Reverse Osmosis

Unit for separation of soluble salts from water in order to obtain water with low conductivity.

The phenomenon of osmosis occurs when pure water flows from a dilute saline solution through a membrane into a higher concentrated saline solution.

A semi-permeable membrane is placed between two compartments. “Semi-permeable” means that the membrane is permeable to some species, and not permeable to others. Assume that this membrane is permeable to water, but not to salt. Then, place a salt solution in one compartment and pure water in the other compartment. The membrane will allow water to permeate through it to either side. But salt cannot pass through the membrane.

As a fundamental rule of nature, this system will try to reach equilibrium. That is, it will try to reach the same concentration on both sides of the membrane. The only possible way to reach equilibrium is for water to pass from the pure water compartment to the salt-containing compartment, to dilute the salt solution.

If a force is applied to this column of water, the direction of water flow through the membrane can be reversed. This is the basis of the term reverse osmosis. Note that this reversed flow produces a pure water from the salt solution, since the membrane is not permeable to salt.

This Technology is applicable to the following fields

ALUMINUM

STEEL/ GALVANIZING/S.S.

ALUM

CANS

STEEL

RINSEGUARD

Analysis and maintenance of contaminant concentrations in rinses from degreasing, pickling, chromate, phosphate, etc. through conductivity, pH measurements and automatic introduction of fresh water.

ALUMINUM

ALUM

CANS

STEEL/ GALVANIZING/S.S.

STEEL

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