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China anaerobic sludge membrane filter press
Feb 09, 2018

Membrane filter press is general tool for sludge dewatering in wastewater treatment industry. Anaerobic digestion is one of popular sludge treatment technologies, and mainly used to decompose the organics. The sludge will be disposed without oxygen, and the organic elements will be broken down to CH4, CO2, H2O and H2S. After anaerobic digestion process, the sludge will be more stable. The most important, it's good for the sludge reduction. Then will be dewatered by membrane filter press for further process. 

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Digested sludge is a complicated processes. The anaerobic processes include two types: manual digestion and nature digestion. The sludge digested is viscous, if use chamber filter press, the filter cloth will be blocked and the final cake moisture is much higher, thus will increase the final sludge capacity and transportation freight, so normally use membrane filter press to filter. For membrane filter press, it can squeeze sludge cakes in order get the lowest moisture.  


Before sludge dewatering, the wastewater will be pretreated by ferric salt and PAM, so that improve the solid percentage is the sewage. Our high pressure membrane filter press can endure 1.2 to 1.5 MPa squeezing pressure. And after automatic filter press treatment, the final cake can be around 50%, so that can easily realize sludge dry stack. Pls contact us to different chamber filter press and membrane filter press. 


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