3铁屑过滤法预处理可生化性差的印染废水

(,050018),,COD,,BOD5,,COD,mgöL20003000mgöL,300,40%BOD510%,,1,,,,COD1,2,,,;,,,:Fe-2eFe2+E0-(Fe2+öFe)=-0.44V2H++2e2HH2()E0-(H+öH2)=0.00VO2+4H++4e2H2O()E0-(O2öH2O)=1.22VO2+2H2O+4e4OH-()E0-(O2öOH-)=0.41V,HFe2+,,;,,Fe2+Fe3+,,,Fe2+Fe3+1998210212,19982122235313,,,,,22.1,11CODö(mgL-1)BOD5ö(mgL-1)öpHBOD5öCOD1000150025040020080010120.200.27,,,,2.2,,,600mm112SBR1.;2.;3.;4.;5.;6.;7.2.3pHCODBOD5()33.1pH,(2030d),,COD,(HCl5%),,pH333L9(34),22pHömin1621052720183821112,,24,33Rj,3,3COD,pH,631199919Ki,pH621112min,COD39%3pHCODö%(1)111130(2)122235(3)133339(4)212331(5)223136(6)231232(7)313228(8)321327(9)332128K1104898994K299989495K3839910397Rj21101433.2pH,pHpH,pH2pH,[H]Fe2+,,pHCOD3,,COD,,2pH:211,12minQ,3:pH6;2113.344,,,BOD5öCOD0.353.4,(SBR)2SBR,SBR,,:73134CODö(mgL21)BOD5ö(mgL21)öCODö(mgL21)BOD5ö(mgL21)Q()ö(mgL21)öBOD5öCODCODö%ö%1129825480074326022.52000.3542.77521558403200100939219.21000.3935.3503112027540076127415.71000.3632.175499624640068724021.11000.3531.075:pH6,211,12minQSo+Vdsdtt24=QSe(1):Q,LödSo,mgöLSe,mgöLVSBR,Lt,hdsdtEckenfelder[3]:dsdt=-KXSe(2):K,Lö(mgd)XSBR,mgöL(1):Q(So-Se)VX24t=KSe(3)Q(So-Se)VX24t=Us,:Us=KSe(4):Us,kgö(kgd),:Us=K(Se-Sn)(5)(5)Se,Sn(4)(5),UsSe,44;,:Us=0.0041(Se-201.5)(6),:Us=0.0051(Se-130.6)(7)[4],UsSe(6)(7),831199919,K,:(1),Fe3+\Fe2+[5],,,(2),,,(3)SBR,,SBR,4(1)(2)pH,pH(3),,,BOD5öCOD0.200.270.35;,1.1,1995,(5):47.211,1991,12(1):4548.311:,1985115820214,11:,1990131331511,1991,11(2):138141.PretreatmentofLess2BiodegradablePrintingandDyeingWastewaterbyIronChipping2FiltrationProcessHaoRuixia,ChengShuiyuan,HuangQunxian(HebeiUniversityofScienceandTechnology,Shijiazhuang050018)Abstract:Theless2biodegradableprintinganddyeingwastewaterhasbeenpretreatedbyanironchipping2filtrationprocess.TheresultsindicatethatthepretreatmentprocesscanimprovebiodegradabilityofthewastewaterandreduceCODandcolority,resultinginthebenefittothefollow2upbiologicaltreatment.Keywords:printinganddyeingwastewater,ironchipping2filtration,pretreatment.9313