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hydrogen ions can attach to water and formIt pollutes water bodies of the location and also infects the aquifers. The implications of Zero Liquid Discharge (ZLD) norms, if applied, will certainly influence the development of textile market. While the draft policy is indicated to require the textile sector to tidy up its act, the “Zero Liquid Discharge” implies a complete stop to the release of any toxins. But it has been observed that even when effluents are treated in a ZLD plant, sludge remains and needs to be dumped. According to a price quote, a textile device that generates 100 tonnes of effluents will wind up creating 500 tonnes of effluents if they lower the Chemical Oxygen Demand to 200 mg/litre and that will certainly produce the problem of disposing the sludge. Chemical Oxygen Demand or COD test is frequently utilized to indirectly determine the quantity of natural compounds in water.