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1,2,1,1,1(1.,530004;2.,530022)、、,。、、[1-3]。,,。,。,、、、、[4]。,:2010-03-10;:2010-05-04:、pH、。,,CODCr70%。0.15m3/(m2·d),NH3-N92%。pH8,CODCr、NH3-N、TP80%、84%、82%。22.5~45g[CODCr]/(m2·d),CODCr80%。52.5g[CODCr]/(m2·d),CODCrNH3-N。0.05~0.2m3/(m2·d)、pH7~8、22.5~45g[CODCr]/(m2·d),CODCr、NH3-N、TP。:;;:X703.1;X799.3:A:%1009-2455(2010)04-0047-03Purificationofdomesticsewagebyvertical-flowconstructedwetlandLIANGJi1,ZHOUYun-xin2,XIANPing1,WUQi1,XIONGZuo-fang1(1.SchoolofEnvironment,GuangxiUniversity,Nanning530004,China;2.EnvironmentalProtectionAgencyofNanning,Nanning530022,China)Abstract:Theeffectofvertical-flowconstructedwetlandunderdifferenthydraulicloadingrates,pHvalueandorganicloadingratesondomesticsewagepurificationwasinvestigated.Theresultsshowedthat,underlowerhydraulicloadingcondition,theremovalrateofCODCrmaintainedupto70%.Whenthehydraulicloadingratewas0.15m3/(m2·d),theremovalrateofNH3-Nreachedthehighest—92%.Thebestpurificationeffectofthevertical-flowconstructedwetlandwasobtainedwhenthepHvaluewas8.TheremovalratesofCODCr,NH3-N,TPwere80%,84%and82%respectively.TheremovalrateofCODCrwaskeptabove80%atorganicloadingrateinrangeof22.5-45g[CODCr]/(m2·d).Whentheorganicloadingrateincreasedto52.5g[CODCr]/(m2·d),theCODCrandNH3-Nremovalefficiencydecreasedrapidly.Therefore,thesuitableinfluentconditionforthevertical-flowconstructedwetlandwere:thehydraulicloadingratewas0.05-0.2m3/(m2·d),theinfluentpHvaluewas7-8,theorganicloadingratewas22.5-45g[CODCr]/(m2·d),andtheremovalefficiencyofCODCr,NH3-NandTPwereallsatisfactoryundertheabovecondition.Keywords:vertical-flowconstructedwetland;domesticsewage;influencingfactorINDUSTRIALWATER&WASTEWATERVol.41No.4Aug.,2010·47·INDUSTRIALWATER&WASTEWATERVol.41No.4Aug.,2010。,、,,,,[5]。,。、pH、,。11.11。Ф500mm×1200mm。、、、,200mm。。,。1.2、NH4Cl、K2HPO4,pH=6.1~8.0,ρ(CODCr)=107~262mg/L,ρ(NH3-N)=31.1~54.2mg/L,ρ(TP)=4.3~7.7mg/L。1.33———、pH、,,CODCr、NH3-N、TP,。1.4COD;pH;;TP。22.12。2,。,。0.05~0.2m3/(m2·d),CODCr70%,0.4m3/(m2·d),CODCr。,,。NH3-N,0.15m3/(m2·d),NH3-N,92%。,,,,NH3-N,0.15m3/(m2·d),,,,,,,NH3-N。TP,TP,,TP90%,TP、。2.2pHpH3。3,pH,pH。pH8,CODCr,80%。pH9,CODCr。2Fig.2Effectofhydraulicloadingrateonpollutantsremoval00.10.20.30.40.5/(m3·m-2·d-1)/%1009080706050CODCrNH3-NTP·48·,,,:pH7~8,pH。pHNH3-N、TP,,NH3-N、TP;pH8,NH3-N、TP,84%82%。,、,[6]。2.34。4,22.5~45g[CODCr]/(m2·d),CODCr,80%,52.5g[CODCr]/(m2·d),CODCr。,,,。,,。NH3-N,37.5g[CODCr]/(m2·d),NH3-N92%。NH3-N-[7],。,,-。TP,,TP,,TP、。3(1),CODCr、NH3-N、TP;,CODCr、NH3-N。,0.05~0.2m3/(m2·d)。(2)(pH=7~8),,。(3),,,。,CODCrNH3-N。TP,TP、。22.5~45g[CODCr]/(m2·d)。:[1].[J].,1995,16(3):83-86.[2],,.[J].,2001,14(4):20-23.[3],,,.[J].,2009,40(1):5-10.[4].[J].,2008,24(6):69-73.[5],,,.[J].,2002,3(7):13-17.[6].[D].:,2005.[7],,,.[J].,1999,19(3):323-327.:(1984-),,,,,()liangji002@163.com。3pHFig.3EffectofinfluentpHvalueonpollutantsremoval45678910pH/%1009080706050CODCrNH3-NTP4Fig.4Effectoforganicloadingrateonpollutantsremoval102030405060/(g[CODCr]·m-2·d-1)/%1009080706050CODCrNH3-NTP·49·
本文标题:垂直流人工湿地净化生活污水的试验研究梁骥
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