Advanced Oxidation Process 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

Sidon Water is a water technology company specialised in non-chemical water treatment and system optimisation. We develop and deploy advanced solutions that prevent and remove limescale, reduce fouling and corrosion, and improve the performance of cooling towers, industrial water systems, and reverse osmosis and desalination installations. Sidon Water works with industrial clients, commercial building owners, OEMs and EPC partners to deliver measurable improvements in energy efficiency, operational reliability and asset lifetime. Our activities cover the full cycle from analysis and pilot projects to system integration, commissioning and long-term performance optimisation.

Wetsus is the European center of excellence for sustainable water technology. Wetsus connects companies, universities, and government bodies for applied research into water technology.

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

Nuoro is an independent engineering cooperative in Belgium, specializing in circular water and energy projects. As consultants, tech integrators, and main contractors, they drive sustainable innovation in water treatment, reuse, and energy recovery, serving industries and public utilities across Europe.

Our high quality photonic solutions from ultraviolet to infrared provide better financial returns, improved process reliability and more innovation.

Bluecon developed the next generation decentralized wastewater treatment units based on an innovative physical process without the use of bacteria. This robust and easy to operate treatment plant converts municipal wastewater into reusable water such as irrigation water or clean water to reuse in households.

EMEC specializes in chemical metering and dosing equipment, providing advanced solutions for water treatment and disinfection. With a focus on innovative technology, EMEC serves industries across Europe, ensuring efficient and reliable water management systems.

Guangzhou Welgo Environmental Equipment Co., Ltd. specializes in producing advanced UV sterilizers, ozone, and AOP systems, catering to various industries including manufacturing, utilities, and waste management across China and the Asia-Pacific region.

Wastewater treatment and reuse technologies that save water and care for the environment.

Jotem Waterbehandeling is specialist in waterbehandelingstechniek. Jotem levert en onderhoudt installaties voor waterontharders, filterinstallaties, UV-desinfectie, doseersystemen en proceswater.

Longking EnTech Europe S.L. specializes in engineering, procurement, and construction services, providing advanced technology solutions for infrastructure and systems in the water treatment industry across Europe. Based in Spain, the company focuses on utility and construction sectors, offering tailored solutions to meet diverse client needs.

Van Remmen UV Techniek specializes in UV disinfection systems for water. Van Remmen supplies UV installations for drinking water, process water, wastewater, and swimming pool water.

The University of Twente is an entrepreneurial research university. UT conducts research in the fields of water, membrane technology, nanotechnology, and sustainable development.

Procede Group is an engineering firm specializing in process optimization and modeling. Procede provides consulting, engineering, and software for the chemical industry and water treatment.

TU Delft is one of the leading technical universities. TU Delft conducts research and provides education in the fields of water, environment, and civil engineering.