【摘要】 介绍了以洗浴废水为主要原水的中水回用工程中控制污泥膨胀的情况。经过分析认为,原水中氮、磷等营养物质平衡遭到破坏是导致污染高粘性膨胀的主要原因,并采取了投加混凝剂和营养物质、排泥以及增加水力停留时间等措施,从而有效控制污泥膨胀。更多还原

【Abstract】 This article introduces a case of how to control the activated sludge bulking in Membrane Bio-Reactor,which is operated for treatment of bathing wastewater.After analyzing the information which are collected from the operation condition,we come into a conclusion that the balance of the nutrition broken is the primary reason of activated sludge bulking.At last we improve the condition of activated sludge bulking successfully by taking the following measures.First,add urea and nutrition which contains nitrogen into the raw water;second,periodical discharge of bulking sludge;at last,take a longer HRT.更多还原