AB两段式工艺处理氨纶生产废水董军玲

205200710POLLUTIONCONTROLTECHNOLOGYVol.20,No.5Oct.,2007A+B,　(连云港市环境监测中心站,江苏连云港　222001)　:A+B,,COD91.8%,93.4%,,80%,。:A+B;;;:X791;X783.5　　　:AWastewaterTreatmentofUrethaneElasticFibreProductionwithA+BTwoStageProcessDONGJun-ling,　LSong-tao(LianyungangEnvironmentalMonitoringCenter,Lianyungang,JiangSu222001,China)Abstract:A+Btwostageprocesswasadoptedtotreaturethaneelasticfibreindustrialwastewater.TheresultsindicatedthattheremovalratesofCOD,NH3-Nwere91.8%and93.4%respectively,andthewaterqualityofeffluentmettherequirementsofnationalstandards,ofwhich80%isreusedincirculatingcoolingwatersystem.Keywords:A+Btwostageprocess;urethaneelasticfibreindustrialwastewater;reuse:2007-04-05;:2007-06-14:(1973—),,,,,。1　　,800t/d1600t/d,,,,。2　2.1　进、出水水质设计:pH7.91～8.15,SS50～69mg/L,CODcr168～620mg/L,TN88.5～162mg/L,NH3-N70～129mg/L。:1600m3/d。(1),《》(DB32/180—1998),pH=6～9,SS≤100mg/L,BOD5≤25mg/L,CODcr≤100mg/L,NH3-N≤15mg/L,≤10mg/L;(2),:SS≤20mg/L、pH7.0～9.2,0.5～1.0mg/L。,(),、()。2.2　工艺路线设计++++++,SS、pH、CODcr,NH3-N,,NH3-N。DMF,,。,,,,。,。,。,(),AB,。:A,;B200710.A+B·67　　　·。AB:(1)AB,,。A,(),40%～70%BOD,BOD/N。B,,,,。A、B,。(2)A,,、N、P,,B。(3)A,、pH、。(4),。2.3　处理程度设计CODcr85%NH3-N90%。2.4　工艺流程,1。1　2.5　主要工序设计参数(1)　,,,:D4600×7800mm,2,,4h。(2)　,,,:D17000,D24600,H9664mm,2,,,,4h,。(3)-　,-,5400mm×5400mm×9500mm,2。16700mm×5400mm×95000mm,2,。,-,17m3/min,,200%。(4)　,,,:D4500×H6544mm,4,。,,1.0m3/(m2·h),2.0h,,,100%,。(5)　,,:D2200mm×4530mm,2,。。2.6　施工安排,,、、、、、、,、,A,,、、。,。3　,AB(下转第84页)·84　　　·　　　　　205,,140mL。,,,。20.00mL,。:CODcr(mg/L)=(V0-V1)×C×8×1000/V,C-(mol/L);V0-(mL);V1-(mL);V-(mL);8-(1/2O)(g/mol)。4　　,、,,,CODcr,、,,。,,,,CODcr,。:(1),,。(2),,、。(3),,。[][1]　GB8978,[S].[2]　GB11914,　　[S].[3]　[M]..:,2002.[4]　[M].:,1994.(上接第67页),,600m3/d,CODcr400mg/L,50mg/L,,75d,,1500m3/d。2004921—231。1　mg/LpHCODcrSS9.217.774836560.56.52/9.227.625345868.77.30/9.237.804576770.27.14/9.217.4538154.320.350.69.227.4640124.510.210.69.237.4042144.190.300.6/%//91.878.493.495.9/,《》(DB32/180—1998),COD91.8%,93.4%,,20049,,80%,20%,。4　(1),,,,,,,,。(2),。,、,,。5　　A+BCOD,,,,COD91.8%,93.4%,80%,20%,。