flocculation, and sedimentation), biological treatment (aerobic and anaerobic) and wet chemical oxidation (persistent or toxic organics). Our expertise comprises the following technologies:  Filtration & softening systems  Physicochemical treatment (coagulation-flocculation)  Membrane filtration (UF & RO)  Ion exchange  Chemical oxidation  Biological treatment  Zero liquid discharge (ZLD) system

EC Solutions is a specialized consultancy focused on electrochemical technologies for water and wastewater treatment. We believe electrochemical processes, and electrocoagulation in particular, are among the most promising technologies in the water sector today. As a rule of thumb, anything that can be treated with conventional coagulation–flocculation can be pretreated with electrocoagulation, without adding chemicals. That means less chemical handling, lower sludge complexity, and more controllable treatment outcomes. We help industries evaluate, pilot, and implement electrocoagulation as a robust pretreatment or core process for color removal, heavy metals, TSS, emulsified oils, and complex industrial effluents. If you’re dealing with a difficult water challenge and want a cleaner, smarter alternative to chemical treatment, EC Solutions is built for that.

OnnWater, an Italian leader in water dispensing technology, specializes in advanced cooling and filtration systems. Their patented solutions, including the Tyfon® system, ensure superior bacterial elimination, making them ideal for domestic, office, and Horeca environments.

Liquid X is a water technology consultancy and commercialization platform focused on accelerating the deployment of next-generation filtration solutions, with a core emphasis on graphene-based water treatment. Founded to address the gap between breakthrough innovation and real-world implementation, Liquid X operates at the intersection of advanced material science, water infrastructure, and market deployment. While significant advances in water technologies exist globally, many remain confined to laboratories or early-stage ventures. Liquid X bridges this gap by identifying, validating, and commercializing high-impact solutions—particularly graphene-based filtration systems—within the GCC and wider MENA region. Our consultancy model is built around a full lifecycle approach: from technology scouting and technical evaluation to pilot design, validation, and scaled deployment. We work with asset owners, governments, and enterprises to translate emerging technologies into practical, site-ready solutions. This includes designing pilot programs with measurable performance metrics, enabling data-driven decision-making, and ensuring that innovations are proven under real operating conditions before scale-up. A key focus of Liquid X is the commercialization of graphene-based water filters. Graphene, a two-dimensional material with exceptional strength, permeability, and adsorption capacity, has the potential to fundamentally transform water treatment. Its nano-scale structure allows precise separation of contaminants while enabling faster water flow and lower energy consumption compared to conventional systems. Through strategic partnerships with innovators, researchers, and manufacturers, Liquid X is actively working to bring graphene filtration technologies from concept to market. These systems are being developed to address some of the most critical water challenges, including the removal of PFAS and emerging contaminants, heavy metals, dissolved solids, and industrial pollutants—while significantly reducing waste and energy intensity associated with traditional technologies such as reverse osmosis. Our role extends beyond technology development. Liquid X supports the full commercialization journey, including: Technical due diligence and performance validation Pilot implementation and third-party verification Integration with existing infrastructure Development of scalable deployment models Coordination with EPC contractors, facility managers, and regulators Ongoing monitoring, compliance, and optimization By operating as a vendor-agnostic platform, we ensure that solutions are selected based on performance, suitability, and long-term value—not vendor bias. The MENA region faces some of the world’s most acute water challenges, including scarcity, high desalination dependence, and rising energy costs. Liquid X is positioned to introduce more efficient, decentralized, and sustainable alternatives through advanced filtration technologies. Graphene-based systems, in particular, offer the potential for lightweight, modular, and energy-efficient treatment solutions that can be deployed at scale across residential, commercial, and industrial applications. At its core, Liquid X is not just a consultancy—it is an enabler of the next generation of water infrastructure. By combining deep regional expertise with global innovation networks, we are helping transform how water is treated, distributed, and consumed. Our mission is to accelerate the transition from legacy, resource-intensive systems to smarter, more sustainable water solutions—unlocking the full potential of graphene and other advanced materials to build a more water-secure future.

Guangzhou Haike Electronics Technology Co., Ltd. is a leading manufacturer of air and water purification systems, specializing in advanced filter technology. With a strong global presence, HOKO collaborates with Fortune 500 companies, producing high-quality smart home appliances and exporting to over 100 countries.

We produce a comprehensive range of spraying solutions, encompassing everything from small-scale nozzles to large industrial spraying systems. Our diverse product line includes various types of nozzles tailored to meet the specific requirements of every application and customer need. The company was established in Milan in November 1968, focusing on distributing parts and components for fire protection systems. Over time, we expanded our offerings to include a diverse range of industrial sprayers tailored to various applications. In addition to our distribution and manufacturing of fire protection system components and industrial sprayers, we specialize in designing and producing pneumatic spray nozzles for industrial use and tank washing nozzles. Our product line also encompasses a variety of complementary accessories essential for industrial washing, including filters, spray guns, and hoses. Furthermore, we offer ejectors, blower nozzles, swivel joints, and hose clamps to provide comprehensive solutions for our customers' needs. PNR Italia is part of the Tecomec Group and oversees four other affiliated companies to form PNR Company, a consolidated reality with a significant presence on the market.

Bioclear earth specializes in resolving complex environmental and soil issues. We provide sustainable solutions through research and the application of innovative environmental technology. Additionally, we support companies in the areas of knowledge development, process optimization, and sustainable business practices.

Bollfilter UK is a team of highly motivated, positive and professional people with extensive knowledge and experience of the filtration industry. Here are some recent testimonials. As the dedicated technical sales arm of Boll & Kirch – Europe’s leading manufacturer of automatic water filters – Bollfilter UK provides complete filtration solutions and expertise through the supply of quality equipment, servicing, spares and support. Boll automatic filters are widely used by the UK water treatment industry thanks to their reliability, performance and durability. Featuring unique backflushing technology, they are provide low maintenance filter protection for tertiary waste water systems and primary potable water treatment plant and are ideal for unmanned sites. For potable water applications, Boll automatic filters can protect water treatment plant, such as membrane, UV disinfection, DAF recycling and ion exchange systems with a typical filtration level of 10-500 microns. For waste water treatment, Boll automatic filters can screen final effluent down to 50 microns for intermediate wash water equipment, such as screens, belt thickeners, filter presses and centrifuges. They can also protect NSAF and sand filters and be used with disc filters to prevent spray nozzles from blocking. For final effluent washwater booster pump protection, where overall pressure in the system is low but high pressure washwater is available, a Boll automatic filter fitted to the washwater feed will remove particulates to ensure efficient performance of pumps and keep downstream nozzles free from blocking. Where automatic filtration is not required, i.e. on cleaner systems or for very coarse filtration, Boll & Kirch also offer a range of simplex and duplex manual strainers. Bollfilter UK is dedicated to meeting and exceeding customer’s expectations from the first point of contact to the selection and supply of equipment, commissioning, after-sales support, spare parts advice recommendation and timely supply, on-site service/maintenance and training, and work for continual improvement through training and development. See some of our Case Studies: Automatic river water filtration for protection of the turbine cooling system National Oceanography Centre, Southampton Offshore wind parks: Filtration for Cooling of the Converter Platform BorWin Beta Chalton WRC Tertiary Treatment Plant for Ammonia & Solids Reduction HVAC: Art Gallery Liquid to Air Cooling & Heating System Roetgen Germany Potable Water Membrane Protection Pressured Far Baulker Potable Water Nitrate Reduction Plant (Ion Exchange) Keldgate Potable Water Membrane Protection Pressured Banwell Potable Water Membrane Protection Submerged Grimsbury Potable Water Nitrate Reduction Plant (Ion Exchange) Lound Potable Water DAF Saturator Protection Vines Cross Final Effluent Wash water Filtration Pump Protection Beckton Final Effluent Wash water Filtration Pump Protection Cranleigh Effluent Nitrifying Submerged Aerated Filter Protection Marchwood Power Station Cooling Water Salzbach-Salzberg Power Station Cooling Water Glendoe Power Station Cooling Water Reuter-Berlin Protection of Water Cooling System

Gurney Environmental is a well established provider of systems and technologies used in the treatment of water and wastewater. From water supply to water re-use, we have designed and developed innovative, low cost and sustainable systems for the water and wastewater industries. Low CAPEX plus low OPEX equals low TOTEX. True sustainability is the benchmark for success with Gurney. We offer unique water and wastewater treatment systems, equipment and design including zero-to-low energy www and reservoir destratification systems. Our experience and knowledge of the water and wastewater treatment industries has successfully helped a wide variety of clients including major landowners (such as the Crown Estate) and many of the UK’s water utility companies. Our systems are today recognised internationally with a growing number of foreign municipals. Gurney has a total commitment to quality. Our systems and solutions represent the finest in long-term value, which is why we place such a strong emphasis on equipment with sturdy construction and fewer moving parts. Our commitment to a low total life cost is a key part of a commitment to quality.

Suppliers of spray systems and solutions, including the StormBlaster™ stormwater attenuation tank cleaning system, the ScreenBlaster CSO screen cleaning head and specialised spray solutions for odour control, foam suppression and other water and wastewater applications. There are many applications for spray nozzles and systems within the water and wastewater treatment sector. SNP have worked on projects for most of the main water suppliers in the UK & Ireland as well as with many in Europe and beyond. We have listed some key applications for spray nozzles below. For a full list of applications and for further details on key applications, follow the menu to the right. Cleaning systems The United Kingdom’s water industry is poised for its most ambitious transformation yet under the AMP8 (Asset Management Period 8) investment cycle, which runs from 2025 to 2030. Backed by an unprecedented £108 billion investment, the largest in the sector’s history, AMP8 is focused not only on maintaining and upgrading ageing infrastructure but also on addressing growing environmental and regulatory challenges. A significant £11 billion of this total has been earmarked specifically for stormwater and sewage spill mitigation, reflecting mounting pressure from regulators, the public, and environmental groups to curb pollution in rivers, lakes, and coastal waters. At the heart of this environmental push lies the urgent need for more stormwater retention tanks and combined sewage overflow (CSO) systems. It is estimated that some 2,000 such systems will need to be updated, refurbished or built in the AMP round of funding. This stormwater management infrastructure is vital if the target of reducing spills and sewage discharges into waterways by 44% is to be met. Much of this new infrastructure will require specialised cleaning systems. Storm water attenuation tanks can cause serious smell pollution if left improperly cleaned after usage. The StormBlaster tank cleaning system is a more effective alternative to tipping buckets, swirl eductors and manual entry cleaning. Screen cleaning Combined Sewer Overflows (CSOs) are a key feature of combined sewer systems, where rainwater and wastewater share the same pipework. During heavy rainfall, these systems can become overwhelmed without proper control measures. CSO chambers manage excess flows by allowing water levels to rise and diverting surplus into overflow pipes. A crucial component of CSOs is the screening system, which traps solids and keeps them within the sewer network. This prevents solid waste from entering local waterways and protects the environment. Foam control The formation of a stable foam in the water treatment process is a common problem. Foam can occur in aeration tanks, anaerobic digesters or secondary clarifiers. Foam is undesirable because it can overflow vessels, create slippery and unsafe working conditions, interfere with processing, damage materials, and cause tanks to drain and dry slowly. Controlling foam can be accomplished by spraying liquid onto the pool, vessel, or reservoir’s surface and allowing the spray’s droplets to impact the foam bubbles, causing them to break. Spray nozzle arrays positioned above fluid level can be used to knock back the foam and keep it under control. Odour control The use of sprays to knock down and neutralise odour is a common application for our spray nozzles. Nozzles are either used to directly treat odour particles in the air or as part of scrubber systems.

SAVE WATER, SAVE OUR PLANET! With climate change and a growing population, saving drinking water is more important than ever. 20% of our drinking water is used to flush the toilet, and therefore biocompact helps companies, governments and non-profit organisations to save drinking water in the sanitary room.

Aqua free was founded in Hamburg in 1999 and has set itself the task to improve or preserve water hygiene, or, in case of acute contamination, to restore good water quality. As a leading manufacturer of medical water filters, the product range for medical institutions includes point-of-use and pipe-integrated filters for sterile filtration.

ByoSis is a producer of biological and physicochemical wastewater treatment plants. These industrial treatment plants are designed, manufactured, supplied, and maintained by ByoSis. Our clients are companies with wastewater streams that are too contaminated for discharge.

Swissenviro GmbH specializes in organizing Swiss Pavilions at international trade fairs, promoting Swiss environmental technologies across the globe. They provide a platform for Swiss companies to showcase their innovations in waste management, water treatment, and green energy solutions.

3rd Light Media provide technical documentation and design services for water and wastewater projects, both in the UK and internationally. We provide a range of documentation for projects, helping clients achieve their handover requirements and producing high quality documents which provide the end users with the information they need to operate and maintain the plants. We are a market leader in driving digital innovative solutions to our clients to ensure documentation is presented in new and dynamic ways, this includes development of web-based O&M manuals which can integrate with client I.T. systems such as SharePoint; Graphical design to enable data and documentation of assets on a site plan or P&ID to be available within just a few clicks of a button. Additionally, we have developed a QR coded asset tagging system and mobile App. Our services mean we can provide our clients with a single source for all handover documentation requirements. The services we can provide include: Operating and Maintenance Manuals (O&Ms) Site Operating Manual (SOM) Health & Safety Files Asset Data Registration Training Manuals Site Drawings (P&IDs, Process Flows, Site Layouts and Plans, GA’s, Single Line Diagrams and more) AutoCAD Drafting Services Additionally, we also provide a range of onsite services to further enhance being a one stop provider for all your project handover needs. Some of the onsite services we provide include: Asset Identification Tags (to meet all individual client specifications) Pipe Banding to BS1710 Site signage and labelling We also provide a range of design and pre-construction services, with experience when working with Tier 1 contractors at ECI / Outline Design stages of projects including: Functional Design Specifications Control Philosophies Factory Acceptance & Site Acceptance Tests for Software Testing Commissioning Plans and Sequencing Asset Condition Reports Verification Survey Works (Producing P&IDs, ICA and Electrical Design Proposals) We work as an integrated team with both contractors and clients to ensure all aspects of project handover are achieved to the highest standard. We are able to do this with our vast knowledge of individual water companies asset standards and specifications. We are also experienced in using portals such as TWEXnet, Asite, Aconex, Business Collaborator and Conject for uploading documents. Our team comprises of skilled and experienced site and process engineers with a vast knowledge of both water and wastewater treatment systems. Our team of engineers all hold EUSR Water Hygiene and CSCS cards as well as water company specific requirements such as the Thames Water Safety Passport. We also have an in-house graphic design team providing professionally drawn illustrations and drawings which are used within our documentation, helping to visualise written descriptions and processes. Our philosophy is to take the burden of producing documentation on projects away from our clients. Being skilled process engineers, we will visit sites to gather information and we work with your supply chain to coordinate the availability of all required documents and drawings, ensuring compliance with the end clients standards. We write all the technical content and detail to the highest standard, supported by expertly drawn diagrams and illustrations. Some of the water companies we have worked with include: Thames Water Affinity Water Yorkshire Water Southern Water Severn Trent South East Water United Utilities Welsh Water Bristol Water Essex & Suffolk Water Irish Water Haya Water We work both directly with water companies and Tier 1 and Tier 2 contractors. We work on projects of all sizes, from minor schemes to major £100+ million projects.