Zero Liquid Discharge

zero liquid discharge 1


  • Minimizes wastewater discharge.
  • Removes many environmental issues.
  • Maximizes water recovery.
  • Recycling water on site thus decreasing the need for water intake and meeting with treatment needs.
  • Reduces dependence on local water sources.
  • Decreased volume of wastewater lowers the costs of waste management.

Zero Liquid Discharge

Water Design Technologies  conduct exclusive Wastewater treatability and feasibility studies to achieve objective of Zero Liquid Discharge. Water Design Technologies offer turnkey solution like Design, Engineering, Supply, erection & Commissioning of Zero Liquid Discharge system.

The success of a biological treatment system will depend on the detoxification of influent wastewater through robust primary chemical treatment operations, segregation of toxic effluents or by adoption of bioremediation/bio-augmentation/bio-stimulation methods. The success of a RO plant for organic wastewater recycling applications would depend upon the presence of divalent and recalcitrant organic chemicals present in the treated wastewater. The overall technical viability of the Zero Discharge schemes greatly depends on the crystallization characteristics of rejects and the specific thermal energy consumption in the Evaporation system

Our Zero Liquid Discharge Service includes following aspects:

  • Opportunities to segregate the wastewater streams
  • Establishing shock-load characteristics of the plant and carrying capacity of the individual treatment units
  • Explore opportunities to reduce pollutant load (organic and inorganic) on the ETP
  • Opportunities to improve the performance of the ETP based on the best engineering and biological principles
  • Application of bio-augmentation products to improve the performance of the ETP during extreme upset conditions
  • Opportunities to stabilize and reduce the biological sludge rejected from the ETP
  • Suggesting an upgraded ETP operating program – Maintenance and monitoring programs
  • Conceptual design of complete ZLD system with assured benefits
  • Developing a preliminary engineering plans
  • Developing a detailed techno economic feasibility report
  • Characterization of wastewater streams – flows, chemical and biological characteristics, loading pattern etc
  • Review on the biological treatability characteristics of the individual streams – establishing bench scale treatability studies and suggesting a most efficient biological system