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Published: 08.04.2015

Water Reuse in the Textile Sector

To address the matter, the Indian High Court mandated zero liquid discharge from the textile industry. As a result of the decision, nine existing effluent treatment plants were upgraded with a combined reverse osmosis and thermal evaporation system, enabling 96% of the effluent to be treated and returned as freshwater. 

At a cost of US$84,000,000, financed by government grants, soft loans and industry, the project accomplished a reduction in demand on the municipal water supply by 876,000m3/year. Dye salts are now recaptured from the effluent stream for industry use resulting in higher quality water for areas downstream. Though expensive, the investment is expected to have a payback period of 15 years.