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The Study on the Ceramic Membrane Wastewater Reuse System with Pre-Ozonation and Coagulation

A new wastewater reuse system using ozonation, coagulation and MF ceramic membrane (0.1 μm) filtration was developed. The testing was performed using secondary effluent treated at the wastewater treatment plant (WWTP) in Tokyo, Japan. The volume of treated water by the pilot study equipment is about...

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Bibliographic Details
Published in:Ozone: science & engineering 2013-07, Vol.35 (4), p.243-248
Main Authors: Noguchi, Motoharu, Aoki, Michiko, Kozono, Hideki, Kouchiwa, Hiroshi, Yoda, Yoshitake
Format: Article
Language:English
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Summary:A new wastewater reuse system using ozonation, coagulation and MF ceramic membrane (0.1 μm) filtration was developed. The testing was performed using secondary effluent treated at the wastewater treatment plant (WWTP) in Tokyo, Japan. The volume of treated water by the pilot study equipment is about 90 m 3 /day. The combination of pre-ozonation and coagulation processes achieves continuous stable membrane filtration with flux of 4m 3 /m 2 /day (167 LMH). A stable membrane filtration could be maintained by controlling ozone dosing rate depending on secondary effluent (raw water) quality fluctuation. The COD (Mn) removal ratio in raw water was 50 to 60%, and the color removal ratio satisfied 80% or higher. The quality of the treated water that was obtained from our pilot study was better than the California's standards.
ISSN:0191-9512
1547-6545
DOI:10.1080/01919512.2013.792182