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36920079 AppliedChemicalIndustryVol.36No.9Sept.2007:2007-06-03:(1971-),,,,,。:0351-3569444,E-mail:menglibing1023@sohu.com耿振香,邱新发(, 030008) :-,,45mg/L,pH7.5,DO2.0mg/L,18h,96%。:;;-;:X703.1 :B :1671-3206(2007)09-0933-03StudyonimmobilizedmicroorganismtechnologytotreatwastewatercontainingammonianitrogenGENGZhen-xiang,QIUXin-fa(DepartmentofEnvironmentalEngineering,TaiyuanInstituteofTechnology,Taiyuan030008,China)Abstract:ThescreeningnitrifyingbacteriaanddenitrifyingbacteriafromtheactivatedsludgeisfixedbyPVA-boricacid-embedded.Thelivingsewageisprocessedbynitrification-denitrificationtechnology.Theresultsshowthatammoniaremovalefficiencyreachedmorethan96%,whenthewastewaterammoniacon-centrationwas45mg/L,pHwas7.5,DOwas2.0mg/Landthehydraulicretentiontimewas18h.Keywords:immobilization;microorganism;nitrifyatthesametime-nitrifyinstead;wastewatercontai-ningammonianitrogen 。NH+4NO-x,NO-xN2,,。-,,,,,。,。1 1.1 、、、、、、、、。SL-2800;722;JB-90D;SHA-C;SPX-250B;SCD-C1-IFD。1.2 1.2.1 硝化作用[1] ,,。,,。 : 2NH3+3O22HNO2+2H2O+619J : 2HNO2+O22HNO3+20J1.2.2 反硝化作用[2] ,。,NO-3,NO-3。 C6H12O6+6H2O6CO2+24H+ 24H++4NO-312H2O+2N2 C6H12O6+4NO-3 6H2O+6CO2+2N2+ ,,、、。,。1.2.3 同时硝化-反硝化作用[3] -DOI:10.16581/j.cnki.issn1671-3206.2007.09.03036(SND),,。,-,,、,,-。1.3 1.3.1 培养微生物的方法 ,、,、,。,,,,,20mL、。,,。1.3.2 固定微生物的方法[3] ,,PVA-H3BO3。:①(PVA);②PVA,PVA10%;③,10h,;④,,。1.3.3 正交实验 30℃,-,,,,,,。,1。1 Table1 FactorsandlevelsABCD/(mg·L-1)pH/(mg·L-1)/h12007.01.01021007.51.5143458.02.0181.4 ,,。2 2.1 2。 2,CDAB,A3B2C3D3,45mg/L,pH7.5,(DO)2.0mg/L,18h。2 Table2 OrthogonalexperimentanddataanalysisABCD/%1111163.72122286.13133393.74212388.25223184.56231271.37313296.88321379.69332180.9K1243.5248.7214.6229.1K2244.0250.2255.2254.2K3257.3245.9275.0261.5R13.8 4.360.432.42.2 2,100mg/L45mg/L,200mg/L100mg/L,。,100mg/L,,,。2.3 pH2,pH7.0~8.0,。7.0~8.0pH。,pH7.7~8.1,pH7.0~7.8。2.4 ,DO。DO,,,,;DO,,9349:,,,;DO,,,;DO,,,。,DO1.0mg/L2.0mg/L,,,DO,,。2.5 (HRT),HRT4。HRT,,,HRT14h。HRT,。,,HRT。,HRT。,,,,HRT,。3 -,-,,45mg/L,pH7.5,DO2.0mg/L,18h,,96%。:[1] ,.[M].2.:,2000:210-211.[2] ,,.[J].,2002(2):38-44.[3] .[M].:,2002:56-60.(927)3 XSεTable3 RelationshipbetweensaltconcentrationXSinethanolandcorrectionfactorεXSε0.0001.0000.0380.9570.0750.9060.1090.8420.1390.7830.1690.7094 VanLaarTable4 ParametersofVanLaarequationzA12A210.0001.7901.4900.0252.4601.0200.0502.5290.9030.0753.6000.950 :A12,A21VanLaar。3 (1),-。(2),,,VanLaar。:[1] ,,.[J].,2004,32(2):6-9.[2] JaquesD,FurterWF.Salteffectsinvapor-liquid:Testingthethermodynamicconsistencyofethanol-watersaturatedwithinorganicsalts[J].AICHEJ,1972,18(2):343-348.[3] ,.--[J].,1991,19(2):72-76.[4] ReidRC,PrausnitzJM,SherwoodTK.ThePropertiesofGasesandLiquids[M].3rded.NewYork:MoGr-Hill,1977:641,650.[5] ,,,.[J].,1985,14(2):79-85.935
本文标题:固定化微生物法处理含氨氮废水耿振香
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