—白永刚1, 吴浩汀2(1.江苏省环境科学研究院工程设计所,江苏南京210036;2.东南大学环境科学与工程系,江苏南京210096) : 采用滴滤池—人工湿地组合工艺处理农村生活污水,考察了其除污效果及两工艺对污染物去除的贡献率。中试结果表明,在稳定运行状态下,滴滤池对COD、氨氮、总氮和总磷去除的贡献率分别为74.5%、79.2%、33.8%、47.5%,人工湿地的则分别为25.5%、20.8%、66.2%、52.5%。滴滤池能有效完成对有机物的降解和硝化作用,人工湿地系统则能进一步去除氮、磷等污染物,两者结合可使污水中的各类污染物得到有效去除。 : 农村生活污水; 滴滤池; 人工湿地:X703 :C :1000-4602(2007)17-0055-03CombinedProcessofTricklingFilterandConstructedWetlandforTreatmentofRuralDomesticSewageBAIYong-gang1, WUHao-ting2(1.InstituteofEngineeringDesign,JiangsuProvincialAcademyofEnvironmentalSciences,Nanjing210036,China;2.DepartmentofEnvironmentalScienceandEngineering,SoutheastUniversity,Nanjing210096,China) Abstract: Thecombinedprocessoftricklingfilterandconstructedwetlandwasusedtotreattheruraldomesticsewage,andthecontaminantremovalefficiencyofthecombinedprocessandthecontribu-tingratesofeachprocessforcontaminantremovalwereinvestigated.Thefull-scaleexperimentaldatashowthatunderthesteadyrunningstate,thecontributingratesforremovalofCOD,ammonianitrogen,totalnitrogen,totalphosphorusare74.5%,79.2%,33.8%and47.5%respectivelyinthetricklingfilter,and25.5%,20.8%,66.2%and52.5%respectivelyintheconstructedwetland.Thestudyin-dicatesthatthetricklingfiltercaneffectivelycompletetheorganicsubstancedegradationandnitration,andtheconstructedwetlandsystemcanfurtherremovethenutrimentssuchasnitrogenandphosphorus.Thecombinedprocesscaneffectivelyremovethecontaminantsinruraldomesticsewage. Keywords: ruraldomesticsewage; tricklingfilter; constructedwetland ,,,,25%60%[1]。,,。,,—,,。1 工程概况1.1 —,1。·55·第23卷 第17期2007年9月 中国给水排水CHINAWATERWASTEWATER Vol.23No.17Sep.20071 Fig.1 Flowchartoftreatmentprocess 5m3/d。10h,2.0m3,1.0m,2.0m×1.0m。0.2kgBOD/(m3·d),3.75m3,2.5m,1.25m×1.2m。0.5m3/(m2·d),10m2,1.5m×6.8m。1.2 20045,200411,5—6,,6。(26℃),(18℃)。,,,:①;②()。1。1 Tab.1 Variationofwaterqualityduringexperimentperiodmg·L-1CODNH+4-NTNTPNO-3-NNO-2-N41.40~465.303.56~33.675.18~51.750.79~5.180.07~17.210.01~1.34253.3518.6228.472.998.640.682 处理效果2.1 COD2—COD。2 CODFig.2 RemovalefficiencyofCODbycombinedprocess 2,7—10,COD,COD(50mg/L),COD55%~95%,75%。,COD。2.2 NH+4-N3—NH+4-N。3 NH+4-NFig.3 RemovalefficiencyofNH+4-Nbycombinedprocess3,7,3,NH+4-N90%,。,,[2],,NH+4-N。2.3 TN4—TN。4,,TN,。·56·第23卷 第17期 中国给水排水 。10,TN,60%,。4 TNFig.4 RemovalefficiencyofTNbycombinedprocess2.4 TP5—TP。5 TPFig.5 RemovalefficiencyofTPbycombinedprocess,TP。5,,TP45.7%;,TP,33.8%。9,,TP,80%~90%,TP2.2~4.5mg/L,TP0.5mg/L。2.5 、2。2 、Tab.2 Contributionoftricklingfilterandconstructedwetlandoncontaminantremoval%CODNH+4-NTNTP74.579.233.847.525.520.866.252.5 2,CODNH+4-N,CODNH+4-N75%80%。TN,TN66.2%。、—。TP,,,,TP。3 结论与建议—,,、。,COD、、74.5%、79.2%、33.8%、47.5%,25.5%、20.8%、66.2%、52.5%。,:① ,,。② 、,。③ 。:[1] .[M].:,2000.[2] GradyJrCPL,DaiggerGT,LimHC.(2)[M]..:,2003.:(025)86562341×8011E-mail:b54981@163.com:2007-05-08·57·白永刚,等:滴滤池—人工湿地组合工艺处理农村生活污水第23卷 第17期