宝钢烟气脱硫废水处理工艺的关键技术毛海亮

34　2201112　　　　　　　　　　　　　　JOURNALOFSHANGHAISHIPANDSHIPPINGRESEARCHINSTITUTEVol.34No.2Dec.2011:2011-08-26:(1970-),,,,。　　:1674-5949(2011)02-0179-03毛海亮,　褚国红,　何金平,　寇英卫(上海船舶运输科学研究所环境分所,上海200135)　:(FlueGasDesulphurization,FGD),,。,。,,。FGD。:FGD;;;:X703　　　:AKeyTechnologyofFGDWastewaterTreatmentinBaoSteelMAOHailiang,　CHUGuohong,　HEJinping,　KOUYingwei(ShanghaiShipandShippingResearchInstitute,Shanghai200135,China)Abstract:Accordingtowastewateroftheself-supplypowerplantofBaoSteel,severalkeytechnologiessuchaschromic-reduc-ing,fluorine-removalagentsetc.areemployedtoeffectivelyremoveheavymetalionslikeCr6+,refractorysubstanceslikefluorinateionsetc.Astheworkingconditiondemands,chlorine-proofmaterialisadoptedforanticorrosion.Monitoringandmeasurementofthesystemoperationrevealthatthequalityofeffluentmeetswastewaterdischargestandardandsystemopera-tionisstable.ThispracticecanbeanexampleforthedesignandimplementationofFGDwastewatertreatmenttechnologyinChina.Keywords:FGDwastewater;keytechnology;reductant;de-fluoridation0　　　　,,,,SO2NOx90%,。,《“”》,,2010,。—、(FGD),(≥95%)、、、、,,,。,,,,。,SO275%,,(FGD),SO2。(FGD)-,,,。1　FGD1.1　1　FGD≤45.5pH5～9SSmg/L53000F-mg/L≤180Cr6+mg/L≤10CL-mg/L10000Cumg/L≤2Nimg/L≤2Pbmg/L≤2Cdmg/L≤0.3Hgmg/L≤0.1Camg/L500～2000Asmg/L≤0.5CODCrmg/L≤160　　FGD,3()×350MW,24,,FGD20m3/h。1。1.2　FGD　　FGD、,:(1)FGD,;(2)FGD,Cr,Cd,Pb,Hg,Cu,Cr6+;(3)FGDF-;(4)FGDCl-,、;(5)FGD(CODcr),。2　FGD　　FGD,:,,,,,。:1.,SS53000mg/L,SS≤100mg/L。Ca(OH)2,,pH,,,,FeCl3PAM,,,SS≤100mg/L;2.Cr6+,≤10mg/L,≤0.5mg/L。,,,。,(pH10.0)。NaHSO3,pH2.0～2.5,、pH10,(pH2.0～2.5),,(pH2.0～2.5)(pH10.0),,。,20m3/h,,276。,,NaHSO3,,pH2.0～2.5,,,Cr6+,NaHSO3,,,。Cr3+,。3.。,,。pH,。pH10,。pH,pH。4.,≤180mg/L,≤10mg/L。,FGD180mg/L10mg/L。,180　　　　　　　　　　　　20112　,,CaF2。、、,、。CaF218℃16.3mg/L,7.9mg/L,。10～20mg/L。,pH12,15mg/L,。,、、,。,20mg/L,10mg/L。,pH11.5,,,。,,。,,SS。5.CODCr,≤160mg/L,≤100mg/L。,FGDCOD160mg/L100mg/L。,COD(SO2-3),COD。,,。6.≥40%。,,,,,。≥40%。7.,CL-10000mg/L。,———,CL-10000mg/L,,,,,。,,,304、316L。、。,FGD,PPH、、904L,,PPH,。3　　2　FGDpH6～9SSmg/L≤100Fmg/L≤10Crmg/L≤1.5Cr6+mg/L≤0.5Cumg/L≤1CODCrmg/L≤100　　1.,,(2),。　　2.,,,FGD。3.FGD,FGD。:[1]　.[J].,2011,27(2):65-67.[2]　.-[J].,2010,32(8):70-72.[3]　,,,.304、316L[J].,2005,33(9):13-15.181,: