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当前位置:首页 > 商业/管理/HR > 信息化管理 > 滴滤池人工湿地组合工艺处理农村生活污水戴世明
/戴世明1, 白永刚2, 吴浩汀1, 吕锡武1(1.东南大学环境科学与工程系,江苏南京210096;2.江苏省环境科学研究院,江苏南京210036) : 为适应农村生活污水处理高效、低耗、管理简单的要求,研发了滴滤池/人工湿地组合工艺,考察了滴滤池的最佳运行参数以及改善系统脱氮除磷效果的措施。结果表明:采用该组合工艺处理农村生活污水是完全可行的,对COD、NH+4-N、TN、TP的平均去除率分别可达73.6%、89.5%、61.7%和78.4%,且运行费用仅为0.23元/m3。滴滤池的容积负荷宜控制在0.3~0.5kgCOD/(m3·d),并应使水力负荷4.0m3/(m2·d),适宜的回流比为2.0,布水周期为20min。 :(863)(2002AA601012-1A) : 滴滤池; 人工湿地; 农村生活污水:X703.1 :A :1000-4602(2008)07-0021-04CombinedProcessofTricklingFilterandConstructedWetlandforRuralDomesticWastewaterTreatmentDAIShi-ming1, BAIYong-gang2, WUHao-ting1, LVXi-wu1(1.Dept.ofEnvironmentalScienceandEngineering,SoutheastUniversity,Nanjing210096,China;2.JiangsuProvincialAcademyofEnvironmentalSciences,Nanjing210036,China) Abstract: Thecombinedprocessoftricklingfilterandconstructedwetlandwasdevelopedtomeettherequirementsofhigherefficiency,lowerenergyconsumption,easiermanagementinruraldomesticwastewatertreatment,andanexperimentalstudywasconductedtoinvestigatetheoptimaloperationpa-rametersoftricklingfilterandthemeasuresforimprovingphosphorusandnitrogenremoval.Theresultsshowthatitisfeasibletousethisprocessintreatingruraldomesticwastewater,andtheaverageremovalratesofCOD,NH+4-N,TNandTPare73.6%,89.5%,61.7%and78.4%respectively.Theopera-tioncostis0.23Yuan/m3.Thevolumeloading,hydraulicloading,refluxratioandsprinklingperiodofthetricklingfiltershouldbecontrolledat0.3to0.5kgCOD/(m3·d),lessthan4.0m3/(m2·d),2.0and20minrespectively. Keywords: tricklingfilter; constructedwetland; ruraldomesticwastewater ,[1~3]。,,,、、。,/,,。·21·第24卷 第7期2008年4月 中国给水排水CHINAWATERWASTEWATER Vol.24No.7Apr.20081 试验装置与方法1.1 (80),5m3/d。1。1 Fig.1 Schematicdiagramofexperimentalprocess 、、3,。2.5m,3.75m3,,0.38m2。,,。1.5m×6.8m,—;,60cm;,。,,,。1.2 5m3/d,2.5~5.5m3/(m2·d)。1。1 Tab.1 Influentqualitymg·L-1CODNH+4-NTNTPNO-3-NNO-2-N41.40~465.303.56~33.675.18~51.750.79~5.180.07~17.210.01~1.34253.3518.6228.472.998.640.681.3 pH:pH;COD:;NH+4-N:;NO-3-N:;TN:—;TP:[4];(FISH)。2 结果与分析2.1 2.1.1 2.4~3.2m3/(m2·d),COD2。2 CODFig.2 VariationofCODremovalratewithCODvolumetricloading 2,≤0.2kgCOD/(m3·d),COD75%,,COD,0.85kgCOD/(m3·d)COD60%,。,,;,,,。,0.3~0.5kgCOD/(m3·d)。2.1.2 COD3。3 CODFig.3 VariationofCODremovalratewithhydraulicloading 3,,COD·22·第24卷 第7期 中国给水排水 。2.4~4.0m3/(m2·d),。,,。4.0m3/(m2·d),COD。,,,,COD。NH+4-N(4),65%~85%。4 NH+4-NFig.4 VariationofNH+4-Nremovalratewithhydraulicloading ,。,,。4,。,COD、NH+4-N75%,4.0m3/(m2·d)。,TN15%~20%。,,;,,。FISH,1012cells/g,1010~1011cells/g,,,;109~1010cells/g,,。,。2.1.3 NH+4-N5。5 NH+4-NFig.5 VariationofNH+4-Nremovalratewithrefluxratio ,NH+4-N。1.6NH+4-N,88%。NH+4-N,C/N,NH+4-N,;,,NH+4-N。,,NH+4-N。TN6,TN2.0。TNNH+4-N,2.0。6 TNFig.6 VariationofTNremovalratewithrefluxratio2.1.4 ,20min14·23·戴世明,等:滴滤池/人工湿地组合工艺处理农村生活污水第24卷 第7期min,COD、NH+4-N75%、95%50%、65%。,1.5min,54.6m3/(m2·d)。,,,COD、NH+4-N。COD、NH+4-N,20min。2.2 2.2.1 COD,7—10COD(33.4~539.7mg/L),COD50mg/L;COD50%~100%,73.6%。2.2.2 NH+4-N,7,,NH+4-N90%,89.5%,,。2.2.3 TNTN7。7 TNFig.7 TNremovalincombinedprocess TN,,。9,,。10TN,61.7%,。2.2.4 TPTP。,,,45.7%,,TP,33.8%。9,。925TP,78.4%,TP2.2~4.5mg/L,TP0.5mg/L。2.3 0.2kW2(11),0.55、20h、0.52/(kW·h),0.23/m3。3 结论① /,COD、NH+4-N、TN、TP73.6%、89.5%、61.7%78.4%。② 0.3~0.5kgCOD/(m3·d),4.0m3/(m2·d),2.0,20min。:[1] ,,,.[J].,2007,23(23):15-18.[2] ,,,./[J].,2007,23(17):15-18.[3] ,,,.[J].,2006,(17):19-22.[4] .(4)[M].:,2002.:(1968- ), , , , , 。E-mail:smingdai@sina.com:2007-12-26·24·第24卷 第7期 中国给水排水
本文标题:滴滤池人工湿地组合工艺处理农村生活污水戴世明
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