影响臭氧化污泥减量工艺的因子  

Factors affecting the minimization of sludge yield by ozonation process

作　　者：何圣兵[1] 薛罡[2] 王宝贞[3] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240 [2]东华大学环境科学与工程学院,上海200051 [3]哈尔滨工业大学水污染控制中心,黑龙江哈尔滨150090

出　　处：《化学工程》2006年第4期51-54,共4页Chemical Engineering(China)

基　　金：霍英东青年教师基金优选资助课题(94004);上海市自然科学基金(04ZR14010);北京市水质科学与水环境恢复工程重点实验室开放基金

摘　　要：采用臭氧作为剩余污泥的细胞裂解剂,并与淹没式生物膜工艺相结合进行污泥减量的实验研究,臭氧化后的污泥上清液回流入曝气池与污水合并处理。结果表明:在每kgMLSS臭氧投量为0.05 kg,臭氧化污泥体积流量为进水量的5%条件下,淹没式生物膜系统对SCOD和NH3-N的平均去除率分别为87.06%和84.80%,出水水质同对比实验相当;同时获得了去除1 g SCOD得到0.054 gMLSS的剩余污泥产率,与对比实验相比降低了78.4%。Combined with submerged biofilm process, ozone was used as cell lysis agent to treat excess sludge, then the ozonated supernatant was returned to the aeration tank. The results show that COD and NH3-N removals in this system are 87.06% and 84.80%, respectively. The effluent quality is comparable with that of the control test. Meanwhile, a low excess sludge yield of 0.054 g MLSS to remove lg SCOD was acquired. Compared with that of the control test, the ozonation process configuration decreases its excess sludge production by 78.4%.

关 键 词：臭氧化 污泥减量 淹没式生物膜工艺 剩余污泥产率 

分 类 号：X703[环境科学与工程—环境工程]