不同运行策略下厌氧氨氧化的脱氮性能安芳娇

39620186ENVIＲONMENTALSCIENCEVol．39No．6Jun．20181211111*1．7300702．100124ASBＲ、pH．30℃NO－2-N30±0.2mg·L－1NO－2-N/NH+4-N0.91.4NH+4-NNO－2-N54.4%65.3%95.8%92.5%1.6NH+4-NNO－2-N54.6%1.32．30℃15℃NH+4-NNO－2-N97.5%98.5%35.2%40.1%→→30℃25℃→20℃15℃NH+4-NNO－2-N97.7%98.6%52.7%62.4%．NO－2-N/NH+4-N1.4pH7.78.5NH+4-NNO－2-NpH8.3．pHX703.1A0250-3301201806-2770-08DOI10．13227/j．hjkx．2017111202017-11-142017-11-305166803310100411050041993～[e-mail]*[e-mail]alofNitrogenDuringAnaerobicAmmoniaOxidationUsingDifferentOperationalStrategiesANFang-jiao1PENGYong-zhen2DONGZhi-long1SHAOZhao-wei1ZHAOZhi-chao1HUANGJian-ming1CHENYong-zhi1*1．SchoolofEnvironmentalandMunicipalEngineeringLanzhouJiaotongUniversityLanzhou730070China2．NationalEngineeringLaboratoryofUrbanSewageAdvancedTreatmentandＲesourceUtilizationTechnologyBeijingUniversityofTechnologyBeijing100124ChinaAbstractTheeffectsoflowsubstrateratiocoolingmethodsandpHonnitrogenremovalperformancewerestudiedinalaboratory-scaleanaerobicammoniumoxidationreactorASBＲwhiletreatingsimulateddomesticwastewater．TheresultsillustratedthattheaverageremovalefficienciesofNH+4-NandNO－2-Nincreasedfrom54.4%and65.3%to95.8%and92.5%respectivelyatatemperatureof30℃andaninfluentconcentrationofNO－2-Nof30±0.2mg·L－1．ThesubstrateratioNO－2-N/NH+4-Nincreasedfrom0.9to1.4．HowevertheremovalefficiencyofNH+4-NwasaffectednegligiblyandtheaverageremovalefficiencyofNO－2-Ndecreasedto54.6%whenthesubstrateratiowasincreasedto1.6suggestingthatthenitrogenremovalperformanceofanaerobicammoniumoxidationwasbestwhenthesubstrateratiowasclosetothetheoreticalvalueof1.32．TheaverageremovalefficienciesofNH+4-NandNO－2-Ndecreasedfrom97.5%and98.5%to35.2%and40.1%respectivelywhenthetemperatureofthereactordroppedfrom30℃to15℃atonetime．TheaverageremovalefficienciesofNH+4-NandNO－2-Ndroppedfrom97.7%and98.6%to52.7%and62.4%respectivelywhentheladdercoolingmethod→→→30℃25℃20℃15℃wasused．TheaverageremovalefficienciesofNH+4-NandNO－2-NincreasedinitiallyandthendecreasedwhenthepHwasincreasedgraduallyfrom7.7to8.5．ThehighestnitrogenremovalefficiencywasachievedwhenthepHwascontrolledat8.3withasubstrateratioofNO－2-N/NH+4-Nequalto1.4．KeywordsanaerobicammoniaoxidationANAMMOXsubstrateratiocoolingmethodspHbiologicalnitrogenremoval、1．．50%2～4．NH+4+1.32NO－2+0.066HCO－3+0.13H→+1.02N2+0.26NO－3+0.066CH2O0.5N0.15+2.03H2OΔNO－2-N/ΔNH+4-NΔNO－3-N/ΔNH+4-N1.320.2656．76NO－2-N/NH+4-N1.34Tsushima8NO－2-N/NH+4-N0.8～0.87．26～37℃4.35%9.03%9．10UASBpH7.5～8.5．．、pHASBＲ．11.1ASBＲ114cm45cm5L．．1.2MLSS3380mg·L－1VSS2530mg·L－1．1.3NH4ClNaNO23KH2PO42mg·L－1KHCO3110mg·L－1MgSO4·7H2O20mg·L－1CaCl2·2H2O20mg·L－1ⅠⅡ1.5mL·L－1．ⅠEDTA5000mg·L－1FeSO45000mg·L－1ⅡEDTA5000mg·L－1CoCl2·6H2O240mg·L－1ZnSO4·7H2O430mg·L－1MnCl2·4H2O990mg·L－1CuSO4·5H2O250mg·L－1NiCl2·6H2O190mg·L－1NaMoO4·2H2O220mg·L－1H3BO414mg·L－1NaSeO4·10H2O210mg·L－1．1．ASBＲ2．3．4．5．6．7．pH、OＲP8．1ASBＲFig．1SchematicdiagramofASBＲreactor0.45μm11COD、NH+4-N、NO－2-N、NO－3-N．1.4ASBＲ280min→5min→240min→30min5min80%．NO－2-N/NH+4-NpH7．31NO－2-N/NH+4-N0.9、1.1、1.3、1.4、1.51.6NO－2-N30±0.2mg·L－1、30℃pH7.2±0.2．21～430℃515℃1～430℃5～1025℃11～1920℃20～4015℃．NH+4-N、NO－2-N25.0±0.5mg·L－133.0±0.5mg·L－1pH7.2±0.2．3pH7.7、7.9、8.1、8.38.5NH+4-NNO－2-N21.5mg·L－130.6mg·L－130℃．22.12NO－2-N/NH+4-N0.9、1.1、1772392NH+4-N、NO－2-NFig．2EffectofsubstrateratioontheremovalofNH+4-NNO－2-Nandstoichiometricratio1.3、1.4、1.51.6NH+4-NNO－2-N．2NO－2-N/NH+4-N0.9NH+4-NNO－2-N54.4%65.3%ΔNO－2-N/ΔNH+4-N1.01.1ΔNO－3-N/ΔNH+4-N0.12．NO－2-N/NH+4-N1.1NH+4-NNO－2-N14NH+4-NNO－2-N8.2mg·L－16.3mg·L－1ΔNO－2-N/ΔNH+4-N1.2ΔNO－3-N/ΔNH+4-N．NO－2-N/NH+4-N1.3NH+4-N82.5%NO－2-N84.4%ΔNO－2-N/ΔNH+4-N1.28NO－2-N/NH+4-NNH+4-N．NO－2-N/NH+4-N1.4NH+4-NNO－2-N28NH+4-NNO－2-N0.9mg·L－12.3mg·L－195.8%92.5%．ΔNO－2-N/ΔNH+4-N1.35ΔNO－3-N/ΔNH+4-N0.25NO－2-N/NH+4-N0.9、1.11.3．ΔNO－2-N/ΔNH+4-NΔNO－3-N/ΔNH+4-N1213．NO－3-N/NH+4-N1.6NH+4-N96.2%NO－2-N54.6%ΔNO－2-N/ΔNH+4-N1.350.98．14ASBＲNO－2-N/NH+4-N1.33．15NO－2-N/NH+4-N1.02NH+4-NNO－2-N94.5%97.4%．7NO－2-N/NH+4-N1.34NH+4-NNO－2-N99．9%．NO－2-N/NH+4-N1.427726NO－2-N．2.22.2.1NH+4-N、NO－2-N25.0±0.5mg·L－133.0±0.5mg·L－1．1～430℃5～4015℃．1～430℃5～1025℃11～1920℃20～4015℃．NH+4-NNO－2-N3．3NH+4-N、NO－2-NFig．3VariationsofNH+4-NandNO－2-Nwithdifferentcoolingmethods330℃NH+4-NNO－2-N0.6mg·L－10.5mg·L－197.5%98.5%．15℃NH+4-NNO－2-N16.2mg·L－119.5mg·L－135.2%40.1%．36NH+4-NNO－2-N13.6mg·L－116.2mg·L－146.7%51.6%．1631℃17℃NH+4-NNO－2-N97.0%94.1%46.2%41.8%．NH+4-NNO－2-N30℃25℃NH+4-NNO－2-N4.6mg·L－15.1mg·L－181.8%84.6%．25℃20℃NH+4-NNO－2-N6.0mg·L－16.7mg·L－176.4%79.7%．20℃15℃NH+4-NNO－2-N11.8mg·L－112.9mg·L－153.5%61.5%．25、2015℃3．1731℃16℃NH+4-NNO－2-N50.2%65.4%34.5%39.8%．3772391833℃15℃NH+4-NNO－2-N93.3%100%50.8%51.8%．．2.2.2415℃30℃NH+4-N、NO－2-NNO－3-N．4NH+4-N、NO－2-NNO－3-NFig．4VariationsofNH+4-NNO－2-NandNO－3-Nwiththetemperatureincreaseoccurringallatonce1～7NH+4-NNO－2-N11.8mg·L－112.9mg·L－153.5%61.5%NO－3-N2.1mg·L－1．NH+4-NNO－2-NNO－3-N15NH+4-NNO－2-N5.2mg·L－15.0mg·L－179.6%85.1%NO－3-N4.4mg·L－1．30NH+4-NNO－2-N1.6mg·L－11.5mg·L－193.7%95.5%NO－3-N5.4mg·L－1．ASBＲ15℃30℃30．1617℃31℃NH+4-NNO－2-N20.2%21.3%99.4%90.6%NH+4-NNO－2-N．1922℃32℃NH+4-NNO－2-N64.6%69.1%84.8%85.6%NH+4-NNO－2-N8