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SBR,,(,450001):+SBR:SBR,pH7,:250r/min,1min50r/min,10min,40min,CODcrSS40%65%SBR,3h1h,-,CODcr80%:;SBR;TreatmentofLandfillLeachatebySBRProcessWANGYing-hui,HEZheng-guang,LIUJian-min(ZhengzhouUniversity,HenanZhengzhou450001,China)Abstract:ThecoagulationcedimentationandSBRprocesswereusedtotreatlandfillleachatewastewater.Theresultsshowedthatthecoagulationcedimentationpretreatmentcangreatlyreducecontaminationload,theremovalratesofCODcrandSScanreach40%and65%,respectively,whenpHwas7,andmixingmethodwere250r/min,1minand50r/min,10minandsedimentationtimewas40min.InSBRtreatmentsystem,whentheaertiontimewas3handoxygenmixingtimewas1h,theremovalrateofCODcrandNH3-Nallcouldreachabove80%.Keywords:landfillleachate;SBRprocess;coagulationcedimentation:(1981-),,,E-mail:wyhn2008@yahoo.cn:,,,,,(5),,CODcrBOD,NH3-N,pH,(35),,BOD/CODcr,CODcr,,+()SBR11.1(+SBR+SBR)1,+SBR+SBRCODcrNH3-N,,,,3L1LSBRSBR,SBR,SBR,,,,,,,(DO)24mg/L,1Fig.1Flowchartofwastewaterprocess1;2;3;4;5;6;7()SBR;8;9;10;1163120103831.211Table1QualityofwastewateranddischargestandavdspHCODcr/(mgL-1)NH+4-N/(mgL-1)SS6.87.2568110405175300200300100303069,,,NH3-NTN94%99%,NH3-NN22.1,,,FeCl310%,800mL,10%FeCl3,22Table2Orthogonalpilotprogramsandtestresults/(g/L)pH/minCODcr/%SS/%10.763020.774030.785040.963050.974060.985071.163081.174091.1850250r/min1min50r/min10min10.341.220.130.121.550.126.342.731.770.530.668.727.171.532.377.834.067.7,:10%FeCl31g/L;pH7();:250r/min,1min50r/min,10min;40,SBRCODcrSS40%65%,CODcrSS2.2SBRSBR,CODcrCODcr80%,(VLR),5g/L,VSS/SS=0.76,24h,,,,,100,,20d,;2060d,;60100d,CODcr,(),;,,48h,25h,SBR,+SBR33.1CODSBRCOD2,SBR7312010383,SBR,,CODcr3000mg/L,HRT40h,CODcr85%,,CODcr,,CODcr,CODcr,,80%3553CODcr,10,72,SBRCODcr6500mg/L,10,85,CODcr85%3.23,,150mg/L300mg/L,,SBR,-,()-(1h),CODcr,0.73/0.46=1.6,115z1,,pH20,/4/215(h),SBR8313%,100mg/L,313SBRHRTVLRCODcr,CODcr80%HRT,HRT40h,1535537330221612hCODcr,151z5315kg/(m3d),73615kg/(m3d)314SBR,,,CODcr80%,,115mm,,4,,,,+SBR,SBR,SBR;(1)FeCl3,CODcrSS30%70%;(2)SBR,,,,,,;(3)SBRpH,618712CODcr[1]C.L.S.Sisinno,E.C.Olivera-Filho,M.C.Dufrayer,J.C.Morera,F.J.R.Paumgartten.ToxicityEvaluationofaMunicipalDumpLeachateUsingZebrafishAcuteTests[J].BulletinofEnvironmentalContamina2tionandToxicology,2001,64(1):107-113.[2].SBR[D].:,2001.[3],,.UASB[J].,2007,19(2):126-128.[4],,.(SBBR)SBR[J].,2002,33(6):4-6.8312010383