摘要
污泥厌氧消化时间长,是一个缓慢的过程,其中水解是其主要限速步骤。针对这一问题,利用超声破碎污泥絮体和细胞壁加速污泥水解过程,从而达到促进厌氧消化的目的。研究结果表明:超声处理可显著提高污泥厌氧消化性能,起主导作用的是空化泡破碎产生的水力剪切力。
Anaerobic digestion is a very slow process with a long retention time,since the hydrolysis is the main rate-limiting step.In order to solve this problem,ultrasound was utilized to promote the anaerobic digestion process by disrupting sludge flocs and microbial cell walls.Results showed that ultrasound treatment could obviously improve the anaerobic biodegradability of sludge,and the hydromechanical shear force produced by ultrasonic cavitations was responsible for sludge disintegration.
出处
《化工进展》
EI
CAS
CSCD
北大核心
2010年第11期2198-2202,共5页
Chemical Industry and Engineering Progress
基金
中国科学院知识创新工程青年人才领域前沿项目
关键词
超声
厌氧消化
污泥
ultrasound
anaerobic digestion
sludge
作者简介
徐贵华（1977-），男，博士研究生。E．mailaiinstan@qq．com。
联系人：陈少华，博士，研究员。E-mailshchen@iue．ac．cn。
