Zero Liquid Discharge (ZLD)

Zero Liquid Discharge (ZLD)

Zero-liquid discharge (ZLD) is a water treatment process in which all wastewater is purified and recycled; therefore, leaving zero discharge at the end of the treatment cycle. ZLD is an advanced wastewater treatment method that includes ultrafiltration, reverse osmosis, evaporation/crystallization, and fractional electrodeionization. Aquatech has an unparalleled depth of experience in ZLD, which include more than 160 installations, including stand-alone thermal/evaporative processes, membrane processes, or hybrid systems.


Applications :

  • Plant Discharge Compliance
  • Cooling Tower Blowdown
  • Flue Gas Desulphurization (FGD)
  • Gasification Wastewater
  • Coal to Chemicals (CTX) waste
  • IGCC Plant treatment

TECHNOLOGIES :

  • Falling Film Brine Concentrators
  • Forced Circulation Crystallizer
  • Horizontal Spray Film Evaporator
  • Hybrid Systems with Membrane Pre-Concentrators
  • Biological Treatment
  • Solids Waste Handling