A^(2)/O-BAF反硝化脱氮除磷双污泥系统的二次启动特性  

Performance of denitrifying-nitrogen and phosphorus-removal of A^(2)/O-BAF two-sludge system during secondary start-up

作　　者：赵鑫磊 付雪 毛佩玥 张民安 吴新波 马娟[1,2,3] 陈永志 Zhao Xinlei;Fu Xue;Mao Peiyue;Zhang Min’an;Wu Xinbo;Ma Juan;Chen Yongzhi(School of Environmental and Municipal Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China;Technical Center of Sewage Treatment Industry in Gansu,Lanzhou 730070,China;Key Laboratory of Yellow River Water Environment in Gansu,Lanzhou 730070,China)

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]甘肃省污水处理行业技术中心,甘肃兰州730070 [3]甘肃省黄河水环境重点实验室,甘肃兰州730070

出　　处：《工业水处理》2021年第9期81-85,91,共6页Industrial Water Treatment

基　　金：国家自然科学基金项目(51668033);甘肃省自然科学基金(18JR3RA126);甘肃省高等学校特色专业-环境工程(101004);甘肃省高等学校产业支撑计划项目(2020C-38);兰州交通大学天佑创新团队(TY202005)。

摘　　要：采用A^(2)/O-BAF双污泥系统,考察池容比(V厌氧∶V缺氧∶V好氧)分别为3∶5∶2和1∶3∶1时对搁置2个月的活性污泥去除污染物性能的恢复情况。结果表明,2种池容比对COD和NH_(4)^(+)-N的去除性能恢复影响较小。V厌氧∶V缺氧∶V好氧=3∶5∶2更有利于TN和PO_(4)^(3-)-P的去除性能恢复,其出水TN和PO_(4)^(3-)-P在第7天和第4天分别达到14.20 mg/L和0.42 mg/L,TN、PO_(4)^(3-)-P去除率分别为80.47%、92.02%。拟合方程分析厌氧释磷和缺/好氧吸磷的小试结果表明:V厌氧∶V缺氧∶V好氧=3∶5∶2的厌氧释磷量和缺氧吸磷量更高,且吸磷速率更快。即V厌氧∶V缺氧∶V好氧=3∶5∶2更有利于A^(2)/O-BAF系统的二次启动。The A^(2)/O-BAF two-sludge system was used to investigate the recovery of pollutant removal performance of activated sludge had been deposited for two month,when Vanaerobic∶Vhypoxia∶Vaerobic=3∶5∶2 and 1∶3∶1.The results showed that the two methods had little effect on the removal of COD and NH_(4)^(+)-N.Vanaerobic∶Vhypoxia∶Vaerobic=3∶5∶2 was more con-ducive to the recovery of the removal performance of TN and PO_(4)^(3-)-P,and the TN and PO_(4)^(3-)-P concentration of the effluent reached 14.20 mg/L and 0.42 mg/L on the 7th and 4th day respectively.The removal rates were 80.47%and 92.02%.Fitting equation analysis of anaerobic phosphorus release and anoxic/aerobic phosphorus absorption test re-sults showed that the anaerobic release of Vanaerobic∶Vhypoxia∶Vaerobic=3∶5∶2 and the phosphorus absorption of hypoxia were higher,and the phosphorus absorption rate was faster.The Vanaerobic∶Vhypoxia∶Vaerobic=3∶5∶2 was more conducive to the rapid secondary start of the A^(2)/O-BAF system.

关 键 词：A^(2)/O-BAF双污泥系统 池容比 二次启动 

分 类 号：X703.1[环境科学与工程—环境工程]