臭氧处理造纸废水生化出水的氮素变化

12[1-2][3]。[4]。。O2N2[5-6]。NO2[7]。、。[8]。《》[e-mail]。EnvironmentalScience&Technology3712201412Vol.37No.12Dec.2014曾科，崔燕平，郝甜利，张宏超，黄丽君450002。1.01~1.386.54%~27.53%。27.53%78%。0.62~2.40h1.07~1.38。X506Adoi10.3969/j.issn.1003-6504.2014.12.0401003-6504(2014)12-0209-05NitrogenTransformationinOzonationofEffluentfromaPaper-millWastewaterTreatmentPlantZENGKeCUIYanpingHAOTianliZHANGHongchaoHUANGLijunCollegeofWaterConservancyandEnvironmentalEngineeringZhengzhouUniversityZhengzhou450002ChinaAbstractApilot-plantexperimentwascarriedoutforresearchingozone-treatingprocessofsecondaryeffluentfromapaper-millwastewatertreatmentsystemfocusingonthetransformationofcontentofTNtotalnitrogenandnitratenitrogencontainedintheeffluentwiththechangesofozonedosageandcontacttime.ResultsoftheexperimentsuggestedthatthedissolutionofnitrogenoxidesintotheeffluentcausedbyozonationprocessresultedinanincreaseofTNconcentrationineffluenti.e.1.01to1.38timesthatintheinfluentasmallincreaserate6.54%to27.53%ofTNineffluentcomparedwiththeincrementofnitratenitrogenineffluent77.50%.Howevernitrogenconcentrationincrementcausedbyozoneoxidationwasmorethanthatcausedbythedissolutionofnitrogenoxides.Whencontacttimewaskeptwithintherangefrom0.62to2.40hTNconcentrationintheeffluentwas1.07to1.38timesthatintheinfluent.AsthecontacttimeincreasesodidtheincrementsofTNandnitratenitrogenineffluentmeanwhilethecumulatednitrogenoxidescausedbydissolutionintheeffluentincreasedaswell.Keywordsozonationeffluentfromsecondarytreatmentnitrogenconcentrationpapermillwastewater37。COD、。。。11.1试验用水水质1。1.2试验装置与过程12m3/h100g/h。1。YE-YH-1500mm6000mm4BQI-150100mm10μm。CF-G-2-100g20~30mg/L2.8m3/h。WW-0.22/70.22m3/min。HAD-0.7HTF0.7m3/min。GD-0.6N0.6m3/min。C/T/A-0010.01μm。YE-ID-20001～200mg/L。YE-PZ-100～20.00mg/L。、、、。。。0.5h、、、、、、、、、pH、COD、UV254、、、TN、、。[9]。1.3试验分析方法[9]pHpH。2、、、。。、。[10]。、、。2.1氧化后出水总氮含量的变化、2。21.01~1.38。9.115、7.360、7.750、6.280、6.400、11.460mg/L10.428、9.385、9.035、7.643、8.823、11.525mg/L。/℃pHCOD/mg·L-1TN/mg·L-1/mg·L-1/mg·L-115~357.2~8.5170~4004.9~11.51.0~5.50~5.8257.92858.23.32.91Table1Thewatergualityindexoftestedwater12。。。N2。=×/。mg/L3。31.04~1.13。63.58、85.48、107.34、126.69、145.17mg/L1.11、1.12、1.09、1.07、1.08。。。4。40.62、1.09、1.31、1.54、2.40h1.07、1.15、1.20、1.22、1.38。2.2氧化后出水硝酸盐氮含量的变化5。50.095、0.440、0.775、1.185、1.270、1.400mg/L0.353、0.995、1.835、3.118、4.335、4.325mg/L。、。。6。60。0.57、0.64mg/L1.49、1.62mg/L。6。、。37。[11]55%45%。7。71.54h。。33.1氧化后出水总氮的增加20.065、1.285、1.313、1.363、2.025、2.423mg/L。0.56%、12.59%、14.22%、17.83%、21.57%、27.46%。36.54%、7.40%、8.25%、9.90%、10.71%。46.54%、13.04%、16.66%、18.03%、27.53%。。。。9.79eV4.81eVNOx[5]。[12]0.1%~1%。3.2氮氧化物溶解转移的贡献555.88%、62.01%、67.63%、70.74%、73.15%、77.50%。6、756%。3.127.53%。77.50%。。。3.3接触时间对总氮变化的影响4、7。。411.01~1.38。6.54%~27.53%。227.53%77.50%。。30.62~2.40h1.07~1.38。。[][1]DeoliveriaTFChedevilleOCagnonBetal.DegradationKineticsofDEPinwaterbyozone/activatedcarbonprocessinfluenceofpH[J].Desalination2011269271-275.[2]YaalLHadasMInesZetal.Treatingwastewaterfromapharmaceuticalformulationfacilitybybiologicalprocessandozone[J].WaterResearch201347134349-4356.[3]NoemíMDaphneHLauraBetal.Assessingtheapplicationofadvancedoxidationprocessesandtheircombinationwithbiologicaltreatmenttoeffluentsfrompulpandpaperindustry[J].JournalofHazardousMaterials201312262420-427.[4].[J].2010336301-304.HongHaofengPanZhanchangXuLeietal.Degradationofaqueousphenolbycatalyticozonation[J].EnvironmentalScience&Technology2010336301-304.inChinese[5]YagiSTanakaM.Mechanismofozonegenerationinair-fedozonizers[J].JPhys&ApplPhys1979121509-1520.[6].[J].2009263235-236.LiuHailongWangXiangwenJiaoRuyuanetal.Outputandcontrolofnitrogenoxidesproducedbyhouseholdozonegeneratorasby-products[J].JournalofEnvironHealth2009263235-236.inChinese[7]FendelWMaterDBurtscherHetal.Interactionbetweencarbonorironaerosolparticlesandozone[J].AtmosphericEnvironment1995299967-973.[8].[J].200430750-52.WuChunduZhengLihanChuJinyu.Researchonozonegenerationbydischargeinair[J].HighVoltageEngineering2004,30750-52.inChinese[9].[M]..2002.StateEnvironmentalProtectionAdministrationofChina.MonitoringandAnalyticMethodsofWaterandWastewater[M].4thed.BeijingEnvironmentalSciencePressofChina2002.inChinese[10]HoigneJBadeHJBaderH.Rateconstantsofreactionsofozonewithorganicandinorganiccompoundsinwater-Inorganiccompoundsandradicals[J].WaterResearch198519993-1004.[11].[J].200521841-43.ZhangKuishanLiJiGuoZhaohaietal.Influenceofpreozonationprocessonammonianitrogenindrinkingwatertreatment[J].ChinaWater&Wastewater2005,21841-43.inChinese[12].[J].199925366-67.GeZiliangWuYuren.Studyontechnologicalimprovementofindustrialozonegenerator[J].HighVoltageEngineering1999,25366-67.inChinese（上接第177页）[9]YangYZhaoYQBabatundeAOetal.Characteristicsandmechanismsofphosphateadsorptionondewateredalumsludge[J].SeparationandPurificationTechnology.2006512193-200.[10]LiuYShiHLiWetal.Inhibitionofchemicaldoseinbi－ologicalphosphorusandnitrogenremovalinsimultaneouschemicalprecipitationforphosphorusremoval[J].Biore－sourceTechnology201110254008-4012.[11].[M].2003112.ZhengHuaili.B