化纤浆粕废水治理技术研究与工程应用宋桂苓

66Vol.6,No.620056TechniquesandEquipmentforEnvironmentalPollutionControlJun.2005宋桂苓(,272025)　　A、B,---,pH12,COD1.2×104mg/L,SS1.22×103mg/L,3000,《》(GB8978-1996),。　　A、B　　X703.1　　　A　　　1008-9241(2005)06-0051-03TechnicalstudyandengineeringapplicationofchemicalfiberpulpwastewatertreatmentSongGuiling(DepartmentofChemistry,JiningTeachers’College,Jining272025)Abstract　WiththeapplicationofreagentsAandB,andwiththeapplicationof4steptreatmenttechnolo-gyofneutralizationaciddisintegration-innerelectrolysis-flocculateandprecipitation-biologicaloxidation,thecot-tonpulpwastewaterfromachemicalfiberplantwiththechrominanceof3000andthepH12,COD1.2×104mg/L,SS1.22×103mg/L,weretreatedsynthetically.Eachtargetoftheeffluentcanmeetthegradetwostand-ardintheoveralldischargestandardforwastewaterofthenationasGB8978-96.Thetreatmentfeeforeachtonofwastewaterisreducedgreatly.Keywords　cottonpulpwastewater;reagentA,B;innerelectrolysis:((2001)17):2004-11-21;:2005-01-31:(1949～),,,,。E-mail:[e-mail]1　　,,。-[1],1.60～1.80/m3,2.00/m3,,。,(PAC)、(PAM);,,,,(10h)、。A[2]()(PAC),B(CaO)CaO(PAM),---,6000m3/d,1,,。2　2.1　,3:①,,3000,COD1.2×104mg/L,BOD53.6×103mg/L,SS1.22×103mg/L,pH12,1200m3/d;②,8,COD238mg/L,BOD598mg/L,SS200mg/L,pH1.5～5.5,4080m3/d;③,4,COD132mg/L,BOD551mg/L,SS185mg/L,pH2,[Zn2+]248mg/L,12600m3/d。2.2　pH=1.30pH=12.36、6COD=10059mg/L、3000,1。1　Table1　ResultofneutralizingacidolysisV∶VpH()COD(mg/L)COD(%)1∶23.65————1∶2.52.78102423742968201∶41.935121681211720.6,pH≤3,,pH=2～3,COD20%。,,pH≤1.5,V∶V=1∶4。2.3　2.3.1　试剂A法A:(1)pH2～3A、0.5h,pH6,[Fen+],pH,2。2　pHTable2　TherelationshipbetweenpHvaluesandironconsumptionpH22.52.753(kg/m3)0.330.130.O90.06(/m3)0.1650.0650.0450.03(2)B,pH10～11[3],,,。2.3.2　PAC法CaOpH11,PACPAM。23。3　PACATable3　EffectsofflocculationandprecipitationwiththePACmethodandreagentAmethod(kg/m3)CaOPACPAMFeCOD(mg/L)BOD5(mg/L)SS(mg/L)[Zn2+](mg/L)()pH18005605331895122.5～3PAC1.240.550.006143640843292008.5A0.830.091100410362515010～112.4　2pH7～8,,,,PAC10h,A6～8h,1/3。3　3.1　,1。3.2　:pH≤1.5、pH12、V∶V=1∶4,,pHpH2.5～3.0,3h,。1　Fig.1　Flowdiagramofthetechnology:,,130m3,0.5h。A,:Fe+2H+=Fe2++H2↑。,pH,pH=6。526::0.5hBpH=10～11(pH),Fe(OH)3、Fe(OH)2,Zn2+、S2-、SO2-4、Mg2+、Ca2+Zn(OH)2、ZnS、CaSO4、Mg(OH)2,、、,,,。A、B、、,,。,0.5h。pH212∶1()pH=7～8。:COD=1200mg/L,BOD5、SS500mg/L,100,[Zn2+]5mg/L,6～8h,2h,。:,。3.3　,4。4　Table4　TreatmenteffectofeveryunitCOD(mg/L)BOD5(mg/L)SS(mg/L)[Zn2+](mg/L)pH()1.2×1043.6×1031.22×1031230001.8×1035605331892.5～3.05121100410362510～11150108040033657～8100260801505730～64　　:[Fen+]1.0mg/L　　PAC:COD300mg/L、BOD5147mg/L、SS180mg/L、[Zn2+]、pH7～8、64～100、[Fen+]0.08mg/L(:COD300mg/L、BOD5100mg/L、SS150mg/L、[Zn2+]5mg/L、pH6～9、80、[Fen+])。3.4　A、B,PACPAM,1.0595/m3,,ApH,CaO(1.24～0.83)kg/m3×0.15/kg=0.0615/m3;Fe2+、Fe3+、PAC,0.89/m3(PAC:1.7/kg×0.55kg/m3=0.935/m3,:0.50/kg×0.09kg/m3=0.045/m3);PAM18/kg×0.006kg/m3=0.108/m3。0.28/m3×1/3≈0.09/m3。1.15/m3。,A。4　　(1),pH≤1.5。:V∶V=1∶4,pH2.5～3.0,3h。(2),A、BPAC、CaOPAM,,,,。(3)AB:---。[1],,.-.,2001,19(2):10～11[2],.Fen-ton.,2001,18(5):408～410[3],,.--.,2001,21(2):118～12053