城镇生活污水再利用的技术方法研究

,(,210098):,,,,,:;;:X703:A:100326504(2003)20001203:(50109001);(2001400743):(1966),,,,1999401.1t/a,203.8t,,,[1]200020%,,,,,,,NP,,,,,11.1(1),,,,,120L/d,80%,100L/d,5050000m3/d,13500m3/hm2,1352hm2(2),[2],COD21.9kg/a;(TP)0.62kg/a;(TN)3.65kg/a,50,1a1095kgCOD,31kg182.5kg,,,19931997,,80cm,,[3]3,,,,,1a5300,10(3)150m3/d,7.5,22.5,75m3/d(0.5/m3,1.34/m3),150m3/d,3750,7.5/d(0.05/m3),1/451,©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(1),,,,,,,,(2)2500t/a,30%40%40%,1000t,,2/3,75%,,NP,,,,,1.3,,,,,,,,1002003,,,NP,,,,,,,,,2,,,,,,,,,,,,,1,,,,,,,,13(1),,,(LAS),,,,,,,,,LAS(2),,,,,,,,(3),NO3-,NO3-,,NO3-,,,NO3-22620036©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.中国科技论文在线:(1)(),80%,,,,,(2),,,,,,,26,957hm2,7400t[4](3),,,,,,,,,,,,,,,(4),,[56]8000m23m,,,,,150,1000t,,(),,,,[][1],,NihalJayawardane.-.[M].:,2002,5963.[2],.[J].,2001,15(2):3338.[3],,,.[J].,1997,18(3):2325.[4].[M].:,1994.[5]CooperP,Micheme,MC.Constructedwetlandsandreed-beds:maturetechnologyforthetreatmentofwastewaterfromsmallpopulations[J].WaterandEnvironmentalMan2agement,2001,15(2):7985.[6]ErikssonPG,WeisnerSEB.Nitrogenremovalinawastewaterreservoir:theimportanceofdenitrificationbyepiphyticbiofilmsonsubmersedvegetation[J].JournalEn2vironmentalQuality,1997,26:905910.[7],.[J].,2000(3):3237.(:2003-03-02)TheStudyonReuseMethodofDomesticSewageJIANGCui-ling,DINGXian-rong(CollegeofWaterResourceandEnvironment,HehaiUniversity,Nanjing210098)Abstract:Thelowtreatmentrateofdomesticsewagehascausedseriouspollutionforsurfacewater,whichcanbealleviatedbyawaythatcollectingthesewageandthentransportingbypipetothefieldstoirrigatecrops.Thereuseofwastewaterwillyieldnotableenvironmentalbenefitsandeconomicgainsbyeconomizingwaterandfertilizer.Thepollutionrisksareanalyzedandpreventionmeasuresarediscussed,andthemethodstopurifyandreusesewageinwinterandfloodseasonarealsoproposed.Keywords:domesticsewage;sewagereuse;sewageirrigation3,©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.中国科技论文在线