不同预处理方法促进初沉/剩余污泥厌氧发酵产沼气研究进展

系统地归纳了近年来促进污水厂初沉/剩余污泥厌氧发酵产沼气的主要处理方式，包括物理预处理方式（热预处理、超声波预处理、微波预处理、机械预处理），化学预处理方式（臭氧预处理、碱预处理）以及生物预处理方式（酶预处理）等综合应用物理、化学和生物方法的预处理方式。并指出臭氧及碱的投加对于促进初沉/剩余污泥中有机物质水解的效果和促进产沼气量、微波的非热效应提高初沉/剩余污泥产沼气效能的影响以及多种预处理方式的联合应用是未来在促进初沉/剩余污泥产沼气领域值得研究的新方向。

Research on different pre-treatment methods for improving anaerobic digestion of primary/excess sludge of biogas production

This paper summarized pre-treatment methods which would improve efficiency of biogas production of primary/excess sludge in recent years. These pre-treatment methods include physical (thermal pre-treatment，ultrasonic pre-treatment，microwave pre-treatment，mechanic pre-treatment), chemical (ozone pre-treatment, alkaline pre-treatment) and biological (enzyme pre-treatment) technologies. It is pointed out that the amount of ozone or alkaline added to primary/excess sludge is the key point of future research because it has great impacts on improving hydrolysis of organic matters and biogas production，influencing athermal effects of microwave to improve biogas production of primary/excess sludge and combined pre-treatment methods.