多级表面流人工湿地_氧化塘工艺处理微污染原水_万金保
- 安之
-
1 次阅读
-
0 次下载
-
2020-03-12 18:22:27
文档简介:
多级表面流人工湿地/氧化塘工艺处理微污染原水万金保1,兰新怡1,汤爱萍1,2,刘峰1(1.南昌大学环境与化学工程学院,江西南昌330031;2.南昌航空大学环境与化学工程学院,江西南昌330031)摘要:采用多级表面流人工湿地/氧化塘工艺处理鱼塘养殖和农业生产的微污染排水,着重考察了湿地系统的除污效果。结果表明,湿地系统的净化效果明显,在监测时段内对COD、TN、NO-3-N、NO-2-N、TP和可溶性总磷的平均去除率分别为53.7%、45.0%、34.0%、54.5%、48.7%和50.5%,系统出水水质满足水域功能区标准的要求。随着温度的升高,对COD、TN和TP的去除率逐渐增大,且在30.2~31.4℃时去除率出现了陡增。人工湿地系统进水TN负荷与TN去除率之间的相关性不强(R2=0.6174),而进水TP负荷与TP去除率之间的相关性较好(R2=0.9130)。表面流人工湿地系统具有投资少、处理效果好、运行管理简单等优点,在削减入湖污染负荷上有很好的应用前景。关键词:多级表面流人工湿地;氧化塘;微污染原水;温度中图分类号:X505文献标识码:A文章编号:1000-4602(2011)21-0011-04基金项目:“十一五”国家科技支撑计划重点项目(2007BAB23C02)CombinedProcessofMulti-surfaceFlowConstructedWetlandandOxidationPondforTreatmentofMicro-pollutedRawWaterWANJin-bao1,LANXin-yi1,TANGAi-ping1,2,LIUFeng1(1.SchoolofEnvironmentalandChemicalEngineering,NanchangUniversity,Nanchang330031,China;2.SchoolofEnvironmentalandChemicalEngineering,NanchangHangkongUniversity,Nanchang330031,China)Abstract:Thecombinedprocessofmulti-surfaceflowconstructedwetlandandoxidationpondwasusedtotreatmicro-pollutedrawwaterfromfishpondaquacultureandagriculturalproduction,andthepollutantremovaleffectoftheconstructedwetlandwasinvestigated.Theresultsshowthatthetreatmenteffectofmicro-pollutedrawwaterbywetlandsystemisverysignificant.Inthewholemonitoringperiod,theaverageremovalratesofCOD,TN,NO-3-N,NO-2-N,TPandsolubleTPare53.7%,45.0%,34.0%,54.5%,48.7%and50.5%respectively.Thequalityofthefinaleffluentmeetsthestandardofwaterenvironmentalfunctionarea.Astemperatureisincreased,theremovalratesofCOD,TNandTPareincreased.Inparticular,theirremovalratesareincreasedsharplyat30.2℃to31.4℃.Fortheconstructedwetland,thereisapoorcorrelationbetweenTNloadandremovalrate(R2=0.6174),butthereisagoodcorrelationbetweenTPloadandremovalrate(R2=0.9130).Becauseoflessinvest-ment,goodeffect,simpleoperationandmanagement,thesurfaceflowconstructedwetlandsystemhasagoodapplicationprospectinreductionofpollutionloadintothelake.·11·第27卷第21期2011年11月中国给水排水CHINAWATER&WASTEWATERVol.27No.21Nov.2011Keywords:multi-surfaceflowconstructedwetland;oxidationpond;micro
评论
发表评论