Zero Liquid Discharge (ZLD) System

1
Zero Liquid Discharge (ZLD) System
ZLD (ZERO LIQUID DISCHARGE) is the process of
water treatment in which all suspended and
dissolved solids are removed from the industrial
wastewater and leaves zero discharge at the end
of the water treatment cycle.These ZDL system are
used to purifying and recycling waste water and
make water for reuse.
2
Salient Features of ZLD System

• Bespoke component designs
• Combination of several process steps, which
  include pre and after treatment
• Maximum concentration of waste waters
• Minimal use of chemicals
• Total separation of solids
• Condensate/distillate water has salts gt 100 ppm
• Minimal residual bleed and solid matter
  quantities, hence low disposal costs
• Good condensate quality, hence can be reused as
  process water in most cases
• Good performance even at partial capacities
• Operation reliability is high

3
Key Benefits of Zero Liquid Discharge (ZLD)
System

• ZLD System improve operations and it has great
  benefits like

• Handle variations in waste contamination and flow
• Allow for required chemical volumes adjustments
• Recover around 95 of your liquid waste for reuse
• Recovers valuable ingredients from effluent
  wastewater
• Reduces process water disposal cost
• Meets environmental permit targets
• Reliable and robust solutions allows focus on
  main production business

4
Process of Zero Liquid Discharge (ZLD) System
5

• Application of Zero Liquid Discharge (ZLD) System

• Power Generation
• Oil Gas field produced water
• Pigment Industries
• Chemical Processing and Manufacture
• Textile Industries
• Pharmaceutical Industries
• Food Industries
• Industrial and Municipal Landfill
• Commercial Residential Buildings
• Dye Intermediate Industries

6

• Main Components of ZLD System

• RO
• EDR
• Evaporator
• Crystallizer
• Spray dryer

7
https//www.tradeindia.com/manufacturers/zero-liqu
id-discharge-system.html
Get more information on Zero Liquid Discharge
(ZLD) System Manufacturers
8
(No Transcript)