Reverse Osmosis Water Treatment

Water purification using a semi-permeable membrane to remove water impurities.

Water purification using a semi-permeable membrane to remove water impurities.

What is Reverse Osmosis?

Reverse osmosis (RO) is a technology that is used to separate and remove a large majority of water impurities using a semi-permeable membrane. It can eradicate up to 99%+ of the dissolved solids, particles, colloids, organics, bacteria and pyrogens from the feed water (although it cannot be relied upon to remove 100% of the bacteria or viruses).

How does Reverse Osmosis work?

As the feed water enters the semi-permeable membrane under pressure, the water molecules pass through, while the contaminants are held back and discharged through a reject stream. This is sometimes fed back into the feed water supply to be recycled, helping to save water.

Veolia's reverse osmosis water systems are regularly used for generating pure water for decontamination, renal dialysis, water recovery, utility feed water and process water production.

Benefits of Reverse Osmosis water treatment

  • Ensures the control of potential microbial contamination
  • Produces pure water from 10l/h to 30m3/h with a low footprint
  • Reduces operation requirement

High-quality ingredient water for food & beverage manufacturers

Purified water treatment for the pharmaceutical, generics, healthcare and biotechnology markets.

Range of hygienic water treatment solutions for the food and beverage industries.

Range of compact, heat-sanitisable reverse osmosis systems to meet lab decontamination guidelines.

Water Treatment Applications

We design and manage innovative solutions for a wide range of water and wastewater treatment applications.

Systems designed to supply healthcare water to sterilise instruments in decontamination departments (CSSD).

Pure water products to meet international renal dialysis water treatment guidelines.

High-quality water systems for production, process and manufacturing uses.

Total water management solutions for process and wastewater recovery and recycling.


Our teams of industry experts work with you to supply the water technologies and services you need to overcome challenges in your market.

Delivering compliant process and waste to recovery water for pharmaceutical/cosmetic needs.

Providing water treatment solutions for healthcare applications.

Delivering laboratory water purification systems and solutions for research, science and clinical environments.

Delivering ingredient water and waste to resource services in the food and beverage industry.

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