Performance of Treating Domestic Sewage with Coagulation-Ultrafiltration System

Abstract:

This study used coagulation - ultrafiltration technology for domestic sewage treatment, which was used widely in water supply and secondary treatment with sewage, in order to achieve high efficiency, low-cost, integrated treatment of domestic sewage treatment. This article chooses fly ash coagulant is not only simple preparation process, low cost, and with the traditional aluminum chloride and ferric chloride coagulation effect. The research results show that the coagulation can make the organic particles size distribution to move to larger particles area and significantly reduce colloidal substance. Ultrafiltration membrane system can further remove the coagulation treatment failed to completely remove polymer and part in the process of low molecular substances, to achieve high organic matter removal efficiency. The backwash of ultrafiltration membrane can make membrane flux recovery by about 80%. This system of SS can remove more than 95%, COD removal rate can reach 60% ~ 70%.

• Periodical: Applied Mechanics and Materials (Volume 737)
• Pages: 557-560
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.737.557
• Online since: March 2015
• Authors: Hui Yuan Zhong*, Guan Yi Liu, Jun Xia Li, Hao Wang
• Keywords: Coagulation r, Flux, Fly Ash Coagulant, Ultrafiltration

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