Leachate Treatment

Pretreatment + Regulating Pool

Process: Two stage filtration + primary sedimentation

Filtration accuracy: 5mm, 2mm

Purpose: Reduce the sedimentation of solid in regulating pool efficiency prolong the desilting period of the regulating pool


Double layer three-phase separator: 

  1. SRT>HRT
  2. Avoid sludge loss
  3. Maintain high sludge concentration

Volume load: 12.5 – 15kg COD/m3.d                    COD removal rate: >85%

Water distribution design: 

  1. Ensure uniform water distribution
  2. Prevent scale formation in inlet water piping

SRT : Solid Retention Time

HRT: Hydraulic Retention Time

COD: Chemical Oxygen Demand

External Membrane (MBR)


  1. Effluent water is stable, free from bacteria and solid suspended matter
  2. High removal rate of organic pollutants
  3. Strong biological nitrogen removal ability


  1. External stagered flow tubular ultrafiltration membrane 
  2. Integrated modular technology in ultrafiltration 
  3. Specifically designed jet aeration device
  4. High degree automation system

Nano-Filter (NF)

Filtration level: Nanometer with molecular weight of 102-105Da


  1. Small interception of monovalent salt
  2. Discharged with the effluent
  3. Small concentration of salt

Clear water yield: 85%

Reverse Osmosis (RO)

Sprial RO membrane: High filtration level

Retention rate: >99% (to organic pollutants, monovalent salt, and divalent salt)

Operating pressure: 25-40 bar

Clean water yield: 80%

CJR activated sludge

Ordinary activated sludge

Clausthal Jet Reactor (CJR)


  1. Special nozzle structure design
  2. Longer aeration path and secondary dispersion caused by high-speed jet flow

Annular aeration: Increase oxygen utilization rate and reduce aeration amount

Microbial aggregates:

  1. Segmented and refined micro particles continously
  2. Double activity on surface area
  3. Double nitrification rate
  4. Reduce pool volume by about a half


Energy consumption: 20-30% reduction

Nitrification rate: Double up

Tank capacity: Reduce by half

Efficient aeration: Fan air volume is 30-40% lower compared to traditional system and air pressure is reduced

Overall pool capacity: Reduce by 40% compared to traditional MBR process

Floor area: Reduce by 40-50% compared to traditional MBR process