Treatment Technologies
Reverse Osmosis System Companies
RO system integrators for brackish, seawater, and industrial process water, skids, containerized plants, and engineered solutions.
This page is a good fit if you need:
- Reverse Osmosis (RO) or Filtration capabilities
- Suppliers with utilities sector experience
- Providers operating in China or Italy
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- Providers
- 187
- Verified
- 4
- Countries
- 28
How to choose a reverse osmosis system provider
Start with providers that clearly operate in your target geography and project footprint.
Look for industry exposure that matches your water challenge, compliance constraints, and deployment context.
Use technologies, service scope, and proof signals to narrow the list before reaching out to suppliers.
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Showing 1-20 of 187
187 results from 187 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.
LG Chem / LG Water Solutions
LG Water Solutions, a division of LG Chem, is a global leader in advanced water treatment technologies. They offer a comprehensive portfolio of solutions, including reverse osmosis membranes, ion exchange resins, and ultrafiltration membranes, to address water scarcity and quality challenges across municipal, industrial, and commercial sectors.
OSMO SISTEMI S.r.l.
OSMO SISTEMI S.r.l. is a leader in water treatment technologies, providing solutions for treating various water sources using membrane separation technologies. They offer cost-effective, reliable water treatment plants and services to diverse sectors worldwide, focusing on desalination and water pollution reduction.
ADIQUIMICA S.A.
Adiquímica S.A. is a leading water treatment company in Spain, offering comprehensive solutions for industrial water management. With over 40 years of experience, they specialize in advanced treatment technologies and monitoring systems, serving diverse industries such as manufacturing, utilities, and hospitality.
Chemipol S.A.
Chemipol S.A. is a leading manufacturer and supplier of biocides, additives, and specialty chemicals, serving diverse industries such as utilities, manufacturing, and energy production. Based in Spain, Chemipol provides advanced water treatment solutions, including desalination and wastewater treatment technologies, across Europe.
DuPont Water Solutions
DuPont Water Solutions specializes in advanced water treatment technologies, providing innovative solutions for water filtration, purification, and separation across various industries. With a global presence, they focus on enhancing water quality and sustainability.
BWT Holding GmbH
BWT Holding GmbH specializes in water treatment technologies, providing innovative solutions for filtration, purification, and water treatment plants. As a leading equipment manufacturer and technology provider, BWT serves diverse industries, ensuring high-quality water management across Europe.
Eurotrol S.p.a.
Eurotrol S.p.a., based in Italy, specializes in primary water treatment components, serving industries like construction, manufacturing, and utilities. As a medium-sized equipment manufacturer and technology provider, Eurotrol delivers solutions in infrastructure systems and treatment technologies across Europe.
Kurita Europe GmbH
Kurita Europe delivers advanced water treatment technologies and sustainable solutions for industrial and environmental efficiency
Olansi Healthcare Co.,Ltd.
Olansi Healthcare Co., Ltd. specializes in advanced water purification and industrial water treatment solutions, serving the utilities and manufacturing sectors across Europe. As a leading equipment manufacturer and technology provider, Olansi is committed to delivering innovative and sustainable water treatment technologies.
Shanghai Pullner Filtration Technology Co., LTD.
Shanghai Pullner Filtration Technology Co., LTD specializes in advanced filtration and water treatment technologies, serving industries such as construction, manufacturing, and utilities. With a focus on innovative solutions, Pullner provides equipment and systems for effective water purification and treatment.
AmeriAsia Filtration Technology Co.,Ltd.
AmeriAsia Filtration Technology Co.,Ltd. specializes in manufacturing advanced filtration equipment and providing innovative water treatment technologies, serving various industrial and utility sectors across China and the Asia-Pacific region.
Atlas Filtri S.r.l.
Atlas Filtri S.r.l. specializes in manufacturing advanced water filtration systems, offering a range of products including reverse osmosis, self-cleaning filters, and cartridge solutions. Based in Italy, they serve various industries with a focus on quality and innovation in water treatment technologies.
Shenzhen Nobana Technology Co., Ltd.
Shenzhen Nobana Technology Co., Ltd. is a prominent technology provider and equipment manufacturer based in China, serving the Asia-Pacific region. Specializing in innovative solutions for the manufacturing and utilities sectors, the company is committed to advancing water treatment technologies.
Shandong Craier Environmental Technology Co., Ltd.
Shandong Craier Environmental Technology Co., Ltd. specializes in providing advanced water treatment technologies and equipment solutions, serving various industries across China and the Asia-Pacific region.
Designing and Procuring Reverse Osmosis Systems for Industrial and Commercial Use
Reverse osmosis performance is governed by three interdependent parameters: applied pressure, membrane flux rate, and system recovery. Higher recovery reduces reject (concentrate) volume and water consumption but increases concentration polarization on the membrane surface, accelerating fouling and scaling. Commercial brackish water RO systems typically operate at 70–80% recovery, while seawater desalination systems run at 40–50% due to osmotic pressure constraints. Specifying recovery targets without also specifying concentrate disposal capacity is one of the most common design oversights in RO project procurement.
Membrane selection is equally critical. Thin-film composite (TFC) polyamide membranes dominate the market and are available in standard 8-inch diameter elements, but temperature rating, pH operating range, and chlorine tolerance vary significantly between manufacturers. Cellulose acetate membranes are an option in chlorinated feed streams where dechlorination is impractical, but offer lower rejection rates. For high-temperature industrial applications above 45°C, only specific membrane materials and element constructions maintain rated performance.
Pre-treatment design determines long-term RO reliability. Inadequate SDI (Silt Density Index) reduction ahead of the membrane array causes irreversible colloidal fouling and shortens membrane life. Chemical scaling—particularly calcium carbonate, calcium sulfate, barium sulfate, and silica—requires antiscalant programs sized to the concentrate chemistry, not the feedwater chemistry. When evaluating RO providers, require a full system design report including LSI and Stiff-Davis Index calculations for the concentrate stream at design recovery.
Frequently Asked Questions
What is a realistic membrane replacement schedule for an industrial RO system?
Well-maintained brackish water RO membranes in industrial applications typically last 5–7 years. Membrane life shortens significantly with inadequate pre-treatment (SDI above 5 or free chlorine breakthrough), biological fouling in warm climates, or high-pH cleaning cycles that degrade the polyamide active layer. Systems with poor pre-treatment or inconsistent antiscalant dosing may require membrane replacement in 2–3 years. Request the provider's historical membrane replacement intervals for comparable installations before accepting a quoted membrane lifespan.
How do I compare RO system proposals on a like-for-like basis?
Normalize all proposals to the same recovery rate, permeate flow rate, and feedwater quality assumptions. Key metrics to compare are specific energy consumption (kWh/m³ of permeate), normalized permeate flux (L/m²/h at reference conditions), and projected first-year chemical costs including antiscalant and cleaning chemicals. Proposals that omit recovery or concentrate disposal specifications cannot be meaningfully compared against one another.
What is a pressure exchanger and when is it worth specifying?
A pressure exchanger (PX) is an energy recovery device that transfers hydraulic energy from the high-pressure concentrate stream to the incoming seawater feed, reducing the load on the high-pressure pump. In seawater RO systems, PX devices can reduce specific energy consumption from 6–8 kWh/m³ down to 2–3 kWh/m³, with typical payback periods of 2–4 years at current energy prices. They are standard specification for new SWRO plants above 500 m³/day and should be evaluated for any large-scale brackish water system where energy costs are significant.
What questions should I ask about concentrate management before buying an RO system?
Ask the provider to calculate your concentrate volume at design recovery and confirm you have a viable disposal pathway: sewer discharge (check local TDS limits), evaporation pond, deep well injection, or ZLD (zero liquid discharge) crystallization. Confirm that the concentrate chemistry at design recovery does not exceed the solubility limits for calcium sulfate or silica, which are the most common irreversible scaling risks. If your local regulations cap concentrate TDS at sewer discharge, the provider must design recovery around that constraint, not the other way around.
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