DESALINATION OF BRACKISH WATER BY ELECTRODIALYSIS

DESALINATION OF BRACKISH WATER BY ELECTRODIALYSIS
Detail:
Product: Electrodialysis equipment.
Application: Desalination of brackish water to get safe drinking water, useful in rural tracts where bore well water is brackish.
Feature: This device employs both cation and anion exchange membranes which are alternatively placed between cathode and anode. When a direct electric current is passed through the water, the ion exchange membranes set in a gel structure and allow cations and anions of the salts to pass through. As a result, desalted water is formed between the membranes, which is collected. The system can be made a continuous one. The process provides control on the water salinity by adjustment of flow rate and current input. The technique is modular.
Commercialisation: 3 demonstration plants in operation.
Economy 10,000 L/day.
Investment: Variable depending on quality of feed & plant capacity.
Equipment: Water electrodialysis plant available from CSIR licensee.
Raw materials: --------
Institute: Central Salt & Marine Chemicals Research Institute.
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