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*易秀1,2田浩1刘意竹1叶凌枫1侯燕卿1王育科31.7100542.7100543.710054。11.0~1.4MPa0.10MPa4.8~5.0MPa0.10MPa2SDI43150μs/cmTDS50mg/L4pH。pH<710mg/L。DOI10.13205/j.hjgc.201409001APPLICATIONOFREVERSEOSMOSISTECHNOLOGYINTHETREATMENTOFNITROGENWASTEWATERYiXiu12TianHao1LiuYizhu1YeLingfeng1HouYanqin1WangYuke31.CollegeofEnvironmentalScienceandEngineeringChang'anUniversityXi'an710054China2.KeyLaboratoryofSubsurfaceHydrologyandEcologyinAridAreasMinistryofEducationXi'an710054China3.ShaanxiProvinceEnvironmentalMonitoringCenterXi'an710054ChinaAbstractTakingammonianitrogenwastewaterfromnanometerzincoxideindustryasanobjectreverseosmosistechnologywasusedtotreatitandtheproductionwatercouldrecycletoproductionprocess.Theresultsshowedthat1Processingunitofreverseosmosiswouldrunstablywhenoperatingpressureofthefirstreverseosmosissystemstabilizedbetween1.0MPaand1.4MPaandpressuredifferenceoffeedwaterandproductionwaterwaswithin0.10MPaandoperatingpressureofthesecondaryreverseosmosissystemstabilizedbetween4.8MPaand5.0MPaandpressuredifferencewaswithin0.10MPa.2AfterthetreatmentofflocculatingandtwostagesofsandfiltertheSDIofwastewaterwaslessthan4whichcouldmeettherequirementsoffeedwaterinreverseosmosissystemsoitwasnotnecessarytotakeultra-filtrationasthepretreatmentofreverseosmosis.3Conductivityofproductionwaterofthefirstreverseosmosiswaslessthan150μs/cmandTDSwaslessthan50mg/Linthesecondaryreverseosmosiswhichmetthestandardsofrecyclewaterinproductionprocessofnanometerzincoxide.4pHinfluenceddirectlythequalityoftreatingflushingwastewater.WhilepHofwastewaterwasadjustedlessto7thereverseosmosissystemwasmoststableintheprocessoftreatingammonianitrogenwastewaterandammonianitrogencontentofproductionwatercouldbecontrolledwithin10mg/L.Keywordsammonianitrogenwastewaterreverseosmosistechnologynanometerzincoxiderecycleutilization*51378067201301084B08039。2013-11-26、1-4。、、、、、、1WaterPollutionControl5-6。。1t45t1000mg/L。7-10。11-13、。11.1试验工艺流程。20m3/h10%。3。50%。、、、、。。1。1Fig.1Theflowchartofpilot-scaleproductionprocesses1.2纳米氧化锌工艺冲洗废水成分分析、、、、。。1。、、、COD5.44100311145.2mg/LGB8978—1996《》、、2.72、75.31.58。1Table1Determinationresultsofflushingwastewaterofnanometerzincoxidemg/LρCa2+ρMg2+ρZn2+ρFe2+ρSiO2ρCO2ρNH3-NρCO2-320.38.245.44<0.053.4915710030ρHCO-3ρSO2-4CaCO3CaCO3ρCODρ781263584.5641489245.2111381.3试验设计负荷及出水水质指标TDS4000~7000mg/L。、TDS、、SDIpH。400μs/cmρ<100mg/L。22.1设备运行参数2.1.1。、。0.08MPa1114。1。0.38MPa0.19MPa0.26MPa0.10MPa0.19MPa0.08MPa。。。2EnvironmentalEngineering、。0.08MPa。2。TDS6000mg/L15℃0.85151.60MPa。1.00MPa1.40MPa0.10MPa。3。5.0MPa4.90MPaTDS。36000mg/L15000mg/L5000mg/L16。2.1.21.6~1.8m3/h。。90%90%。、50%、1.2~1.7m3/h0.42~0.48m3/h。2.2废水处理效果2.2.1SDISDISDI6.7SDISDISDI4。2.2.2TDSTDS。2、。2Table2DesalinationrateandproductionwaterqualityoffirstandsecondaryreverseosmosisTDS/mg·L-1/μs·cm-1/%TDS/mg·L-1TDS/mg·L-1/%1650011598.82130002799.802750011099.02150002699.833620010098.92125002499.81462709798.97120002899.73561209998.92115003099.686701013398.73145002999.807425013697.869240——8650013798.59100004499.56943007699.8896302999.7010475012298.2991004699.5011640011699.09127004099.691261007899.15125002099.841345607398.9310800——1461309398.9913100——15560010598.7511000——1660007999.1211400——3WaterPollutionControl298%150μs/cm137μs/cm73μs/cm。400μs/cm。TDSTDS2∶150%1。。12。298%99.84%TDS50mg/L46mg/L20mg/L。TDS。2.2.3pH1。3。3820mg/L843.76mg/L25.61mg/L。。3Table3Ammonianitrogencontentinreverseosmosisproductionwatermg/L49.166.6957.825.20614.005.08713.11—843.7625.6196.795.551011.3010.40119.66—126.443.90135.824.50146.83—1510.48—165.43—800~1200mg/L98%。2pH。pH2pH7.74~8.49pHpHpH4.8210.03CO2NH317-18pH<7pH>7。CO2+H2OHCO-3+H+1NH3+H2ONH+4+OH-22pHFig.2ChangedtrendofpHinfirstreverseosmosissystem1HCO-3HCO-3HCO-31CO2CO2HCO-399%171H+pH。1CO2pHpHpHpHCO2pH。HCO-3CO2HCO-3TDS。pH3、4。NH+42NH32OH-pH。24EnvironmentalEngineeringNH3pHpHNH3pHpHNH3pH。3pHFig.3ChangedtrendofpHandammonianitrogencontentinfirstreverseosmosisproductionwater4pHFig.4ChangedtrendofpHandammonianitrogencontentinsecondaryreverseosmosisproductionwater3pH。pH56pHpHpH。58pH>8ρ40mg/L。pH<710mg/L。6pH。pH7。311.0~1.4MPa0.10MPa4.8~5.0MPa5pHFig.5pHoffeedwaterandammonianitrogenofproductionwaterinfirstreverseosmosis6pHFig.6pHoffeedwaterandammonianitrogenofproductionwaterinsecondaryreverseosmosis0.10MPa。2SDI4。398%150μs/cm99%TDS50mg/L。4pHpH。pH710mg/L。1.AOMBRJ.200733868-71.2.J.2007255102-104.3.MBBRJ.201127390-93.105WaterPollutionControlgrowthusinghomogenizationdisruptionJ.BioresourceTechnology201313443-50.19HeMHWeiCH.PerformanceofmembranebioreactorMBRsystemwithsludgeFentonoxidationprocessforminimizationofexcesssludgeproductionJ.JournalofHazardousMaterials2010176597-601.20HosseinHJalalS.UpgradingactivatedsludgesystemsandreductioninexcesssludgeJ.BioresourceTechnology201110210327-10333.21XingCHYamamotoKFukushiK.Performanceofaninclined-platemembranebioreactoratzeroexcesssludgedischargeJ.JournalofMembraneScience2006275175-186.22ChudobaPMorelACapdevilleB.ThecaseofbothenergeticuncoupleingandmetabolicselectionofmicroorganismsintheOSAactivatedsludgesystemJ.EnvironmentalTechnology1992138761-770.23SabySDjaferMChenGH.EffectoflowORPinan
本文标题:反渗透技术在氨氮废水处理中的应用研究
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