water and wastewater treatment and reverse osmosis

Using a quality carbon filter to remove any organic materials and chemicals that get through the sediment pre-filter, the purity of the treated water approaches that produced by distillation. Microscopic parasites (including viruses) are usually removed by RO units, but any defect or micro-tear in the membrane will allow these organisms to pass into the clean water.

Reverse Osmosis Systems (RO) : Water pressure is used to force water molecules through a very fine membrane leaving the contaminants behind. Purified water is collected from the "clean" or permeate side of the membrane, and water containing the concentrated contaminants is flushed down the drain from the "contaminated" or concentrate side. The average RO system is a unit consisting of a sediment/chlorine pre filter, the reverse-osmosis membrane, a storage tank, and an activated-carbon post filter.
Reverse osmosis removes salt and most other inorganic material present in the water, and for that reason, RO lends itself to use in places where the drinking water is brackish (salty), contains nitrates or other dissolved minerals which are difficult to remove by other methods.

Reverse osmosis removes salt and most other inorganic material present in the water, and for that reason, RO lends itself to use