干法腈纶废水处理技术汪宏渭

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              ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY    2005252[]2004-02-11;[]2004-08-12。[](1977—),,,,。1,2,3(1.,200072;2.,200072;3.,200540)[]—。pH4,2h,1.5h,COD1650mg/L1310mg/L,20.6%,BOD5/COD0.270.38。——,COD148mg/L,BOD516mg/L,13mg/L,SS100mg/L,。[];;;;[]703.1   []A   []1006-1878(2005)02-0128-04  2070,90,。,,,,[1~3]。。[4~6],,[7,8][9]。,。5——,,[10],[6,11]。,。1 实验部分1.1 ,1。,、、、、。1 pHCOD/(mgL-1)BOD5/(mgL-1)ρ()/(mgL-1)ρ()/(mgL-1)ρ*/(mgL-1)ρ(SS)/(mgL-1)6.2~6.51600~1700400~50050~8010500~600200  :ρ*SO2-3SO2-4。1.2 、:ACO-380;HL-2;LZB-3;LZB-8;6511;PHS-3CTpH;TG328B;7321-I。:,10~201∶1[12,13];;JW。:(PFS),;、、,450,;。1.3 1。,,,。128 2.1   81,,,(28~35℃)。1.4 。24h,;、。,,,。,3,。2.5。,、BOD5COD,。,。1.5 2。,(Q)(HRT)。2 HRT/h108181.50.5mg/L,2~4mg/L,Q2L/h。BOD5P100∶1。1.6 1.6.1 pH4,[4,14]、,10%pH8.0~8.5,3~5min,1.5h。10%,0.05%;0.3%,450g/m3。1.6.2 、、。;。30%~50%。:(1);(2)。,30minCOD、BOD5、SS。1.7 COD(GB11914-89);BOD5(GB7488-87),(GB7479-87);DO(GB7489-89);pH(GB6920-86)。2 结果与讨论2.1 2.1.1 HRTCOD,HRTCOD2。2 HRTCOD129      ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY      2005252,,COD;HRT120min,COD。HRT,;,HRT。,HRT2h。2.1.2 COD3。,+。3 COD●———;▲———;■———2.1.3 ,COD1650mg/L1310mg/L,COD20.6%,BOD5/COD0.270.38。、,,。,。2.2 3,COD,BOD54。3 COD/(mgL-1)13101108315148BOD5/(mgL-1)4985355716ρ()/(mgL-1)48678513ρ(SS)/(mgL-1) — ——100  34,,COD,15.4%,BOD5/COD0.380.48,BOD5,。,。4 CODBOD5COD,%15.471.653.0BOD5,%—89.371.9,%——84.7COD/(kgm-3d-1)0.4852.3920.201BOD5/(kgm-3d-1)—1.2510.038/(kgm-3d-1)——0.096CODBOD5,COD71.6%。,(、),。BOD557mg/L,。、,COD。COD160mg/L,BOD530mg/L,160mg/L,[15]。4,。—()—,,。3 结论与建议a),COD1650mg/L1310mg/L,COD20.6%,BOD5/COD0.270.38;—()—,COD148mg/L,BOD516mg/L,13mg/L,SS100mg/L,。b),。,,、。。c),,,,。130 2.   1 ..,1997,20(1):46~482 ..,2001,(4):54~563 ..,2001,24(1):6~8,424 ,..,2002,22(5):15~185 ..:,1994.43~636 ,,..,2001,21(9):11~147 ,,.———.,2001,27(6):40~458 ,,..,2002,33(2):21~249 ,..,2001,29(11):1294~129810 EkamaGA,WentzelMC.Difficultiesanddevelopmentsinbiologicalnutrientremovaltechnologyandmodeling.WatSciTech,1999,39(6):1~1111 ..,1997,(1):17~2012 ,..,2001,2(4):18~2413 ,,.、.,2001,17(5):65~6714 ,,..,2000,21(5):40~4315 .《》(GB8978-1996)COD.[1999]285,1999StudyontheTreatmentProcessforDry-spunPolyacrylonitrileFiberWastewaterWangHongwei1,SunZaibai2,SunGuohua3(1.SchoolofEnvironmentalandChemicalEngineering,ShanghaiUniversity,Shanghai200072,China;2.EnvironmentalEnineeringCo.Ltd.,ShanghaiShangdaScienceandTechnologyPark,Shanghai200072,China;3.EnvironmentalProtectionDepartment,ShanghaiPetrochemicalCompanyLtd.,Shanghai200540,China)Abstract:Dry-spunpolyacrylonitrilefiberwastewaterwasfirstpretreatedbyion-carboninternalelectroly-sis—coagulationprocess.AfterthewastewaterwithpH4istreatedbyinternalelectrolysisfor2handcoagulatedwithpolyferricsulfate(PFS)andanionicpolyacrylamide(PAM)for1.5h,theeffluentCODisdecreasedfrom1650mg/Lto1310mg/Lwith20.6%ofremovalrate,BOD/CODisincreasedfrom0.27to0.38.Thenthepretreatedeffluentistreatedbyhydrolysis-acidification—aerobicbiologicaltreatment—biologicalnitrificationprocess.ThefinaleffluentCOD,BOD,NH3-NmassconcentrationandSSmassconcentrationare148mg/L,16mg/L,13mg/Landlessthan100mg/Lrespectively.Thefinaleffluentqualitycanmeetthefirstgradedis-chargestandardsforwastewaterfrompolyacrylonitrilefiberindustry.Keywords:polyacrylonitrilefiberwastewater;internalelectrolysis;hydrolysis-acidification;aerobicbiologicaltreatment;nitrification(编辑 刘建新)131

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