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0200315000t,3,GB8978—1996《》。2007,,。,,,。,DB32/1072—2007《》,2008630。DB32/1072—20071、2。1:1.1、220071231,3200811;2.≥12℃,≤12℃。1,2,2,2(1.,214400;2.,200051)):、、、。,,CODCr2000mg/L,pH13。DB32/1072—2007《》,:,8d,CODCr8000mg/L1800mg/L,,CODCr1600mg/L800mg/L;40%~50%;,,80%,CODCr60mg/L。:;;;:X5:B:1674-4829(2009)01-0036-02:2008-07-17:(1963-),,,,,.KeyTechniquesofUpgradingandReconstructionofTextileWastewaterCentralizedTreatmentPlantTANGXin-bao,SUNRui,CHENJi-hua,XIDan-liAbstract:Acentralizedtreatmentplantoftextilewastewateracceptedintegratedwastewaterinvolvedcottontextile,dyeingandfinishing,scouringandchemicalwastewaterwithverycomplexnatureandseriouspollution.TheconcentrationofCODCrinmixedwastewaterwasupto2000mg/LandpHwasashighas13.InresponsetothenewstandardofJiangsuProvinceDB32/1072-2007,theupgradingandreconstructionkeytechnologiesofoldwastewatertreatmentplantwasstudied:first,thehighconcentrationofdesizingandscouringwastewaterwasunderthe8-dayanaerobicpretreatmentusingthesegregationofhighandlowconcentrationwastewatertoreducetheconcentrationofCODCrfrom8000mg/Lto1800mg/L;andthenthetreatedwastewaterwasmixedwiththeprintinganddyeingwastewatersothattheconcentrationofCODCrinthepoolwasfrom1600mg/Lto800mg/L;atlast,withtheoptimizationofthebiologicalaeratedfilterandtheuseofajointanti-gas-waterrinseprocess,theconcentrationofCODCrfromBAFwasstabilitybelow60mg/L.Inthecourse,sludgewasreducedabout40%~50%andanti-washingwaterwassaved80%.Keywords:Textilewastewater;Upgradingandreconstruction;Segregationofhighandlowconcentrationwastewater;Anaerobicpretreatment123,ρ(CODCr)506050ρ(NH3-N)5(8)5(8)5(8)ρ(TN)201515ρ(TP)0.50.50.5mg·L-122120092EnvironmentalScienceandTechnologyVol.22No.1Feb.20092212,CODCr60mg/L,NH3-N5(8)mg/L,TN15mg/L,TP0.5mg/L,,。,,。1,,。,。,,。,,,、[1-3],:(1),,,pH。(2)8400t、1500t,、,CODCr8000mg/L,,HRT8d,,,,,30t10t,,CODCr800mg/L,。(3),SS,。(4),,、,DB32/1072—2007《》A1-2。2,1,:。133。3mg·L-1123456ρ(CODCr)606080808010080808080ρ(NH3-N)55205555555ρ(TN)15152515151515151515ρ(TP)0.50.50.50.50.50.50.50.50.50.5()、pH600m3·d-1400m3·d-1600m3·d-18400m3·d-12000m3·d-13000m3·d-1//()()()()////ρ(CODCr)/(mg·L-1)650~750600~680350~380300~35095~10575~8055~60ρ(BOD5)/(mg·L-1)200~300180~200180~20084~11925~3610ρ(SS)/(mg·L-1)250~350220~308200~277180~250126~17550~7010ρ(NH3-N)/(mg·L-1)≤151415108.57.577~87~7.26~75~76~86.5~86~7/200~400144~2888070~14050~9020~4010~20pH(40)37200924(1)、,CODCr,1600~2000mg/L800mg/L.。(2)pH138,,,67%,30t10t,15000t。(3),DB32/1072—2007A,1000t。[][1],,.[M].:,2008.[2],,,.[M].:,2008.[3],,,.[M].:,2007.()8m,7.5kW,。3.7,,,220m3,,。:2,11,50WL20-15-1.5,1.5kW。4200510,,50t80%,,,。,,,,,,,、、。,,pH10.5,85%,pH8.5~8.7。,,,,20d,40d,,,CODNH3-N,NH3-N40mg/L,,,。5128,10.9,1.345,0.66kW/m3,0.25/(),0.165/m3,(NaOH)1.11/m3,0.07/m3,,64.8,。6、2,,,,、,,,。[][1],.[J].,1999,12(4):12-13.[2],,.[M].:,2000.[3],.[J].,2008,21(3):33-35.[4],,,.[M].:,1995.()(37)40
本文标题:纺织废水集中处理厂升级改造关键技术汤新宝
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