沸石固定化细胞处理农村生活污水中氨氮效果研究陈兵红

32323000、SHJ-1。。、pH、。30℃pH860min15g/L99.72%。X172Q819Q93A1003-6504(2009)07-0132-04BiodegradationEffectofAmmoniaNitrogeninRuralDomesticWastewaterbyImmobilizedCellswithZeoliteCHENBing-hongLishuiVocationalandTechnologyCollegeLishui323000ChinaAbstractPseudomonassp.SHJ-1isolatedanddomesticatedfromruraldomesticwastewaterwasimmobilizedonthezeoliteascarrieranditsbiodegradationcharacteristicsofammonianitrogenwerestudied.Resultsshowedthatitwasfeasibletoimmobilizecellsbythewayofbacteriumsettlingonthecarrier.TheeffectsofammonianitrogenbiodegradationbyimmobilizedcellswithzeolitewereaffectedbytemperaturepHdosageandcontacttimeespeciallytemperature.Undertheoptimalconditionsofzeolite15g/Ltemperature30℃pH8andcontacttime60minthebiodegradationrateofammonianitrogenwas99.72%.Keywordsammonianitrogenruraldomesticwastewaterbiodegradationzeoliteimmobilization[1]。。、[2]。、、。、、、、。、[3-4]。、SHJ-1。11.1、、。15~20mg/L。、。、、。450℃36~65。、NaCl5.0g10.0g5.0gpH7.4。1%、3%、0.1%、0.1%。。SHJ-1。[e-mail]。EnvironmentalScience&Technology32720097Vol.32No.7Jul.20097[97]32mL250mL5.0gSHJ-148h30℃、120r/min。。。。。。1.3。250mL30℃、120r/min。1.4GB7479-87。。22.1。--。2h。1。6h14h16h19h24h。。2.212250mL2mLSHJ-15gSHJ-15g31.2.230min、60min、90min、120min2。60min99.46%、60min。2.3pH5gpH5、6、7、8、9250mL60min2mLSHJ-1pH3。pHpHpH6~899%pH=899.68%。13332pH。pH。2.44SHJ-120℃、25℃、30℃、35℃、40℃、。25℃~40℃35℃99.68%。2.51.25g、2.50g、5.00g、12.50g、25.0g50g36~656250mL60min5。55~20g/mL。20g/L。2.62.6.1。。L934、pH、、。1。2.6.2、2。1Table1Factorsandlevelsoftheorthogonaltest123A(℃)253035BpH678C(min)6090120D(g/L)1015206h、8h10h2Table2Experimentalarrangemenofammonia-nitrogenremoval(%)ABCD1111187.52122290.33133393.94212397.35223198.56231299.77313290.88321394.49332195.3271.7275.6281.6281.3295.5283.2282.9280.8280.5288.9283.2285.6/390.691.993.993.8/398.594.494.393.6/393.596.394.495.2R()7.94.40.51.6~1~33。R。2.6.31347ABDCpH。A2B3C1D2。2.73。3。、。7、3%105%。。3、。。、pH、。30℃pH860min15g/L99.72%。[][1].LMB[J].,200635370-74.[2].[M].200050-51.[3].Pb2+[J].200124249-51.[4].[J].200527294-96.[5]SubYeung-jean.Biodegradationofcyanidecompoundsflu－orescensmmobilizedonzeolite[J].EnzymeMicrobTechnol199416529-533.3Table3Comparisonofammonia-nitrogenremovalbetweenImmobilizedcellsandfreecellsintheoptimalcondition(%)73.7482.3399.72135