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Process Research of Ethanol Wastewater Treatment
Abstract:
The ethanol wastewater from one certain chemical plant in Hebei province was treated by the combined process, up-flow anaerobic sludge blanket (UASB) + anoxic/oxic (AN/O) + membrane bioreactor (MBR) + reverse osmosis (RO). The results showed that COD removal rate was 70% when the UASB residence time (HRT) was 48h; and COD removal rate reach 85%, the removal rate of NH3-N was 70%. the removal rate of total phosphorus was 95% when the AN/O residence time (HRT) was 72h; the following COD removal rate was up to 90% when the MBR residence time (HRT) was 12h. The COD of the output water after treatment was lower than 30mg/L, and met the requirement of reused water.
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1497-1500
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Online since:
September 2013
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© 2013 Trans Tech Publications Ltd. All Rights Reserved
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