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Position: Home > Articles > Thermophiles and their working mechanisms in degrading excess sludge:A review Chinese Journal of Applied Ecology 2012,23 (7) 2026-2030

嗜热微生物及其降解剩余污泥的机理

作  者:
杨悦;王云龙;杨尚源;梁志伟;刘国防;陈英旭
单  位:
浙江大学水环境研究院
关键词:
剩余污泥;嗜热微生物;污泥降解;胞外酶
摘  要:
活性污泥法已经被广泛应用于污水处理中.剩余污泥是此过程的副产物,其处理费用约占污水处理系统总成本的25%~60%,处理不当则会带来严重的二次污染,成为目前污泥处理研究的难点之一.利用嗜热微生物降解污泥操作方便、经济性较好且易于管理,具有良好的应用前景.本文对污泥降解中的嗜热微生物、嗜热微生物污泥降解机理以及污泥降解过程中起重要作用的嗜热蛋白酶和脂肪酶的最新研究进展进行综述,归纳总结了影响嗜热微生物降解污泥的主要影响因素,并对嗜热微生物在污泥消化方面的应用研究进行展望.
译  名:
Thermophiles and their working mechanisms in degrading excess sludge:A review
作  者:
YANG Yue,WANG Yun-long,YANG Shang-yuan,LIANG Zhi-wei,LIU Guo-fang,CHEN Ying-xu(Academy of Water Science and Environmental Engineering,Zhejing University,Hangzhou 310058,China)
关键词:
excess sludge;thermophiles;sludge degradation;extracellular enzyme.
摘  要:
Activated sludge process is widely used in treating a wide variety of wastewater,but the by-product is the large amount of excess sludge.To treat the excess sludge properly could spend 25%-60% of the total cost of wastewater treatment,while improperly treating the sludge could cause serious secondary pollution.Therefore,the reduction of excess sludge is becoming a rising challenge.Using thermophiles to degrade excess sludge is a way easy in operation and inexpensive in maintenance,being a promising method in application.This paper reviewed the recent progress in the researches of sludge-degrading thermophiles,their working mechanisms,and the enzymes from thermophiles,such as thermophilic proteolytic enzymes and thermophilic lipases which play an important role in the degradation of sludge.The factors affecting the degradation of sludge by thermophiles were summarized,and the perspectives for the further research on the application of thermophiles in digesting sludge were discussed.

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