反硝化滤池深度脱氮效能分析及工程应用李鑫玮

121113121．1001242．1001243．1008724．8、6．0、8．9m/h、、DNBF。DNBF80%DNBF8．9m/hC/N5．070%TN15mg/L。X703C1000－4602201621－0132－05EfficiencyAnalysisandEngineeringApplicationforAdvancedNitrogenＲemovalinDenitrificationBiofilterLIXin-wei12FUWei1WEIWei1WANGFeng1LIUXiu-hong3GANYi-ping121．BeijingDrainageGroupCo．Ltd．Beijing100124China2．BeijingEngineeringＲesearchCenterofWastewaterＲeuseBeijing100124China3．SchoolofEnvironmentandNaturalＲesourcesＲenminUniversityofChinaBeijing100872ChinaAbstractApilot-scaledenitrificationbiofilterDNBFwasusedtoinvestigatetheinfluenceoffiltrationvelocities4．8m/h6．0m/hand8．9m/htypesofexternalcarbonsourcessodiumacetateandmethanolandtheirdosagesontheadvancednitrogenremoval．TheresultsshowedthatDNBFcouldachieveahighnitrogenremoval＞80%underdifferenttypesofexternalcarbonsource．Thedosageofcarbonsourcewasakeyfactorfornitrogenremoval．WhentheoptimalC/Nwas5．0atafiltrationveloci-tyof8．9m/handwithmethanolasacarbonsourcethenitrogenremovalratecouldbeover70%．TNconcentrationintheeffluentfromafull-scalereclaimedwatertreatmentplantusingtheoptimalfactorswaslessthan15mg/LwhichcouldmeettherelevantdischargestandardsofBeijingandChina．Keywordsdenitrificationbiofilternitrogenremovalfiltrationvelocitycarbonsourcereclaimedwater8632013AA065205DNBF。12DNBF238×104m3/d。DNBF·231·3221201611CHINAWATEＲ＆WASTEWATEＲVol．32No．21Nov．2016。DNBF、、、3～7DNBF。、DNBF。11.1DNBF1。、500m3/d。1．4m×1．2m×8m8m32．5m。DNBF4～6mm。COD、TN、NH3－N、NO－3－N、TP26．7、24．3、0．9、22．0、0．4mg/L。1DNBFFig．1Schematicdiagramofpilot-scaleDNBFDNBF“→→”8L/m2·s2min8L/m2·s6L/m2·s5min6L/m2·s8min。24h。4．88．9m/h6．08．9m/h。DNBFNO－3－NNO－2－N0．1mg/LC/NCOD/NO－3－N。CODC/N。1.2COD、NO－3－N、NO－2－N、NH3－N、TN。22.12.1.120～25℃、4．8m/h1C/N2．5～6．94．98．9m/h1C/N4．5～7．66．0。NO－3－N1．252．16kg/m3·d。、NO－3－NNO－2－N2。2、Fig．2Concentrationsofnitrogenatdifferentfiltrationvelocitiessodiumacetateascarbonsource·331·．watergasheat．com3221TN10mg/L4．8m/hTN90%8．9m/hTN74%。NO－2－NC/NNO－2－N。8。2．5m8．9m/h。2.1.2。、NO－3－NNO－2－N3。3、Fig．3Concentrationsofnitrogenatdifferentfiltrationvelocitiesmethanolascarbonsource16．0m/hNO－3－N3mg/LNO－2－NNO－2－N10mg/L。C/N4NO－3－NNO－2－NTN57%。15～30C/N5．6NO－2－N5mg/L0．6mg/LNO－3－NNO－2－N6mg/LTN84%NO－2－N9～11。6．0m/h18．9m/h2。NO－3－N1．321．84kg/m3·d。3NO－3－NNO－2－N15mg/LTN72%。DNBF。2.2C/NDNBF。C/NCODC/NTNNO－2－N。2.2.1、C/N4。、＜1mg/LNO－3－NNO－2－N。4NO－x－NC/N。C/NNO－x－NＲ20．7340．816。4．8m/hC/N4．4NO－x－N80%C/N4．7NO－x－N90%C/NNO－x－N。8．9m/hC/NNO－x－NC/N4．7NO－x－N70%C/N5．5NO－x－N80%COD·431·3221．watergasheat．com11．90kg/m3·dC/NNO－x－NCOD。C/N。4C/NFig．4EffectsofC/Nonnitrogenremovalsodiumacetateascarbonsource2.2.2NO－x－NC/NＲ20．8380．785。C/N4．7NO－x－N70%C/N5．9NO－x－N80%。C/N5．070%～80%COD8．88kg/m3·dC/NNO－x－N。2.2.3、C/N、C/N5．0NO－x－N70%TN30mg/LTN10mg/L。1g1．50gCOD1g0．78gCODCOD。98%3500/t30%1500/t。。。2.32.3.110×104m3/d“DNBF+BAF”DNBF。DNBF77．8m268．9m/h4～6mm2．5m。C/NDNBF。DNBF。2012。2.3.2DNBF、、、。2014DNBF9．8×104m3/dCOD、TN、NH3－N、NO－3－N22．7、19．6、0．4、17．9mg/L41．1mg/L。DNBFNH3－NTNNO－3－N。99%COD61．0mg/LDNBFCOD83．7mg/LC/NCOD/NO－3－N4．72．2．2C/N70%。62．1%CODC/N4．7。、NO－3－NTN5TN15mg/L8．4mg/L《》GB18918—2002A《·531·．watergasheat．com3221》DB11/890—2012。5Fig．5Nitrogenremovalinfull-scaleDNBFprocess3①DNBF4．8、6．0m/h8．9m/h8．9m/h。②DNBFC/NC/N8．9m/hC/N5．5C/N5．0。③、8．9m/h、C/N5．0DNBFTN15mg/L《》GB18918—2002A《》DB11/890—2012。1．BIOFOＲJ．200925634－36．2．J．201339423－27．3．J．201228111－14．4．J．2011271591－94．5．J．2008242126－29．6．J．20103081615－1621．7．J．2011571522－1526．8．J．2012281182－84．9．J．2013391136－40．10．J．201127798－100．11GeSPengYWangSetal．NitriteaccumulationunderconstanttemperatureinanoxicdenitrificationprocessTheeffectsofcarbonsourcesandCOD/NO－3－NJ．BioresourTechnol20121143137－143．1981－。[e-mail]2016－04－17·631·3221．watergasheat．com