【摘要】 污泥膨胀现象在全球污水处理厂普遍存在,已成为制约活性污泥工艺发展的重大难题之一。本文总结了丝状细菌研究现状;重点阐述了当前引起污泥膨胀的主要机理;说明了基于这些机理的选择器控制理论;给出了主要的选择器类型。对当前关于污泥膨胀的研究进展和方向,分别从微生物和数学模型2个方面进行了讨论,最后,提出了一系列亟待解决的问题。更多还原

【Abstract】 Bulking sludge is a worldwide problem and is also a major factor to limit the development of activated sludge processes.Situation regarding the study of filamentous microorganisms is described and four general theories explaining the occurrence of bulking sludge are summarized in the article.Based on these general theories,a biological selector is discussed and the selector types are presented.The development situation and the future trend of bulking sludge control technique are also described,mainly based on the theories of microbiology and mathematic modeling.Finally,some further research topics to be urgently solved are introduced in the article.更多还原