36 4200412西安建筑科技大学学报()J.Xi’anUniv.ofArch.&Tech.(NaturalScienceEdition)Vol.36 No.4Dec.2004/吴一平,刘 莹,王旭东,彭党聪,王志盈(,710055) :/,,.,/、211,1/3./.:初沉污泥;水解产物;有机碳源;反硝化:X703 :A :1006-7930(2004)04-0421-03 ProductsfromprimarysludgefermentationasacarbonsourcefordenitrificationandphosphorusremovalWUYi-ping,LIUYing,WANGXu-dong,PENGDang-cong,WANGZhi-ying(SchoolofEnvir.&Muni.Eng.,Xi'anUniv.ofArch.&Tech.,Xi'an710055,China)Abstract:Biologicalhydrolysisandacidgenesisofprimarysludgetoacarbonsourcewhichwasusedasinnitrogen-removalprocesstodiscusstheeffectofdenitrificationandcompareitwiththeeffectsofdenitrificationwithotherkindsofcarbonsources.Theexperimentresultsshowedthatthedenitrificationrateswithcarbonfromhydrolysisandacidogenesisprocessarethreetimesandtwelvetimesasmuchasdenitrificationrateswhenusingwastewaterandfreshsludgeasthecarbonsourcerespectively.Moreover,thedenitrificationrateincreasedby1/3,comparedwiththecorrespondingvaluewithexogenouscarbonsource.Asaresult,itissafetosaythatproductsfromtheprimarysludgefermentationisthefastalternativecarbonsourceforbothdenitrificationandbiologicalphosphorusremoval.Keywords:primarysludge;hydrolysis;acidgenesis;organiccarbon;denitritication,.Barnard[1]:/(,),50mg/L·h;(,),16mg/L·h;(),5.4mg/L·h.,..,10%~15%,,.,,,.,:2003-09-15,:2004-01-15:(00JK249):(1979-),,,,.DOI:10.15986/j.1006-7930.2004.04.011,,..1 试验装置及方法1.1 4L,..JB-1.1.2 ;.、、、,NO-3-N,.,C/N6,20℃,pH7.5~8.0[2].,,.0、5、10、20、30、60、90、120minNO-3-N,,.1.3 CODCr:;NO-3-N:;MLVSS:;.1 CODCrTab.1 TheanalyseseofcomponentsofCODofsewageandprimarysludgeCODCr/%CODCr10~15CODCr40~50CODCr20~351.026.72052.2/ 3.0 35.6 23.4 11.52 结果与分析2.1 .COD.、COD[3,4].1.1,10%~15%;50%,20%,27.7%,52.2%;VFA()SCOD(COD)73.5%.、、、.2.2 、、、,3.10gMLVSS/L.NO-3-N1、2.2:(1)10min,,29.58mgNO-3-N/gVSS·h;12.38mgNO-3-N/gVSS·h,1/2;9.04mgNO-3-N/gVSS·h,1/3.(2)120min,100%,5.68mgNO-3-N/gVSS·h.50%,3.16mgNO-3-N/gVSS·h.,.(3),[3].,、.(4)2.,,,,.,1.07mgNO-3-N/gVSS·h,,2.38mgNO-3-N/gVSS·h.,,422 () 36,.,,.,C/N.(5)3.,、、、、,.1h,62.22%,84.21%,1/3.、,1/2.图3 不同碳源的脱氮率Fig.3 Theremovalrateofnitrogenwithdifferentcarbonsources1/5.(6)SCOD,C/N().,,1hSCOD43.11%,3h,SCOD80.27%.3 结 论,:①VFA()SCOD73.5%..29.58mgNO-3-N/gVSS·h.②1h,84.21%,1/3;、1,5.,.③2.38mgNO-3-N/gVSS·h,,C/N.④,COD,80.27%.:[1] ,.[M].:,1998.[2] ,,.[J].,2002,18(9):1-3.[3] ,,,.[J].,2002,():283-286.[4] .[M].:,2002.(编辑 李 斌)4234:/