厌氧-好氧活性污泥法(A/O)一体化装置处理生活污水的中试研究  

Pilot-scale test on domestic waste water treatment using integrative A/O (anaerobic-aerobic sludge) equipment

作　　者：李瑾[1,2] 柴立元[1] 向仁军[2] 成应向[2] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083 [2]湖南省环境保护科学研究院,湖南长沙410004

出　　处：《中南大学学报（自然科学版）》2011年第10期2935-2940,共6页Journal of Central South University:Science and Technology

基　　金：湖南省科技计划重点项目(02CTY2003)

摘　　要：根据厌氧-好氧活性污泥法(A/O)工艺原理,设计A/O一体化污水处理装置,并利用它进行处理生活污水的中试试验。在进水流量为1 m3/h,污泥回流比为200%,总停留时间为5～8 h,水温为4～14℃的条件下,考察该装置对生活污水的处理效果。试验结果表明,装置在启动2周后开始稳定运行;当进水总磷质量浓度为4.2～12.9 mg/L,总氮质量浓度为40.0～80.0 mg/L,氨氮质量浓度为5.4～30.7 mg/L,化学需氧量(CODcr)为161.3～441.4 mg/L,五日生化需氧量(BOD5)为43.0～196.0 mg/L时,装置对总磷、总氮、氨氮、CODcr和BOD5平均去除效率分别为86.7%,69.5%,80.0%,84.7%和84.9%,出水可达《城镇污水处理厂污染物排放标准》(GB 18918—2002)二级标准。与传统污水处理工艺相比,该工艺具有占地少、耐冲击负荷能力强、运行管理简便等优点。An integrated A/O（anaerobic-aerobic sludge） equipment was designed based on the principle of A/O process and the treatment effect on domestic wastewater by the reactor was studied in pilot scale.The treatment efficiency of domestic wastewater was investigated under the conditions of influent rate of 1 m3/h,reflux ratio of 200%,total HRT（hydroli retention time） of 5-8 h and water temperature of 4-14 ℃.The results show that the equipment can operate steadily after two weeks operation.When TP,TN,NH4＋-N,CODcr and BOD5 of influent are 4.2-12.9,40.0-80.0,5.4-30.7,161.3-441.4 and 43.0-196.0 mg/L,respectively,the average removal efficiencies of TP,TN,NH4＋-N,CODcr and BOD5 are 86.7%,69.5%,80.0%,84.7% and 84.9%,respectively.The effluent can come up to the second level standard of ＂discharge standard of pollutants for municipal wastewater treatment plant＂（GB 18918—2002）.As compared with the traditional sewage treatment technologies,it has advantages of less land occupation,easy management and high capacity of resisting impact load.

关 键 词：一体化A/O装置 生活污水 除磷脱氮 

分 类 号：X703.3[环境科学与工程—环境工程]