SBR反应器同步硝化反硝化影响因素及其特性马放

43820118JOURN[e-mail]、SBR．25～30℃、pH7～91∶1～8∶1COD、、TN0.12～0.80L·min－199.8%TN0.2L·min－195.52%COD91%COD．25～30℃、1.5∶1、0.2L·min－1、pH7～9．pHX522A0367－6234201108－0055－06Theinfluencingfactorsandthecharacteristicsofsimultaneousnitrification-denitrificationinSBRMAFangLIPingZHANGXiao-qiSUNJing-wenWANGHong-yuZHANGJiaStateKeyLaboratoryofUrbanWaterResource[e-mail]hemechanismofsimultaneousnitrificationanddenitrificationSNDandpromotetheefficiencyofSNDsystembyusingthedomesticatedefficientSNDsludgetheeffectsoforganismDOandtemperatureontheSBRreactorwerestudied．Theexperimentresultsshowedthatwhenthetemperaturewas25－30andpHwas7－9thenitrate－nitrogenremovalwaspreferablywhenC/Nratevariedbetween1∶1－8∶1CODconcentrationammonianitrogenremovalrateandTNremovalratedecreasewiththeincreasingofC/Nrate．Dosingorganiccompoundsintwicecanenhancetheaerobicdenitrificationeffect．Whenaerationvolumevariedfrom0.12to0.80L·min－1ammonianitrogenremovalrateincreasedfirstandthenkeptap-proximateconstantwiththeincreaseofaerationvolumefinallybecamestableat99.8%．TNremovalratein-creasedfirsttothehighestat95.52%thendecreasedwhenaerationvolumewas0.2L·min－1andCODwasstableabove91%．TheinfluenceofaerationrateontheCODremovalisnotdistinct．Thebesteffectwillbeachievedifthesystemtemperatureis25－30℃C/Nrateis1.5∶1aerationvolumeis0.2L·min－1pHis7－9andthedosingoforganiccompoundsisintwice．Keywordssimultaneousnitrification－denitrificationSNDorganiccompoundsaerationratetemperaturepH2010－03－18．507780522008ZX07202－005．1963—．SimultaneousnitrificationanddenitrificationSND、、、、、1－5．Ying－Chih6、7．8SBRpH．pH8.5COD90.0%99.4%．9TN58%．10TN80～110mg·L－10.8～4.0mg·L－1NH3－N100%TN54%～77%NH3－N．11DO1.0mg·L－1MLSS8～9g·L－124℃pH7.2COD、NH3－N52317.24～24.00mg·L－195%92%．12．、COD、DO．．、SBR．11.1SBR3L．．12h、10min0.5h．1.2NO3－－N、KH2PO4、MgSO4·7H2O、CaCl2、NaAc、NaHCO3．NaHCO3pH．1．1NH4+－N100～130mg·L－1NO3－－N－COD100～250mg·L－1NaHCO33～6gMgSO450mg·L－1KH2PO422mg·L－1CaCl210mg·L－11.313COD、NO3－－N、NO2－－N、NH4+－NTNpHS－25pHYSI5000DO．22.12.1.1、SBR．27℃0.2L·min－1DO2.4～4.5mg·L－197.13～160.2mg·L－11∶1、1.5∶1、3∶1、4∶1、6∶1、8∶1．2．21∶1～8∶1CODTN1.5∶1．．“”14．COD35～·65·43300mg·L－11.5∶1、TNCOD99.86%93.53%99.7%．2mg·L－1mg·L－1%TNmg·L－1mg·L－1%CODmg·L－1mg·L－1%1∶197.136.1793.64126.3821.4183.20155.4201001.5∶1152.80.19999.86178.8211.5593.59243.700.74699.73∶1111.13.7896.59138.0134.3275.34500.417.7898.44∶1160.210.2393.67200.8762.7263.30663.627.7898.86∶1110.415.1286.21157.8657.0055.52978.9372.7392.68∶1106.417.1983.84141.0964.8254.451316.5122.690.72.1.231．COD290.3mg·L－1、、TN111.0、12.4、11.2、155.7mg·L－1．DO0.5～3.0mg·L－128℃．24h．、、TN121.0、12.4、8.7、167.3mg·L－1、4h295.1mg·L－1．3．COD175.3mg·L－1、、TN117.0、10.3、10.8、148.7mg·L－1．4COD205.1mg·L－1．．13．140120100806040200246810120h4h0h+4ht/h籽（氨氮）/(mg·L-1)0h：进水时一次性投加有机物；4h：进水时不添加，4h后添加有机物；0h+4h：0h和4h分两次投加有机物.13ta=0.05excelt1－2=2.91＞t=1.78P＜a=0.05t1－3=3.90＞t=1.78、P＜a=0.05．1423．．．3．23．1310254．224．30．3ta=0.05excelt1－2=0.3＜t=1.78、P1－2＞a=0.05t1－3=1.15＜t=1.78、P1－3＞a=0.05·75·8SBR．0h4h0h+4h252015105024681012t/h籽（硝氮）/(mg·L-1)233．籽（亚硝氮）/(mg·L-1)0h4h0h+4h252015105024681012t/h3ta=0.05excelt1－2=3.86＞t=1.78P＜a=0.05t1－3=1.95＞t=1.78、P＜a=0.05．．231．43TN．3TN92.3%89.2%94.2%3TNta=0.05ex-celt1－2=1.26＜t=1.78、P1－2＞a=0.05TN．12TN．t1－3=3.63＞t=1.78、P1－3＜a=0.05133TN．TN/(mg·L-1)0h4h0h+4h20015010050024681012t/h4TNCOD．51COD290.3mg·L－14hCOD75.1mg·L－175%．3COD175.3mg·L－13hCOD50mg·L－1．3CODta=0.05excelt1－2=0.66＜t=1.78、P1－2＞a=0.05t1－3=0.36＜t=1.78、P1－3＞a=0.05COD396.9%96.1%97.2%．COD/(mg·L-1)0h4h0h+4h35030025020015010050024681012t/h5COD2.2．DO15．DOSND16．·85·4317．DO．0.12～0.80L·min－1DO2.0～8.0mg·L－1．0.12～0.20L·min－1．0.12L·min－120.9mg·L－1．18DODOSND．Bemet19DO．≥0.4L·min－10.8L·min－1102.65mg·L－1．60.12L·min－178.84%99.8%TN0.2L·min－195.52%COD91%COD．1201008060402000.120.200.400.600.80曝气量/(L·min-1)氨氮TNCOD去除率/%6DO、TN、COD2.320～30℃15℃5℃．20、2530℃3．0.2L·min－112h．10℃1～2．．20～30℃TN．Arrhenius．20．25～30℃．．730℃99.8%95.67%CODCOD20～30℃96.6%～98.25%．20℃25℃30℃120100806040200氨氮TNCOD去除率/%7、TN、COD2.4pHpHpH．12DO1mg·L－1pH6.8～9.7CODNH4+－NTNpH7.2pH5．0.2L·min－11.2∶1100mg·L－1pHCOD8．pH．pH≥70TN82%pH=6TN85.47%36.91%·95·8SBRpH7．pH6～9COD85%．pH7～9．pH=9pH=8pH=7pH=6120100806040200氨氮TNCOD去除率/%8pH、TN、COD31．1∶1～8∶1CODTN．1.5∶1、TNCOD99.86%93.53%99.7%．TNCOD．2．0.12～0.80L·min－1DO2.0～8.0mg·L－10.4L·min－199.8%TN0.2L·min－195.52%．COD91%COD．325～30℃pH7～9SBR－SND．1DINGAZFUMSHENGGY．EvidenceofaerobicdenitrificationJ．ChinScieBull20004532779－2785．2．J．200520280－83．3PATUREAUD．Combinedphosphateandnitrogenre-movalinasequencingbatchreactorusingtheaerobicdenitrifierJ．WatRes2000351189－197．4LUKOWTDIEKMANNH．AerobicdenitrificationbyanewlyisolatedheterotrophicbacteriumstrainTL1J．BiotechnologyLetters199711191157－1159．5CHIUAYCLEELLCHANGCNetal．ControlofcarbonandammoniumratioforsimultaneousnitrificationanddenitrificationinasequencingbatchbioreactorJ．InternationalBiodeterioration＆Biodegradation2007591－7．6HOLMANJBWAREHAMDG．CODammoniaanddissolvedoxygentimeprofilesinthesimultaneousnitrifi-cation/denitrificationpr