Effect of various pretreatments on the performance of nanofiltration for wastewater reuse

Publication Type:
Journal Article
Desalination and Water Treatment, 2016, 57 (16), pp. 7522 - 7530
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© 2015 Balaban Desalination Publications. All rights reserved. In the present study, we focused on integrated processes by membrane bioreactor (MBR), SMR, and pressurized microfiltration (PMF) as a pretreatment with nanofiltration (NF) as a post-treatment for wastewater reuse. The purpose of this study is to treat wastewater through MBR, MBR with powdered activated carbon (PAC), submerged microfiltration (SMF), SMF with PAC, and PMF effluent, which is mainly used in wastewater treatment, in combination with NF as a post-treatment process. MBR with PAC was used as the main pretreatment for NF, and was compared to NF combined with other pretreatments. At constant pressure in NF, MBR-NF with PAC system has higher flux and better water quality than other systems. In order to prevent the membrane fouling by organic matters, the integrated MBR with PAC process should be employed. The integrated MBR-NF with PAC process can improve water quality for wastewater reuse. Based on the wastewater reuse standards, effluent can be available for human application. Advanced treatment of wastewater by MBR-NF system with PAC was proven to be viable. This study provides understanding on treating the wastewater through advanced technology for wastewater reuse.
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