Zero Liquid Discharge

What is ZLD?

Zero Liquid discharge refers to installation of facilities and system which will enable any industrial effluent for absolute recycling of permeate and converting solute (dissolved organic and in-organic compounds/salts) into residue in the solid form by adopting method of concentration and thermal evaporation. ZLD will be recognized and certified based on two broad parameters that is, water consumption versus waste water re-used or recycled (permeate) and corresponding solids recovered (percent total dissolved / suspended solids in effluents).

How to Achieve ZLD
  1. Effluent treatment plant
  2. UF followed by three stage RO
  3. Multi Effect Evaporator (MEE)