Treatment Technologies
Water Disinfection Companies
Disinfection providers across chlorination, chloramination, ozonation, UV, and electrochemical processes for potable and reuse water.
This page is a good fit if you need:
- Flat Sheet UF Membranes or Hollow Fiber RO capabilities
- Suppliers with food-beverage sector experience
- Providers operating in China or Indonesia
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9 results from 9 matched providers
Ecosystems International
PT Ecosystems International (PT ESI) was established at Jakarta on 21st November 2006. We are an industrial effluent treatment systems integrator specializing in electrocoagulation (EC), a unique waste water treatment profile. PT ESI has capabilities in designing complete waste water treatment solutions by combining various effluent treatment systems such as the electro-coagulation, biological, chemical processes and membrane filtration, offering its customers a wide and comprehensive range of solutions, tailored to suit their various needs – ranging from basic effluent treatment for discharge to effluent recycling for water reuse. The Company is experienced in handling the design, engineering, procurement, construction and operation of new Effluent Treatment Plants (“ETP”) and possesses expertise in retrofitting existing ETP to increase the flow rate and treatment capability without any major infrastructure increase PT ESI is also a premier waste water treatment service company specializing in handling waste water generated from Exploration (Drilling) and Produced Water. Customers in Indonesia include major Oil & Gas companies such as Pertamina, Exxon, Chevron, Petro-China and Medco. Operations in Indonesia are provided by both mobile and fixed units. At drill sites where waste-water recycling is required, PT ESI supplement these treatment units with skid mounted mobile Reverse Osmosis systems. The technologies and solutions employed by PT ESI are developed in-house and examples of these are its proprietary Trident™ Electro Contaminant Removal (“ECR”) system, the Stage Contaminant Removal (“SCR”) process and Mobile On-Site Waste-Water Treatment (“OWT”) units
Brine Consulting
BRINE CONSULTING delivers senior-level strategy, technical design, and actionable insight across the full lifecycle of water-related challenges. We support clients with advisory and due diligence, advanced brine management and resource recovery, industrial and municipal water reuse, and MLD/ZLD systems. Our team also leads ESG and climate-resilience strategy, innovation scouting, and international development and PPP advisory. With deep specialization in desalination, brine valorization, circular economy models, and high-impact infrastructure, we help organizations turn water and waste streams into opportunities, providing clear thinking, rapid delivery, and solutions built for real-world results.
Gi Aqua , Water as a Service
GI WAAS delivers cutting-edge water and wastewater solutions using advanced nanotechnology and zero total discharge solution sets industry standards. Our mission is to provide smart, sustainable, and decentralized treatment systems. We are committed to circular economy principles and reducing environmental impact. Our holistic approach provides comprehensive, tailor-made solutions that are designed to meet the specific needs of each client
Hangzhou Realize Technology Co., LTD.
HANGZHOU REALIZE TECHNOLOGY CO., LTD. is a technology enterprise. The company collaborates with domestic and international universities such as Beijing University of Technology, Tsinghua University, and Berlin University of Technology to address the challenges of enhancing anaerobic efficiency and nitrogen removal in high-ammonia nitrogen wastewater. The core technologies foucs on energy-saving denitrification and enhanced green methane production. These two technologies can increase production efficiency of green methane by 20% and reduce costs of wastewater denitrification by 60%.
Hainan Litree Water Purification Technology Industry Co., Ltd.
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
Sidonwater S.L.
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.
Guangzhou Haike Electronics Technology Co., Ltd.
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.
PNR ITALIA Srl
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.
Evergreen Water Solutions
A leading supplier of progressive wastewater treatment systems Evergreen Water Solutions works closely with a number of international engineering companies whose expertise are in scalable wastewater treatment systems and containerised wastewater treatment systems for municipal and industrial application. Evergreen Water Solutions offers a comprehensive engineering service. Our company incorporates initial design and planning, to implementation of projects that are delivered on time and on budget. Our expertise in wastewater treatment covers infrastructure development, package sewage treatment systems and advanced treatment technology for wastewater recycling with the strictest treatment requirements. The goal of Evergreen Water Solutions is to exceed the expectations of our clients, foster long-term relationships, and make a positive impact on the environment and industry standards. Evergreen Water Solutions use innovative products and suppliers to source, design and implement leading environmental water and wastewater treatment products and solutions. All new equipment and suppliers are required to undergo pre-qualification program and a series of acceptances and trials are applied prior to the approval of the vendor. Evergreen Water Solutions’ pre-qualification program guarantees you our clients that the products we source are of the highest standard within the industry, these products along with the expertise within Evergreen Water Solutions ensures that the solution we provide will meet and exceed any expectation you might have.
Choosing Between Chlorination, UV, Ozone, and Chloramine for Water Disinfection
Disinfection technology selection is driven by the target organisms, the regulatory framework, and the presence of organic precursors that react with chemical oxidants to form disinfection byproducts (DBPs). Free chlorine is the most widely used primary disinfectant for potable water because it provides a residual throughout the distribution system, but it reacts with natural organic matter (NOM) to form trihalomethanes (THMs) and haloacetic acids (HAAs) regulated under EPA Stage 2 DBPR. UV disinfection at 254 nm inactivates Cryptosporidium and Giardia at doses where chlorine is largely ineffective, but provides no distribution system residual.
Ozone is the strongest oxidant used in water treatment, capable of inactivating virtually all pathogens at practical doses and oxidizing micropollutants including pharmaceuticals, pesticides, and taste/odor compounds. However, ozone generates bromate in bromide-containing source waters, requires on-site generation, and has higher capital and energy costs than chlorination. Chloramine—formed by combining chlorine and ammonia—is used as a secondary disinfectant in distribution systems to maintain residual without THM and HAA formation, but requires careful NH₃:Cl₂ ratio control to prevent free ammonia, which promotes nitrification.
For industrial process disinfection—cooling towers, process water circuits, and produced water—the oxidant choice also depends on material compatibility, contact time, and monitoring requirements. Chlorine dioxide is increasingly specified for industrial applications because it does not form THMs, penetrates biofilm more effectively than free chlorine, and maintains efficacy at higher pH values. Providers should supply a CT (concentration × time) calculation demonstrating that their proposed disinfectant dose achieves the required log inactivation credit for your target organisms.
Frequently Asked Questions
How do I choose between UV and chlorination for a potable water disinfection upgrade?
UV is the preferred technology when your source water has a Cryptosporidium or Giardia risk, when your distribution system is short (no residual required), or when you want to minimize DBP formation from high-NOM source water. Chlorination is required whenever distribution system residual must be maintained to prevent microbial regrowth. Many modern systems use UV as the primary inactivation step followed by a reduced chlorine dose for residual—this combination maximizes pathogen control while minimizing DBP formation.
What is a CT value and how does it determine my disinfection system design?
CT is the product of disinfectant concentration (C, in mg/L) multiplied by contact time (T, in minutes). EPA and state primacy agencies publish CT tables specifying the minimum CT required to achieve defined log inactivation credits for Giardia and viruses under different pH and temperature conditions. Your system design must demonstrate that the actual CT delivered—accounting for baffling efficiency, flow short-circuiting, and temperature variation—meets or exceeds the regulatory CT requirement under worst-case hydraulic conditions.
What causes nitrification in chloraminated distribution systems and how is it prevented?
Nitrification occurs when excess free ammonia in the distribution system supports the growth of ammonia-oxidizing bacteria (AOB), which convert ammonia to nitrite and nitrate and consume the chloramine residual. It is most common during warm summer months and in low-flow zones with long residence times. Prevention requires tight chlorine-to-ammonia mass ratio control (typically 4:1 to 5:1 by weight), booster chloramination at remote points in the system, flushing programs for dead-end mains, and a nitrification response plan with trigger levels for nitrite and monochloramine residual.
What should I require in a disinfection system commissioning protocol?
Commissioning should include disinfectant dose verification at design flow and minimum flow conditions, residual monitoring at defined points downstream, CT credit calculation under minimum temperature and maximum flow conditions, UV system validation testing per DVGW/NWRI protocols for UV applications, and documentation of all control system setpoints and alarms. For chlorine-based systems, confirm that chemical feed pump turndown ratio covers your full flow range without under- or overdosing at the extremes.