煤化工废水生化处理系统活性污泥膨胀控制及菌群迁移  

Sludge bulking control and shift of microbial community of biochemical treatment system for coal chemical industrial wastewater

作　　者：邹晓凤[1,2] 洪卫[1,2] 刘勃[1,2] 庄会栋[1,2] 常功法[1,2] 王凯[1,2] 

机构地区：[1]山东省环境保护科学研究设计院,济南250013 [2]山东省环科院环境科技有限公司,济南250100

出　　处：《环境工程学报》2016年第8期4196-4200,共5页Chinese Journal of Environmental Engineering

基　　金：山东省科技发展计划资助项目(2014GSF117025)

摘　　要：针对煤化工废水生化处理系统存在的活性污泥丝状菌膨胀问题,根据微生物营养学原理,利用活性污泥调理剂对污泥膨胀进行控制和修复,并对修复前后的活性污泥细菌菌群进行高通量测序,研究了菌群的迁移变化途径。研究结果表明,修复后的煤化工废水生化处理系统中活性污泥的SVI值明显下降,维持在85 m L·g-1左右,系统对废水中有机污染物的降解能力有所提升,COD去除率由原来的93%左右提高到96%以上。细菌菌群种类、数量和丰度都有明显改善。To deal with the problem of activated sludge filamentous bulking in a biochemical treatment system treating wastewater with coal and chemicals,activated sludge conditioner was added to control and recover the sludge bulking according to the principles of microbial nutrition. The distribution of the different bacterial floral strains isolated from bulking and recovered sludge was analyzed by using high-throughput gene sequencing technologies. The sludge value index of the recovered sludge was relatively stable at 85 m L·g- 1,the biochemical degradation of organic pollutants in water was significantly high,and the COD removal rate increased from about 93% to more than 96% above. With the addition of the conditioner,the concentration of the bacterial floral species was controlled significantly.

关 键 词：煤化工废水 污泥膨胀 活性污泥调理剂 高通量测序 菌群迁移 

分 类 号：X703[环境科学与工程—环境工程]