一体化悬浮填料床-人工湿地处理农村污水研究  

Study on the Integrated Suspended Filler Bed-Artificial Wetland for Rural Sewage Treatment

作　　者：丁仁伟 徐兴[1] 纪荣平[1] DING Renwei;XU Xing;JI Rongping(Department of Environmental Science and Engineering,Yangzhou University,Yangzhou 225127,China)

机构地区：[1]扬州大学环境科学与工程学院,江苏扬州225127

出　　处：《水处理技术》2020年第8期116-120,共5页Technology of Water Treatment

基　　金：“十二五”农村领域国家科技支撑计划课题(2012BAJ24B06-02)。

摘　　要：采用间歇曝气一体化悬浮填料床-人工湿地组合工艺处理农村污水,研究其性能特点及运行效果。结果表明,间歇曝气一体化悬浮填料床在HRT为14h、DO的质量浓度为3.5 mg/L、曝停时间比为3:1、回流体积比为150%时出水水质较好。在此工况下,组合工艺进水COD和NH4^+-N、TN、TP的质量浓度平均分别为216.9 mg/L和33.75、51.65、3.26mg/L时,出水平均分别为5.14mg/L和1.35、6.11、0.087mg/L,平均去除率分别为97.63%和96.00%、88.18%、97.33%,水质均达GB 18918-2002的一级A标准。组合工艺采用间歇曝气,工艺简单、操作简便,运行成本低,可在农村中推广应用。The intermittent aeration integrated suspension filler bed-artificial wetland combination process was used to treat rural sewage,and its performance characteristics and operation effects were studied.The results showed that the intermittent aeration integrated suspension packed bed had better effluent quality when the HRT was 14 h,DO mass concentration was 3.5 mg/L,the ratio of aeration and stop time was 3:1 and the reflux ratio was 150%.Under this condition,when the average COD,and mass concentration of NH4^+-N,TN,TP in the combined process was 216.9 mg/L and 33.75 mg/L,51.65 mg/L,3.26 mg/L respectively,the average mass concentration in effluent was 5.14 mg/L and 1.35 mg/L,6.11 mg/L,0.087 mg/L respectively,and the average removal rate was 97.63%and 96.00%,88.18%,97.33%respectively,and the water quality reached the first level A standard of GB 18918—2002.The combined process adopts intermittent aeration,the process and operation are simple,the running cost is low,and it can be popularized and applied in the rural areas.

关 键 词：农村污水 间歇曝气 悬浮填料床 人工湿地 

分 类 号：X703.1[环境科学与工程—环境工程]