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KMID : 1094719970020020136
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Biotechnology and Bioprocess Engineering
1997 Volume.2 No. 2 p.136 ~ p.140
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Treatment of saline wastewater by the activated sludge with nonwoven fabric separation
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Moon Byung-Hyun
Heo Jong-Soo
Choi Hyoung-Sub
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Abstract
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Direct membrane separation using nonwoven fabric was applied to saline wastewater treatment by an activated sludge process. A nonwoven fabric module was immersed in an aeration tank. The part of treated was filtered through the module by suction and the rest of that was separated by a settlingtank. Various F/M ratios and salt concentrations were applied to investigate stable flux as well as pollutant removal. The pollutant removal efficiencies of nonwoven fabric separation was not affected by F/M ratios and salt concentrations and was higher than that of settling tank separation. The decline in flux was seemed to be caused by the biofilm on nonwoven fabricsurface
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KEYWORD
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direct membrane separation, saline wastewater teeatment, nonwoven fabric
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