OSMOTIC TREATMENT INDUSTRY
Application of SURO membrane system in a solid waste disposal site
The landfill leachate treatment plant adopts the international advanced combined process of "external MBR (two-stage biological denitrification) + two-stage nanofiltration/reverse osmosis". The treatment scale is 500m3 /d, and the treated effluent meets the national emission standard. The project adopted SURO NF30-8040 membrane elmemnt and replaced the original imported nanofiltration membrane products. Since its installation and operation in June 2018, the nanofiltration membrane system has maintained a good CODcr removal rate while operating at a lower energy consumption.
The process flow
The process flow of on-site waste osmotic treatment is shown in the figure below.
Apply product and membrane component parameters
|Model||Output/Set||Membrane Flux||Recovery Rate||System Rejection(%)||Operating Pressure|
Nanofiltration membrane water production standard discharge
After landfill leachate is treated, it meets table 3 of Domestic Garbage Landfill Pollution Control Standards (GB16889-2008) (Some pollutants)
|No.||Foulants||Permeate Concentration||No.||Foulants||Permeate Concentration|
|1||chrominance (dilution multiple)||30||4||SS(mg/L)||30|