厌氧+跌水曝气+人工湿地组合工艺处理农村生活污水
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摘要
为研发适用于我国农村的分散式污水处理装置,采用厌氧+跌水曝气+人工湿地组合工艺对农村生活污水进行处理,考察组合工艺对COD、TN、TP、NH_4~+-N、SS 5个常规指标的去除效果及对各指标的沿程去除情况。结果表明,组合工艺对COD、TN、TP、NH_4~+-N和SS的平均去除率分别为74.5%、 57.2%、 59.5%、 59.00%和91.6%。人工湿地对COD、TN、TP和NH_4~+-N的去除率最大,分别为31.0%、36.7%、43.9%和30.0%;而厌氧反应池对SS去除贡献率最大,为40.3%。该组合工艺处理农村生活污水具有良好的处理效果,且装置运行能耗低,利于推广应用。
To develop the decentralized sewage treatment devices suitable for rural areas in China, a combined process of anaerobic tank,drop-aeration and constructed wetland was developed to treat the rural domestic sewage. The removal rates of five conventional indexes(COD, TN, TP, NH_4~+-N and SS) and their changes along the process were studied. The results showed that their removal rates were 74.5%, 57.2%, 59.5%, 59.00% and91.6%, respectively. The constructed wetland had the highest removal rates of COD, TN, TP and NH_4~+-N, which were 31.0%, 36.7%, 43.9% and 30.0%, respectively, while anaerobic tank had the largest SS removal rate of 40.3%. The combined process has a good performance on the rural domestic sewage treatment with low energy consumption, which is conducive to its popularization and application.
To develop the decentralized sewage treatment devices suitable for rural areas in China, a combined process of anaerobic tank,drop-aeration and constructed wetland was developed to treat the rural domestic sewage. The removal rates of five conventional indexes(COD, TN, TP, NH_4~+-N and SS) and their changes along the process were studied. The results showed that their removal rates were 74.5%, 57.2%, 59.5%, 59.00% and91.6%, respectively. The constructed wetland had the highest removal rates of COD, TN, TP and NH_4~+-N, which were 31.0%, 36.7%, 43.9% and 30.0%, respectively, while anaerobic tank had the largest SS removal rate of 40.3%. The combined process has a good performance on the rural domestic sewage treatment with low energy consumption, which is conducive to its popularization and application.
引文
[1]陈燕.我国农村生活污水的治理[J].环境与发展,2018,30(3):76.
[2]倪宝云.农村生活污水分散式处理的技术开发与应用[J].环境与发展,2018,30(1):50-51.
[3]陈吕军.我国农村分散型污水处理技术及政策的思考[J].环境保护,2014,42(15):30-33.
[4]易齐涛,李慧,章磊,等.厌氧/生物滤池/潜流人工湿地组合工艺处理农村生活污水效果评估[J].环境工程学报,2016,10(5):2394-2400.
[5]ZHANG D Q,JINADASA K B S N,GERSBERG R M,et al.Application of constructed wetlands for wastewater treatment in tropical and subtropical regions(2000-2013)[J].Journal of Environmental Sciences,2015,30(4):30-46.
[6]王全金,朱平,宋嘉骏,等.人工湿地组合系统在污染水体治理中的应用[J].水处理技术,2013,39(2):16-21.
[7]鞠昌华,张卫东,朱琳,等.我国农村生活污水治理问题及对策研究[J].环境保护,2016,44(6):49-52.
[8]桂双林,王顺发,吴永明,等.厌氧-生物滴滤塔-人工湿地组合工艺处理农村生活污水[J].江西科学,2013,31(6):788-791.
[9]张曼雪,邓玉,倪福全.农村生活污水处理技术研究进展[J].水处理技术,2017,43(6):5-10.
[10]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[11]张亮,邹长武,田筱,等.人工湿地基质对NH+4-N吸附性能[J].环境工程学报,2014,8(1):198-202.
[12]黄杉,怀静,吴娟,等.碳源补充促进人工湿地脱氮研究进展[J].水处理技术,2018,44(1):13-16.
[13]褚润,陈年来,王小娟,等.人工湿地挺水植物脱氮效果研究[J].环境污染与防治,2017,39(8):884-889.
[14]桂双林,王顺发,吴永明,等.厌氧-生物滴滤塔-人工湿地组合工艺处理农村生活污水[J].江西科学,2013,31(6):788-791.
[15]李紫霞,唐晓丹,崔理华.3种负荷对模拟垂直流人工湿地去除氮、磷效果的影响[J].环境工程学报,2016,10(2):637-642.
[2]倪宝云.农村生活污水分散式处理的技术开发与应用[J].环境与发展,2018,30(1):50-51.
[3]陈吕军.我国农村分散型污水处理技术及政策的思考[J].环境保护,2014,42(15):30-33.
[4]易齐涛,李慧,章磊,等.厌氧/生物滤池/潜流人工湿地组合工艺处理农村生活污水效果评估[J].环境工程学报,2016,10(5):2394-2400.
[5]ZHANG D Q,JINADASA K B S N,GERSBERG R M,et al.Application of constructed wetlands for wastewater treatment in tropical and subtropical regions(2000-2013)[J].Journal of Environmental Sciences,2015,30(4):30-46.
[6]王全金,朱平,宋嘉骏,等.人工湿地组合系统在污染水体治理中的应用[J].水处理技术,2013,39(2):16-21.
[7]鞠昌华,张卫东,朱琳,等.我国农村生活污水治理问题及对策研究[J].环境保护,2016,44(6):49-52.
[8]桂双林,王顺发,吴永明,等.厌氧-生物滴滤塔-人工湿地组合工艺处理农村生活污水[J].江西科学,2013,31(6):788-791.
[9]张曼雪,邓玉,倪福全.农村生活污水处理技术研究进展[J].水处理技术,2017,43(6):5-10.
[10]国家环境保护总局.水和废水监测分析方法[M].4版.北京:中国环境科学出版社,2002.
[11]张亮,邹长武,田筱,等.人工湿地基质对NH+4-N吸附性能[J].环境工程学报,2014,8(1):198-202.
[12]黄杉,怀静,吴娟,等.碳源补充促进人工湿地脱氮研究进展[J].水处理技术,2018,44(1):13-16.
[13]褚润,陈年来,王小娟,等.人工湿地挺水植物脱氮效果研究[J].环境污染与防治,2017,39(8):884-889.
[14]桂双林,王顺发,吴永明,等.厌氧-生物滴滤塔-人工湿地组合工艺处理农村生活污水[J].江西科学,2013,31(6):788-791.
[15]李紫霞,唐晓丹,崔理华.3种负荷对模拟垂直流人工湿地去除氮、磷效果的影响[J].环境工程学报,2016,10(2):637-642.