UASBAO耦合工艺处理高含氮印染废水中试李超

27720147ＲesearchofEnvironmentalSciencesVol．27No．7July2014．UASB-A/OJ．2014277733-741．LIChaoYINErqinTANGSiyuanetal．PilotstudyontreatmentofprintinganddyeingwastewaterbyUASB-A/OprocessJ．ＲesearchofEnvironmentalSciences2[e-mail]．*[e-mail]-A/O1222212*1．2100982．210098UASB-A/O．UASB0.065m3/hUASB0.260m3/hA/O200%ρCODCr＜200mg/LρNH3-N＜10mg/LρTN＜15mg/LUASBρNH3-NρTN80%85%UASBVFAsPVAUASBPVA10%～40%A/OPVA60%．UASBVFAsPVAX1711001－6929201407－0733－09ADOI10.13198/j．issn．1001-6929．2014．07．08PilotStudyonTreatmentofPrintingandDyeingWastewaterbyUASB-A/OProcessLIChao12YINEr-qin2TANGSi-yuan2ZHOUBin-yu2CAOJia-shun121．KeyLaboratoryofIntegratedＲegulationandＲesourceDevelopmentonShallowLakesMinistryofEducationHohaiUniversityNanjing210098China2．SchoolofEnvironmentHohaiUniversityNanjing210098ChinaAbstractInapilotexperimentthetreatmentofprintinganddyeingwastewaterbytheUASBup-flowanaerobicsludgebed-A/Ocouplingprocesswasstudied．Optimalpollutantremovalperformancewasobtainedundertheconditionsofinflowrates0.065m3/hand0.260m3/hforpretreatmentanddyeingwastewaterrespectivelyandrefluxratiofixedat200%fortheA/Oprocess．IntheeffluentCODCrwas＜200mg/Lammonianitrogenwas＜10mg/Landtotalnitrogenwas＜20mg/L．IntheUASBprocesssectionthedyeingandpretreatmentwastewatershowedhighefficiencyanaerobicammoniation．Ammonianitrogenoccupiedmorethan80%and85%ofthetotalnitrogenintheanaerobiceffluentofthedyeingandpretreatmentwastewaterrespectively．Evenatnormaltemperatureanaerobicdigestioncouldalsoachievegoodammoniation．InordertoenhancethedenitrificationVFAsvolatilefattyacidcouldbecontrolledbyadjustingtheoperationparametersoftheUASBsectionwhichproducedasufficientandhigh-qualitycarbonsourceforanoxicdenitrification．ThecouplingprocesshadagoodremovalefficiencyofPVApolyvinyalcoholinprintinganddyeingwastewater．TheremovalrateofPVAwas10%-40%intheUASBsectionwhileintheA/Osectiontheremovalratewasmorethan60%．KeywordsprintinganddyeingwastewaterUASBVFAshighefficientammoniationPVAρTN50mg/L1．ρCODCr、ρ、2-4．275-6、7-8、9．、、．．Somarsiri10UASB90%CODCr92%．LIANG11HＲT6h1296.5%．－．Kulla12－．ρTN．①13．TN14-15．②16-17．VFAsVFAs18-19VFAs．ρCODCr、ρ、UASBA/O．①UASB②UASBVFAs－．11.1UASB-A/OUASB-A/O1．6UASBΦ1232mm×4000mm4.0m3.2A/O4000mm×1100mm×2700mm2.3m36.7m31.6m3.1—2—UASB3—4—5—6—7—8—．1UASB-A/OFig.1SchematicdiagramofUASB-A/Oprocess1.2．、、4377UASB-A/OPVA．、．2UASBA/O1．2．1．1Table1InfluentqualitypHρCODCr/mg/LρNH3-N/mg/LρTN/mg/L7.5～8.53500～500025～4550～851024～20487.5～8.51000～150010～3025～452048～40961.3UASB．．2．2UASB-A/OTable2OperatingparametersofUASB-A/OprocessUASB/m3/h0.0651、0.26020.20.2HＲT/h601、15211.533.5ρMLSS/g/L30～403～43～4ρDO/mg/L0＜0.32.0～3.0pH7.5～8.07.2～7.57.2～7.5/%—200—12．1.4ρCODCrGB/T7486—1987《》pHpHHACHρNH3-NρTNρVFAsVFAs7890．820129VFAs．22.1UASB-A/OCODCr．UASB．22012101—18CODCr．2CODCr20%～40%．VFAs12．CODCr50%．CODCr．2A/OA/OCODCr80%ρCODCr200mg/L．2UASB-A/OCODCrFig.2CODCrremovalefficiencyofUASB-A/Oprocess537273VFAs．3HＲTCODCrVFAs．ρVFAsVFAs———．ρρVFAs94.3%89.7%．20-21．CODCrHＲT6015h．20．ρCODCrPVAHＲTCODCr2A/OHＲT10CODCr．．3VFAsTable3AnalysisofVFAsineachsectionρ/mg/LVFAs253.926.901.900282.7562.537.95.903.80610.1UASB414.916.94.04.000439.8UASB207.281.919.616.530.03.4358.642.313.03.600058.92.2UASB-A/ONH3-NTN2.2.122．30023．TN．TN、ρTN24．、2、ρNH3-N/ρTN3、4.3、43UASB、ρNH3-N/ρTNFig.3EfficiencyofdyeingwastewateranaerobicammoniationρNH3-N30%～45%ρNH3-N/ρTN97%98%．ρNH3-N/ρTN．6377UASB-A/O4UASB、ρNH3-N/ρTNFig.4Efficiencyofpretreatmentwastewateranaerobicammoniation．2．．ρNH3-N/ρTN95%、．A/OTN．2.2.2．30～33℃20～23℃．510℃ρNH3-N/ρTN5、6.CODCrCODCr50%30%6．52ρNH3-N/ρTN80%．．．①、、、、pH．②8．UASB．/℃1—30～332—20～23．5UASBρNH3-N/ρTNFig.5ImpactoftemperatureondyeingwastewateranaerobicammoniationbyUASB/℃1—30～332—20～23．6UASBρNH3-N/ρTNFig.6ImpactoftemperatureonpretreatmentwastewateranaerobicammoniationbyUASB2.2.3A/ONH3-NTN12．7A/O10TN75%11．1023～25℃1117～18℃2573727TN10．A/ONH3-N85%10—11TN．ρNH3-N10mg/LρTN15mg/L．TNUASBVFAs．7A/ONH3-NTNFig.7ＲemovalefficiencyofNH3-NandTNbyA/O2.3ρVFAsA/OTN－．－、．26．NH3-NA/OA/O．CODCr．UASBA/O———VFAs．．VFAsA/O27-2829．ρVFAsρVFAsA/O4．4UASB4VFAsA/OTNTable4VFAsonimpactoftotalnitrogenremovalinA/OprocessρVFAs/mg/LρCODCr/mg/LρTN/mg/LρVFAs/ρTNρTN/mg/LTN/%194.9121560.93.220.266.8201.3123261.03.319.867.5362.7178555.86.514.274.6498.1234758.68.513.177.6646.0254452.112.411.378.3771.1277664.811.911.182.9772.2228859.413.011.680.5849.3228861.113.913.178.6837889.8209666.913.311.083.67UASB-A/OVFAsρVFAs/ρTNTN．ρVFAsVFAs、．ρVFAs/ρTN6.5TN75%．VFAs．VFAs－．VFAs、．2.4UASB-A/OPVAPVA、PVAρBOD5/ρCODCr0.0643031．UASBA/OPVA8、9．8UASBPVAFig.8PVAdegradationinpretreatmentwastewaterbyUASBprocess9A/OPVAFig.9PVAdegradationinpretreatmentwastewaterbyA/OprocessρPVA100～300mg/L．8UASBPVA10%～40%ρPVA230mg/L．32PVA6.3%．9A/OPVA60%79%．3aUASB-A/O、．CODCr、NH3-NTNρCODCr＜200mg/LρNH3-N＜10mg/LρTN＜15mg/L．bUASBρNH3-N/ρTN80%85%．cUASBVFAsVFAs．ρVFAs．ρVFAs/ρTNTN6.5TN75%．VFAs－．dUASB-A/O．UASBVFAsρVFAs/ρTNPVA．Ｒeferences1．BAFJ．2007328119-123.LANShanhongZHANGChihuiLIANGMouhuietal．StudiesonremovalofnitrogenfromdyeingandfinishingwastewaterbybaffilledbyanewtypemediamaterialJ．E