A^(2)O生物膜工艺强化生物脱氮和污泥减量研究  

Enhanced biological nitrogen removal and sludge reduction by A^(2)O biofilm process

作　　者：王永磊[1] 刘宇雷 王尚 栗静静[1] 刘永剑 于博文 刘硕 Wang Yonglei;Liu Yulei;Wang Shang;Li Jingjing;Liu Yongjian;Yu Bowen;Liu Shuo(School of Municipal&Environmental Engineering,Shandong Jianzhu University,Ji’nan 250101,China;Water Development Planning and Design Co.,Ltd,Jinan 250100,China)

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250100 [2]水发规划设计有限公司,山东济南250100

出　　处：《工业水处理》2021年第3期72-76,共5页Industrial Water Treatment

基　　金：山东省淮河流域水利管理局规划设计院2018年科技创新项(SFSJKY2018-01)。

摘　　要：为强化生物脱氮同时降低剩余污泥产量,构建了A^(2)O复合填料生物膜工艺,并考察了其污泥减量效果以及对人工配制污水的脱氮效果。研究结果表明:经A^(2)O生物膜工艺处理后,出水平均COD、NH_(3)-N、TN分别为24.5、3.40、7.65 mg/L,平均去除率分别达到94.91%、85.74%、79.44%,污泥表观产率仅为(0.127±0.008)g/g;填料流速分离作用会促进悬浮态污泥形成生物膜,微生物的种群结构以及细胞形态发生较大变化,微生物群落物种更加丰富。In order to enhance the biological nitrogen removal and reduce the excess sludge output simultaneously,the A^(2)O composite packing biofilm process was constructed,and its sludge reduction and nitrogen removal effect on artificially configured sewage were investigated.The results showed that the average concentration of COD,NH_(3)-N and TN in the effluent treated by A^(2)O biofilm process was 24.5,3.40,7.65 mg/L,respectively,and the average remo-val rates were 94.91%,85.74%,79.44% respectively,and Yobs was only(0.127±0.008)g/g.The separation effect of packing flow rate promoted the formation of biofilm in suspended sludge,the population structure and cell morphology of microorganisms changed greatly,and the microbial population species were more abundant.

关 键 词：A^(2)O生物膜 脱氮 污泥减量 群落结构 

分 类 号：X703[环境科学与工程—环境工程]