厌氧序批式反应器快速形成颗粒污泥技术研究  

Rapid sludge granulation in anaerobic sequencing batch reactor

作　　者：岳秀萍[1] 李培[1] 李亚新[1] 

机构地区：[1]太原理工大学环境科学与工程学院,山西太原030024

出　　处：《化学工程》2009年第7期51-54,共4页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(50578102)

摘　　要：厌氧序批式反应器(ASBR)初次启动用厌氧消化污泥接种,比较了投加聚季铵盐(A柱)与空白对照(B柱)2个反应器的颗粒污泥形成过程。启动后以每隔2 d投加1次的投加方式向反应器中不断补充聚季铵盐,聚季铵盐投加质量与污泥质量之比取1.6 mg/g。结果表明,A柱颗粒污泥平均粒径达到0.72 mm仅需73 d,比B柱提前了25 d。A柱在启动56 d后COD负荷达到10 g/(L.d),形成的颗粒污泥平均粒径大于B柱(0.55 mm),产甲烷活性也较高。所以投加聚季铵盐能有效促进污泥颗粒化进程。Two anaerobic sequencing batch reactors （ASBR） were inoculated with anaerobically digested sludge. The reactor A （ fed with polyquatemary ammonium salt） was compared with the reactor B （control） in order to contrast the development of granular sludge. Since start-up, the polyquatemary ammonium salt was added into the reactor A at interval of once per 2 d, and the mass ratio of polyquaternary ammonium salt to sludge was 1.6 mg/g. The results show that the average diameter of granular sludge in the reactor A is 0.72 mm within 73 d, reducing granulation times by approximately 25 d compared with the reactor B. The COD loading rate achieves 10 g/（ L · d） in the reactor A after start-up for 56 d, and the average diameter of granular sludge is bigger than the reactor B （0.55 mm）. The granular sludge has higher methanogenic activity in the reactor A. Therefore adding polyquaternary ammonium salt into the ASBR can effectively enhance granulation.

关 键 词：厌氧序批式反应器 污泥颗粒化 聚季铵盐 

分 类 号：X703.1[环境科学与工程—环境工程]