纺织印染废水中TOC值和COD值的相关性林晶

TOCCOD林　晶(福州市环境监测站,福建　福州　350011)　:TOCCOD,CODTOC。TOCCOD,TOCCOD,、,CODTOC,,。:;TOC;COD;:X830　　　:B　　　:10062009(2004)05001603TheCorrelationofTOCValueandCODValueinTextileDyeingWastewaterLINJing(FuzhouEnvironmentalMonitoringStation,Fuzhou,Fujian350011,China)Abstract:TostudythecorrelationofTOCvalueandCODvalueintextiledyeingwastewaterandestablishtheircorrelativeequation.AftermathematicalstatistictestofsignificancewasundertakenforthedetectionvalueofTOCandCOD,itwasconfirmedthattherehadgoodcorrelationbetweenTOCvalueandCODvalueintextiledyeingwastewater.Becauseofthedifferenceofeachproductiveprocessandequipmentandpollutantdischarge,itshouldestablishrelativeregressionequationwhentousethecorrelativeequation.Keywords:Textiledyeingwastewater;TOC;COD;Correlation:20040218;:20040727:　(1970—),,,,,。　　,CODBOD5(、),CODBOD5,,,。TOC,10min,,TOCCOD。,TOC,TOCCOD,、,。1　TOCCOD1.1　TOC值和COD值的理论相关性CmHnOL,()CODA,()CODB,COD=CODA+CODB。:CmHnOL+kO2=mCO2+n2H2Ok=m+n4-L2,:CODA=k×Wo2=(m+n4-L2)×Wo2(1)TOC=m×Wc(2):Wo2———O2;Wc———C。—16—16　5200410　　(2)(1),:CODA=(TOCWc+n4-L2)×Wo2=Wo2Wc×TOC+(n4-L2)×Wo2(3)COD=CODA+CODB,:COD=Wo2Wc×TOC+(n4-L2)×Wo2+CODB(4)(4),,Wo2、Wc、n、LCODB,,TOCCOD。,CODB=0、Wo2=32、Wc=12,(4):COD=3212×TOC+(n4-L2)×32(5)1CODTOC,,CODTOC。1　CODTOC[1]　w(TOC)/(g·g-1)w(COD)/(g·g-1)C6H12O61800.4001.07C12H22O113420.4211.12CH3OH320.3751.50C2H5OH460.5222.09CH3COOH600.4001.07C2H5COOH740.4861.51C6H6780.9233.08C6H5OH940.7662.381.2　COD和TOC的氧化率相关性CODTOC2。2　CODTOC[1]%TOC102.7100.6102.199.599.6COD55.759.845.020.620.0TOC102.5101.199.5104.4COD2.383.767.97.7,COD,,TOC,,TOCCOD。,TOCCOD。2　2.1　监测点位和方法、,(8h)15,0.5h。CODGB/T119141989《》;TOC,TekmarTOC(Apollo9000),0mg/L～25000mg/L;:()200mL/min,680℃。2.2　监测结果TOCCOD3。3　、CODTOCmg/L　TOC(xi)COD(yi)TOC(xi)COD(yi)1144.439149.21262163.543950.91373152.441139.31114149.144352.11415101.732437.21086169.149353.71467130.835730.189896.827138.1979138.037535.91031086.628641.211611138.841748.212712130.939632.8921382.723635.19514106.335739.01081598.329745.11212.2.1　TOCCODTOCCOD,TOCx,CODy,y=bx+a,,TOCCOD。、TOCCOD1、2。—17—16　5　.TOCCOD2004101　TOCCOD2　TOCCOD2.2.2　:r=S(xy)S(xx)S(yy):S(xx)=∑ni=1(xi-x)2;S(yy)=∑ni=1(yi-y)2;S(xy)=∑ni=1(xi-x)(yi-y)。α=0.01,13(n),[2]r0.01=0.641,r=0.9519,r=0.9784。rr0.01,、CODTOC。2.2.3　,SE,Y。SE:SE=1n-2∑ni=1(yi-y)2SE:SE=(1-r2)S(yy)n-23SE=22.9,SE=3.9。2.2.4　CODx,95.4%yY′Y″。Y′=bx+a+2SE;Y″=bx+a-2SE,COD:ρ(COD′)=2.42×TOC+83.9ρ(COD″)=2.42×TOC+38.1COD:ρ(COD′)=2.37×TOC+18.6ρ(COD″)=2.37×TOC+10.83　(1)TOCCOD。COD=Wo2Wc×TOC+(n4-L2)×Wo2+CODB。,Wo2、Wc、n、LCODB,TOCCOD,。(2)、。CODTOCCOD=(2.42×TOC+61.0)±22.9,CODTOCCOD=(2.37×TOC+14.7)±3.9。(3)CODTOC。、,,,。。CODTOC,,CODTOC,(),。(4),TOC、、,,,。[][1]　.[M].:,1985.182184.[2]　,　,.[M].:,1988.20.　—18—16　5　.TOCCOD200410