Desalination of brackish water by reverse osmosis

Product/Process

Reverse osmosis equipment.

Application/Use

Desalination of brackish water (upto 10,000 pm total dissolved solids) to get safe drinking water.

Salient Features of Process/Technology

The equipment employs improved thin film composite membranes placed in a spiral configuration inside cylindrical vessel operating at 30 kg./sq.cm pressure. Thc hardness and fluoride contents are reduced by 85 % and bacterial load by 99%. The technology is modular; providing scope to enhance capacity by adding membrane elements. There is no problem of scale or corrosion. It requires electrical power, which also can be generated through solar panels.

Status of Commercialisation

Earlier RO technology based on cellulose acetate membranes has been commercialised. The improved version using thin film composite membranes is ready for commercialisation.

Minimum Economic Unit Size

30,000 L/day for a unit

Indicative cost/unit

Rs. 40 lakh

Equipment and Machinery

RO plant available from CSIR licensee.

For further information please contact

The Director
Central Salt & marine Chemicals
Research Institute, Gijubhai Badheka Marg,
Bhavnagar- 364002