厌氧-好氧工艺在化肥污水处理中的应用  

APPLICATION OF A/O PROCESS IN CHEMICAL FERTILIZER WASTEWATER TREATMENT

作　　者：杨瑞洪[1] 

机构地区：[1]扬州工业职业技术学院化学工程系,江苏省生态环境治理与生物技术应用研发中心,江苏扬州225127

出　　处：《水处理技术》2012年第10期126-128,132,共4页Technology of Water Treatment

摘　　要：分析了厌氧-好氧法(A/O)工艺在某化肥厂污水处理中的应用情况,稳定运行期间,进水pH在8.0～8.5,体积流量为70 m3/h,MLSS和MLVSS的质量浓度分别为6.0～8.0和4.0～6.0 g/L,污泥回流体积比50%～100%。运行结果显示,进水NH3-N的质量浓度为59.5～81.8 mg/L,出水NH3-N的质量浓度<3 mg/L,去除率为97%;进水COD在214～320 mg/L,出水COD在64.9～70.6 mg/L(经混凝过滤后为平均54.1 mg/L),平均去除率为72.5%;除油率高达95.9%,对悬浮物的去除也达到70.9%。系统出水水质完全符合设计要求,处理成本为1.1元/t。Practical application of A/O process in chemical fertilizer plant wastewater treatment was focused in this article. A/O process rtmning stability, the influent pH was 8-8.5, flow of 70 m3/h, MLSS 6.0-8.0 g/L, MLVSS 4.0-6.0 g/L, sludge reflux ratio of 50%-100%. Test results proved that： NH3-N content of the infiuent was 59.5-81.8 mg/L while effluent was lower than 3 mg/L, removal rate was 97%; COD of infiuent was 214-320 mg/L while effluent was 64.9-70.6 mg/L, 68.5 mg/L in average （after coagulation and filtration as 54.1 mg/L）, removal rate was 72.5% in average; The removal rate ofoil up to 95.9% and removal of suspended matter also reached to 70.9%; the effluent met the design requirements completely. The cost was 1.1 Yan/t.

关 键 词：化肥污水 厌氧-好氧法 生物脱氮 

分 类 号：X786[环境科学与工程—环境工程]