（1）城市污泥高效预处理技术的原理与应用

城市污泥具有成分复杂，难生物降解，含有毒性抑制物质等特点，为提高污泥厌氧发酵效率，必须对污泥进行适当的预处理。课题组研究了物理（热、蒸汽爆破）、化学（酸、碱）以及生物（酶）等各种预处理方法对污泥有机质的水解、有机质和氮、磷的释放、污泥流变学参数的影响，同时比较了各种方法对厌氧发酵产酸，产气效率的影响。揭示了预处理方法对污泥的影响机制，研发了适合于污泥高效厌氧发酵处理的预处理技术手段。

代表性成果：

[1]Liu HongBo, Zu YePin, Yin Bo, Ma Huijun, Huang Shuai, Fu Bo, Liu He*. Enhanced acid production by different pretreatments in anaerobic fermentation of waste activated sludge. Chemical Engineering Journal. 2016，284：194–201.

[2] Liu HongBo, Wang Yuanyuan, Wang Ling, Yu Tiantian, Fu Bo, Liu He. Stepwise hydrolysis to improve carbon releasing efficiency from sludge. Water Research. 119 (2017) 225-233.

[3] Liu HongBo, Wang Ling, Yin Bo, Fu Bo, Liu He*. Deep exploitation of refractory organics in anaerobic dynamic membrane bioreactor for volatile fatty acids production from sludge fermentation: performance and effect of protease catalysis.[J] Journal of Environmental Management. 2018,217:478-485.

[4] Yu Lei, Zhang Wenduo, Liu He, Wang Ganghui, Liu Hongbo. Evaluation of volatile fatty acids production and dewaterability of waste activated sludge with different thermo-chemical pretreatments[J]. International Biodeterioration & Biodegradation, 2018, 129.