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
Not ready to browse? Post your reverse osmosis system project and receive matched proposals directly from verified suppliers.
- 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 121-140 of 187
187 results from 187 matched providers

Noyi Environmental Equipment Manufacturing(Beijing)Co.,Ltd
NOYI Environmental Equipment Manufacturing specializes in producing high-quality FRP tanks and membrane housings. With a vast manufacturing facility in Beijing, they deliver durable water treatment products globally, supporting industries like construction and utilities with innovative solutions.

Protec Arisawa Europe S.A.
Protec-Arisawa, one of the world leaders in manufacturing of FRP Pressure vessels. A perfect synergy of operational excellence, large capacity and technology. Small industrial or large desalination projects, Protec membrane pressure vessels will reduce your total system cost. Our Team, together with you, will find the innovative solutions with advanced production technologies and product quality that will create value for your business. Side port vessels & end ports : 4”, 8”, 9”, 11”, 16”
ROYOL Water Co., Ltd.
ROYOL Water Co., Ltd. is a prominent player in the water treatment industry in China, specializing in the manufacturing of advanced water treatment equipment and providing cutting-edge technology solutions. With a focus on utilities and manufacturing sectors, the company is committed to delivering high-quality and efficient water treatment systems across the Asia-Pacific region.
Shanghai Ang Ran Industry Co., Ltd.
Shanghai Ang Ran Industry Co., Ltd. is a prominent water treatment equipment manufacturer and technology provider based in China, serving the Asia-Pacific region. The company specializes in delivering advanced solutions for manufacturing and utility sectors, focusing on treatment solutions and infrastructure systems.

Shaoxing MONA Water Purification Technology Co., Ltd.
Shaoxing MONA Water Purification Technology Co., Ltd. is a seasoned manufacturer specializing in RO water purifiers, water dispensers, and soda water dispensers. With over 27 years of expertise, they offer OEM/ODM services and are CE/CB/NSF certified, catering to global markets including Europe and North America.

Xiamen U Water System Co., Ltd.
Xiamen U Water System Co., Ltd. is a medium-sized company based in China, specializing in manufacturing and integrating water treatment equipment and systems. Serving the manufacturing and utilities industries, they focus on providing comprehensive treatment solutions and infrastructure development across the Asia-Pacific region.
YUNDA H&H TECH(TianJin) CO., LTD. (Tianjin Tianchuang Best Pure Environmental Science And Technology Co. Ltd.)
YUNDA H&H TECH(TianJin) CO., LTD. is a leading water filter manufacturer in China, certified with ISO9001 and NSF standards. Specializing in advanced filtration technologies, the company serves diverse industries with high-quality water purification solutions.
Zhejiang Tankpro Industry Co., Ltd.
Zhejiang Tankpro Industry Co., Ltd. is a leading manufacturer in China, specializing in the production of steel and plastic RO pressure water storage containers. With certifications from EU RoHS and US NSF, the company is committed to delivering high-quality products backed by professional technology from Taiwan.

Advantage Controls, LLC
Cooling Tower, Boiler, Chiller, Reverse Osmosis, Wastewater quality control equipment, chemical metering pumps, filtration, valves, probes

AQUAPHOR International OÜ
AQUAPHOR water filters. Catalog, description, specification, complete set of water filters on the AQUAPHOR official website. Region: Global website

Chemitec S.r.l.
Chemitec S.r.l. specializes in providing advanced water treatment solutions and technologies, focusing on equipment manufacturing and system integration for diverse industries such as construction, manufacturing, and utilities across Europe.

CONSEPTEC GmbH
CONSEPTEC GmbH specializes in advanced ceramic ultrafiltration and disc tube reverse osmosis membrane technologies, catering to water purification and desalination needs. Based in Germany, the company serves the utilities and energy sectors with innovative membrane solutions.
easywell water systems, inc.
Easywell Water Systems, Inc. is a leading manufacturer of reverse osmosis systems in Taiwan, specializing in water filtration and purification technologies. With a focus on quality and innovation, Easywell provides solutions for residential and commercial applications across the Asia-Pacific region.

EL-DI GmbH
EL-DI GmbH specializes in the manufacturing of high-quality electro-deionization cells for ultrapure water production. Our efficient and sustainable solutions eliminate the need for chemicals, making them ideal for diverse industrial applications.

Filcore Co., Ltd
Filcore Co., Ltd., established in 2007 in South Korea, is a leading manufacturer of advanced water treatment solutions, specializing in UF and MF membrane technologies. With a focus on innovation and quality, Filcore serves diverse sectors including utilities, manufacturing, and healthcare, aiming to provide sustainable and reliable water purification systems globally.
Hunan Keensen Technology Co., Ltd.
Hunan Keensen Technology Co., Ltd. is a leading manufacturer specializing in reverse osmosis and nanofiltration membranes, providing advanced solutions for water treatment and purification across various industries, including utilities, manufacturing, and waste management.
Italy Water S.r.l.
Italy Water S.r.l. is a specialized firm based in Italy, focusing on engineering and construction solutions for water treatment projects. With a strong presence in Europe, the company is dedicated to providing innovative and sustainable water management solutions tailored to the needs of utility sectors.

Medica Water Division
Medica Water Division specializes in ultra-pure water systems and membrane technologies, providing advanced solutions for industries requiring high-quality water treatment. Based in Italy, they serve the European market with a focus on pharmaceuticals and healthcare sectors.

Ningbo Wanhong Technologies Co., Ltd.
Ningbo Wanhong Technologies Co., Ltd. specializes in water treatment solutions, providing advanced filtration and purification systems for industrial and utility applications. With a focus on membrane technologies, the company serves the manufacturing and waste management sectors in China and the Asia-Pacific region.

Osmofilter S.L.
Osmofilter S.L. offers comprehensive water treatment solutions across various sectors, specializing in advanced filtration technologies such as reverse osmosis and ultrafiltration. Based in Spain, the company serves the European market with a focus on manufacturing, utilities, and construction industries.
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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