摘要： 某石化污水处理场一级A/O池发生非丝状菌引起的污泥膨胀，综合分析后得出引起污泥膨胀的原因为来水有机负荷太高，且含有有毒物质及溶解氧过低。通过采取控制来水水质、提高DO、控制m（C）：m（N）：m（P）、投加生物增效剂等措施，最终消除了污泥膨胀。

关键词: 非丝状菌, 污泥膨胀, 石化污水

Abstract: The sludge bulking caused by non-filamentous fungi has occurred in the first level A/O pool of a pertro-chemical wastewater treatment plant. It is known through comprehensive analysis that the causes of sludge bulking are that the influent organic load is too high,the sludge contains toxic substances and the dissolved oxygen is too low. Measures,such as controlling the influent quality,improving DO,controlling the ratio of m(C):m(N):m(P),adding bioaugmentation agent,etc. should be taken. Finally,the sludge bulking is eliminated.

Key words: non-filamentous fungi, sludge bulking, pertrochemical wastewater

中图分类号: 

• X703