SBR法处理城市污水除磷效果及规律研究张可方

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  2 4 2003 8()JournalofGuangzhouUniversity(NaturalScienceEdition)Vol.2 No.4  Aug. 2003  :1671_4229(2003)04_0353_04SBR法处理城市污水除磷效果及规律研究张可方(, 510405) :介绍用SBR法(序批式活性污泥法)处理广州地区城市污水,研究了生物除磷效果及影响除磷的各种因素.试验结果表明:①磷的出水指标可以达到国家一级排放标准,去除率达85%~99%;②污泥龄是影响脱氮除磷的关键;③磷的厌氧释放是好氧吸收的前提条件.:序批式活性污泥法;生物除磷;污水处理:X703   :A  (SBR),.、,、、SBR.,,,,SBR.SBR.:4.5~5.5h.0.14~0.26KgBOD5/(KgMLSS·d-1),BOD55.12~13.62mg·L-1,NH4_N2.8~9.8mg·L-1.TP0.1~0.45mg·L-1.1 1.1 SBR,290mm,670mm,145mm,44.2L,42.8L.,,1.1.2 1.5,2.1 SBRFig.1 FlowdiagramandreactorforSBR1 Table1 Thestatisticsofexperimentalwastewaterquality/(mg·L-1)COD86.00~166.70BOD544.70~85.00TN19.80~26.50TP1.60~7.10NH3_N17.80~25.00NO3_N0.06NO2_NSS38.50~126.00:2002-11-10:2000([2000]285),1998(9818):(1954-),,,.2 Table2 Theoperationalprocessandparameters/h/h/h/h/hMLSS/(g·L-1)/%SVI18.01.54.02.00.53.029.50.79825.51.53.00.50.52.521.00.78434.10.82.00.80.51.821.30.611844.01.01.51.00.51.720.50.612154.0~4.51.02.00.5~1.00.52.020.00.71002 2.1 SBR3.3 SBRTable3 TreatmentefficiencyofSBR /(mg·L-1)/(mg·L-1)/%COD86.00~250.0010.70~32.2082~88BOD544.70~127.605.20~13.6085~93TN19.70~26.5013.50~15.2033~39NH3_N15.00~25.402.83~9.2353~87TP1.60~7.100.10~0.4585~99   :3.2.2 (TP)TP2.t/d2 Fig.2 Efficiencyoftotalphosphorus,1.6~7.1mg·L-1,0.1~0.45mg·L-1,85%~99%,.2.3 ,:(VFA),VFA,PHB,..(1):,BODVFA()[1].(2)()VFA:VFA,,(PHB/PHV),,.(3):,PHB/PHV,,,.(4),:,.(5):,.2.4 、,SBR,,,.3,,,.,2mg·L-1,7mg·L-1,0.5mg·L-1,354          ()           2 2~7mg·L-1,10~20mg·L-1,0.3mg·L-1.t/d3 Fig.3 Profilesofphosphorusanaerationreleaseandthedensityofinfluentandeffluent2.5 SBR,,,4.,1h,COD30~45mg·L-1,30%,7~20mg·L-1(4).t/d4 CODFig.4 ProfilesofphosphorusanaerationreleaseandCODdensity2.6 、SBR,,,,5.t/min5 、Fig.5 Profilesofphosphorusanaerationreleaseanduptakeandwantedtimeinacycle,,40min,.40~60min,.,30min,90min,0.5mg·L-1(DO).2.7 2.7.1 污泥龄(固体停留时间)的影响,BOD,,,.SBR,.17~21d,.SBR.Q=1u Q(d),u.u=Δχt Δx(/),t(d).,,.2.7.2 出水SSSBR,,,MLSS,SS.SS20mg·L-1,.2.7.3 DO浓度对磷吸收的影响,(DO),,DO,,.2.7.4 硝酸盐的影响.,,BOD/P.BOD/P20,.,BOD/P(15~17),.:①SBR355 4         :SBR,,;②;③SBR,(150mV),,[2,3].3  (1)SBR,:0.1~0.45mg·L-1,85%~99%.(2)SBR,17~21d.(3)、、,BOD/P15~17,.(4),,.(5)1h,2h.(6),.:[1] ,.(“”)[M].:,1998.ZHENGXing_can,LIYa_xin.Technologyonwastewaternutrientremoval(Seriesoftechnologyonwaterandwastewatertreatmentbytacklingninth_fivestatekeyscienceandtechnology)[M].Beijing:ChinaBuildingIndustryPress,1998.[2] .[J].,1995,13(3):3~6.LIYa_xin.Municipalwastewaternitrification/denitrificationandcalculationonbiologicalnitrogen[J].EnvironmentEngineering,1995,13(3):3~6.[3] .[J].,2000(4):366-370.LONGTeng_rui.Studyonnutrientremovalformcontinuousintermittentaerationprocess[J].ChinaEnvironmentScience,2000(4):366-370.StudyonthelawofphosphorusremovalfrommunicipalwastewaterbySequencingBatchReactor(SBR)ZHANGKe_fang(SchoolofCivilEngineering,GuangzhouUniversity,Guangzhou510405,China)Abstract:EffectandinfluencedfactorsofbiologicalphosphorusremovalwerestudiedintheexperimentoftreatingGuangzhou'smunicipalwastewaterbySBR.Theresultsshowed:(1)Effluenttargetofphosphoruscanbe0.5mg·L-1below;(2)Sludgeoldisthekeyfactorofaffectingnitrogenandphosphorusremoval;(3)ThephosphorusreleaseistheprerequisiteofexcessP_uptake.Keywords:SquencingBatchReactor;biologicalphosphorusremoval;wastewatertreatment【:】356          ()           2 

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