Process
water

Industrial reverse osmosis

Process water treatment

Industrial reverse osmosis

A system for refining ions and minerals from water

Skid osmosis 240L per hour
Skid osmosis 240L per hour

NISKAE offers a range of industrial reverse osmosis systems that meet the highest industry standards and in a wide range of capacities from 1m3 to 400m3 per day.

Reverse osmosis is used in many sectors of activity, both municipal, commercial and industrial, to purify water by removing salts, contaminants, heavy metals and all other impurities.

Reverse osmosis is a specific technology designed to refine ions and minerals from water, especially in cases where conventional treatment systems are insufficient and for the production of process water with specific characteristics required by industries.

Reverse osmosis systems provide excellent efficiency performance considering production rates and energy consumption.

How does reverse osmosis work?

Reverse osmosis systems use a high-pressure pump applied to a concentrated, unfiltered water solution that can be seawater, brackish water, borehole water, surface water, or city water. The reverse osmosis system forces the water to pass through a semi-permeable membrane, thus retaining all dissolved salts and other substances.

The efficiency of reverse osmosis is directly linked to the filtration capacity or cut-off threshold of the osmosis membranes, i.e. 0.0001 micron. The contaminants thus removed can be dissolved ions or metal ions such as salts, chlorine, copper, calcium, magnesium, nitrates, fluoride, lead, potassium, sulfate, and many others.

The high-pressure pump that will be integrated into the reverse osmosis system will be chosen according to the quality of the water to be treated. Seawater, for example, requires pumps with higher operating pressures compared to brackish water or city water because it contains high amounts of solids and particles (TDS).

It is important to implement pretreatment upstream of the osmosis unit in order to protect the membranes and prevent premature clogging and failure.
The degradation of reverse osmosis membranes is the result of the accumulation of pollutants such as silica, iron, manganese, calcium carbonate, magnesium carbonate and microorganisms.

It is equally important to ensure the quality of the osmosis water downstream of the equipment. Free of minerals, it will potentially be necessary to remineralize the osmosis water in cases of application for water purification, or to correct its pH because reverse osmosis will have the effect of acidifying the water.
We will also monitor any possibility of bacterial growth by adding a UV ray device.

Standard features of NISKAE reverse osmosis systems

Like our water treatment plants, NISKAE engineers apply the NISKAE design standard to our entire range of reverse osmosis systems. This is how NISKAE reverse osmosis systems offer the following characteristics:

  • Flow rate from 1m3 to 400m3 per day
  • Mounting on 304 and 316 stainless steel frames
  • Boiled retention tank made of polypropylene plastic
  • DUPLEX design
  • Quick connection fittings
  • Mobile and easily movable
  • Automated operation
  • Remote control and supervision
  • Data collection and recording

NISKAE reverse osmosis systems can be custom-designed according to the need and the required water quality. This is how several modules can be added in addition:

  • Acid or anti-scale dosing unit
  • pH and ORP control unit
  • CIP chemical washing unit
  • Sand filter
  • Duplex softener
  • Osmosis water storage tank
  • Boosting pump
  • UV lamp

Field of application of NISKAE reverse osmosis systems

NISKAE offers a range of reverse osmosis systems whose performance and construction can meet a wide range of applications:

  • Deionization of seawater and brackish water
  • Production of ultra-pure water for power stations
  • Food industry
  • Pharmaceutical industry
  • Cosmetic industry
  • Water treatment industry (dyes, ceramics, etc.)
  • Leachate treatment
  • Hospital services
  • Water recycling after secondary treatments (physicochemical or biological)