Zero Liquid Discharge: a solution to zero discharge of hazardous chemicals?

摘要

THE use of hazardous chemicals in the textile & apparel wet processing has been under the scanner of NGOs, fashion and outdoor brands & retailers, governments (in some countries) and even consumers who are now getting interested in 'green' or 'organic' products - though this is largely focused on the food that they buy! We know that these hazardous chemicals, that are used in a fabric mill or a dyehouse or a garment laundry or a printing unit, do not all remain on the final product - the fabric or garment - but get washed out and drained through the effluent discharged from the production factory into nearby river bodies, municipal sewers or groundwater. It is estimated that the textile industry is the third most water-polluting industry, after paper and leather.