中文摘要：

我国城市污水处理厂污水处理规模逐年增加,剩余污泥产量大,处理处置难。污泥因为其含水率高、富含有机质及病原体,在处理处置之前,必须进行稳定化处理。厌氧消化是污泥稳定化的常用技术,污泥厌氧消化周期较长,需要对污泥进行一定的预处理,以提高细胞壁的破解效率,促进胞内有机物的溶出,大幅缩短污泥厌氧消化周期,提高污泥厌氧消化性能。本文综述了污泥厌氧消化预处理的各种主要技术的优缺点,包括生物处理、热水解、机械处理、化学氧化处理和碱处理等技术。目前研究的重点主要集中在预处理后污泥的性质变化及产甲烷性能的改善方面。

英文摘要：

The sewage treatment capacity has increased in China＇s urban sewage treatment plant year by year, which will produce the excess sludge, resulting in difficult treatment and disposal Because of its high moisture content, rich in organic matter and pathogens, the sludge must be stabilized before treatment： Anaerobic digestion is common technology for sludge stabilization, sludge anaerobic digestion cycle is longer, so that the sludge needs to be pretreated to improve the cracking efficiency of cell wall, promote dissolution of organic matters, significantly shorten the cycle of sludge anaerobic digestion, and improve the performance of anaerobic sludge digestion. The paper summarizes the advantages and disadvantages of the various technologies of sludge anaerobic digestion pretreatment, including biological treatment, thermal hydrolysis, mechanical treatment, chemical oxidation treatment and alkali treatment. At present, the research focuses on the characteristics of the sludge after pretreatment and the improvement of methane production performance.