城北污水处理厂尾水人工湿地处理示范工程设计蒋岚岚

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蒋岚岚1, 刘 晋1, 吴 伟2, 李 美2(1.无锡市政设计研究院有限公司,江苏无锡214072;2.无锡市排水总公司,江苏无锡214026)   : 采用曝气生物强化氧化/三级表流湿地/二级潜流湿地/生物稳定塘复合型人工湿地工艺处理城镇污水处理厂尾水。介绍了工艺流程、工程设计参数、设备配置情况,并总结了设计特点。运行结果表明,该系统对COD、NH3-N、TN、TP的平均去除率分别达到了27.5%、42.5%、20.4%、29.4%,出水指标均达到或优于《城镇污水处理厂污染物排放标准》(GB18918—2002)的一级A标准。  : 尾水; 复合型人工湿地; 工程设计:X703.1  :C  :1000-4602(2009)10-0026-04DesignofConstructedWetlandforTreatmentofTailwaterfromChengbeiWastewaterTreatmentPlantJIANGLan-lan1, LIUJin1, WUWei2, LIMei2(1.WuxiMunicipalDesignandResearchInstituteCo.Ltd.,Wuxi214072,China;2.WuxiDrainageCompany,Wuxi214026,China)  Abstract: Thecombinedconstructedwetlandprocessofaeratedbiologicalenhancedoxidation,three-stagesurfaceflowwetland,two-stagesubsurfaceflowwetlandandbiologicalstabilizationpondwasusedtotreatthetailwaterfrommunicipalWWTP.Theprocessflow,designparameters,equipmentallo-cationandsoonareintroduced,andthedesigncharacteristicsaresummarized.TheoperationresultsshowthattheaverageremovalratesofCOD,NH3-N,TNandTPare27.5%,42.5%,20.4%and29.4%respectively.TheeffluentindexesreachorarebetterthanthefirstlevelAcriteriaspecifiedinDischargeStandardofPollutantsforMunicipalWastewaterTreatmentPlant(GB18918-2002).  Keywords: tailwater; combinedconstructedwetland; engineeringdesign  ,,,,,。20075,,。,、、、,[1~3],,,《》(GB18918—2002)A。1 工艺设计1.1 、·26·第25卷 第10期2009年5月            中国给水排水CHINAWATERWASTEWATER             Vol.25No.10May2009,《》(GB18918—2002)B,A。、1。1 、Tab.1 Designinfluentandeffluentmg·L-1BOD5CODSSTNNH3-N206020208(15)1105010155(8)0.51.2 ,6900m2(4545m2,2355m2),2000m3/d。,:、、、。();BOD;,SS、,;;。1。1 Fig.1 Flowchartoftreatmentprocess1.3 1.3.1 ,20m2,0.3m,6m3,。,,。1.3.2 ,,。,;CO2,,。、、。,550m2,1.80m,990m3,HRT=11.88h,25%~40%,2~4mg/L,35.92kg/d,1.48m3/min。,324m2,0.3m;,486m3,1.5m;UPVC。、,,。1.3.3 ,,、,,。,,,。、、。,。2830m2,0.2~0.3m,570m3。HRT=6.84h,0.028m3/(m2·h)。,,。、0.2~0.3m,。,,,,。0.3m,,,,。2。·27·蒋岚岚,等:城北污水处理厂尾水人工湿地处理示范工程设计第25卷 第10期2 Tab.2 Compositionofsubmergedmacrophytes%4347235 : 。1.3.4 2m,0.15m,,。、,。。960m2,2060m3,2.15m,HRT=24.72h。,HDPE。,,0.5mDN100UPVC。1.6~2.0m,、(、、),120g/m2,(、),0.50m、0.30m,70%。1.3.5 ,185m2,1.0m,185m3,HRT=2.22h,0.35m3/(m2·h)。,30%,、。1.4 3。3 Tab.3 Vegetationplantingandmanagementprogram(1)(2)、(3)(1)、(2)、2 调试运行20085。,1000m3/d,,1.48m3/min。10d,,,,,;,;(、),。20087—200914。4 、Tab.4 Influentandeffluentqualityofartificialwetlands/(mg·L-1)/(mg·L-1)/%CODNH3-NTNTPSSCODNH3-NTNTPSSCODNH3-NTNTPSS726—82524.5~51.20.3~3.58.6~14.60.26~0.748~3818.5~39.40.20~0.536.28~14.30.24~0.486~1318.4739.3219.2117.2546.13826—92532.9~52.11.3~0.38.7~17.50.33~0.489~2216~35.60.18~0.376.32~13.80.21~0.376~1229.2440.3817.3826.5946.04926—102526.3~44.40.3~0.66.2~14.50.28~0.529~2514.3~30.20.23~0.455.88~11.90.21~0.455~1326.9431.0911.5226.5041.131026—112527.7~56.40.3~0.48~18.50.18~0.497~2714.1~43.70.15~0.387.92~16.10.15~0.405~1625.8529.0622.5223.3434.081126—122524.1~52.40.4~0.96.1~17.20.16~1.089~3012.0~42.60.17~0.674.79~16.90.11~0.555~1324.7646.0323.9127.6839.161226—1817.9~48.20.3~0.64.7~14.10.28~0.429~1714.1~28.10.15~0.374.1~11.20.13~0.274~1034.9852.2924.9344.7544.13·28·第25卷 第10期              中国给水排水              4:① ,COD27.5%;NH3-N42.5%,60%;TN20.4%;TP,29.4%,44.7%。② 《》A。③ 11—1,,;,,;,。3 主要技术经济指标4545m2,3805m3,45.66h。125.66,54.35,0.062/m3。4 设计特点① 、,,。② ,,、,,。③ 2m,,、、(),。,。5 结论与建议① ///,COD、NH3-NSS。,,A。② ,、,,2.27m2/(m3·d),、,。③ ,,,。④ ,、,,。:[1] ,,,.、[J].,2008,24(10):67-69.[2] .[M].:,2007.[3] ,.[J].,2007,19(1):32-38.:(0510)82720714E-mail:jll158@163.com:2009-01-04·29·蒋岚岚,等:城北污水处理厂尾水人工湿地处理示范工程设计第25卷 第10期

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