D-A^2O反应器处理生活污水的污泥性状及生物相  

Characteristics and Biofacies of Activated Sludge in D-A^2O Reactor for Treatment of Domestic Sewage

作　　者：叶长兵[1] 周志明[2] 吕伟[1] 刘琴[1] 王云华 

机构地区：[1]玉溪师范学院资源环境学院,云南玉溪653100 [2]吉林建筑大学市政与环境工程学院,吉林长春130118 [3]玉溪市环境监测站,云南玉溪653100

出　　处：《中国给水排水》2014年第17期135-137,共3页China Water & Wastewater

基　　金：云南省科技厅项目(2010CD089)

摘　　要：研究了D-A2O反应器处理污水过程中活性污泥表观性状、微生物活性及后续生态沟渠的生物相等。结果表明,D-A2O反应器内形成了结构稳定的菌胶团,活性污泥外观呈棕黄色,土壤味浓厚,表观性状较为理想;D-A2O反应器内微生物活性较高,其TTC-脱氢酶活性平均可达(83±2)μg TF/(mg MLSS·h);后续生态沟渠中形成了只有水质较好时方可出现的轮虫、纤毛虫、大型水蚤、绿藻等微生物群落,这与D-A2O反应器出水水质处于一级A标准到Ⅴ类地表水水质之间相一致。The apparent characteristics and microbial activity of activated sludge in D-A^2O reactor as well as the biofacies in the subsequent eco-ditch were studied. The results indicated that the apparent characteristics of activated sludge were ideal with structural stability of zooglea, brown-yellow and strong soil taste. The microbial activity of activated sludge was high and the TTC-dehydrogenase activity reached （83 ± 2） μgTF/（ mgMLSS · h）. The microbial communities of Rotifera, Ciliates, Daphnia magna and Chlorophyta could be observed in the subsequent eco-ditch only when water quality was good, which was consistent with the fact that the effluent quality of D-A^2O reactor could be stabilized between the first level A criteria and the V grade surface water.

关 键 词：D-A^2O反应器 污泥性状指标 TTC-脱氢酶活性 生物相 

分 类 号：X799.3[环境科学与工程—环境工程]