http://walthamstow.london/News/just-click-the-next-article-11/ Zero Liquid Discharge (ZLD) is a water treatment procedure that causes absolutely no water by-product. Instead, solids are produced that could be processed either as unsafe or non-hazardous waste. This could be achieved utilizing techniques like concretion as well as evaporation, where the liquids are crystallized or evaporated. Wed, 13 Nov 2019 04:12:04 UTC en