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Impact of DO Concentration on Filamentous Sludge Bulking in Treatment of Brewery Wastewater by SBR Process
Author(s): ZHAO Yi-kun, ZHOU Li, LI Ling-yun
Pages: 52-
55
Year: 2010
Issue:
9
Journal: China Environmental Protection Industry
Abstract: 溶解氧(DO)浓度是影响丝状菌污泥膨胀最重要的因素之一.选用具有代表性的啤酒废水为处理对象,研究了SBR工艺中DO浓度对丝状菌污泥膨胀的影响.结果表明:高DO浓度(4~6.5mg/L)不会导致丝状菌污泥膨胀;低DO浓度能引起丝状菌污泥膨胀,当DO浓度降低至0.4mg/L时,SVI升高到210mL/g,会导致污泥膨胀发生.低DO浓度下污泥膨胀发生后,在较高的DO浓度条件下运行一定的周期数后,污泥膨胀...
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