反硝化生物滤池深度处理酸洗废水试验研究杨俊梅

300457。13dNO－3－N97．87%NO－2－NpH6．5～7．5、24～28℃、C/N4．0、HＲT20minTN、NO－3－N87．70%97．49%NO－2－N0．56mg/LTN、NO－3－NNO－2－N0～600mmTN、NO－3－N97．46%96．70%600mm。X703C1000－4602201523－0064－05DenitrificationBiofilterforAdvancedTreatmentofPicklingWastewaterYANGJun-meiLIUDong-fangWANGYiLIHe-linCollegeofEnvironmentalScienceandEngineeringNankaiUniversityTianjin300457ChinaAbstractDenitrificationbiofilterwasusedfortreatingpicklingwastewaterandthestart-upve-locitynitrogenremovalefficiencyandinfluencefactorswereinvestigated．Theresultsshowedthatwheninoculatedwithdenitrificationsludgedenitrificationbiofiltercouldreachsteadystateafter13days．TheremovalrateofNO－3－Nwas97．87%andtherewasnoNO－2－Naccumulation．Duringthestablerun-ningperiodwheninfluentpHvaluerangedfrom6．5to7．5influenttemperaturewaskeptbetween24℃and28℃HＲTwas20minandC/Nwas4．0theremovalratesofTNandNO－3－Nwere87．70%and97．49%respectivelyandNO－2－Nconcentrationintheeffluentwas0．56mg/L．WiththeincreaseoftheheightofdenitrificationbiofiltertheconcentrationsofTNandNO－3－NdecreasedgraduallywhileNO－2－Nconcentrationfirstincreasedandthendeclined．Thecontributionratesof0to600mmfilterlay-ertoTNandNO－3－Nremovalwere97．46%and96．70%respectivelysotheoptimalheightofdenitri-ficationbiofilterwasdeterminedtobe600mm．Keywordsdenitrificationbiofilterpicklingwastewateradvancedtreatmentbiologicalni-trogenremovalNO－3－N。2060NO－3－N2080、NO－3－N1。NO－3－N、、23。NO－3－N·46·3123201512CHINAWATEＲ＆WASTEWATEＲVol．31No．23Dec．2015NO－3－N。DNBFNO－3－NNO－3－NN24。、、、、56。。NO－3－NTN《》GB18918—2002AA。。11.11。1Fig．1Schematicdiagramofdenitrificationbiofilter100mm150mm200mm。4～6mm650mm。150mm4。。1.2、NO－3－N、。24～28℃、pH6．5～7．5、COD30～40mg/L、NO－3－N40～55mg/L、TN46～60mg/L。1.3CODNO－3－NNO－2－NN－1－－TN—。1.4。10．4L、4000～5000mg/L。2。3。pH6．5～7．524～28℃HＲT40minC/N=7．0。NO－3－NNO－2－N。22.1NO－3－N2。1008060400481014-NO3-N/(mg·L-1)t/d61220100806040200/%2NO－3－NFig．2ＲemovalefficiencyofNO－3－Nduringstart-upperiod4NO－3－N4．12mg/L90．77%。5～13NO－3－N96．83%1．5mg/L。。913NO－2－N·56·．watergasheat．com31231mg/L。78①＞20℃HＲT②。Bartrolí9③、。2.2C/N。C/N＞39DO10。COD1112。C/N。24～28℃、pH6．5～7．5、HＲT40minC/N5．0、4．0、3．0C/N3。100806040024810141620/(mg·L-1)t/d6121820TNTN100806040200/%a.C/NC/N=5.0C/N=4.0C/N=3.0300250200150100024810141620COD/(mg·L-1)t/d6121850C/N=5.0C/N=4.0C/N=3.0b.C/NCOD3C/NFig．3InfluenceofC/Nratioonremovalefficiencyofnitrogenbydenitrificationbiofilter3aC/N5．04．0TN96．49%97．95%NO－3－N99．49%、99．23%NO－2－NC/N3．0TN、NO－3－N16．99、2．78mg/L69．06%、95．35%NO－2－N11．92mg/LNO－2－N。NO－3－N1mgNO－3－NNO－2－N1．15mgCODN22．86mgCOD。8。3bC/N5．0COD64．18mg/LAC/N4．0COD37．32mg/LA。CODC/N4．0。2.3HＲT24～28℃、pH6．5～7．5、C/N4．0HＲT40、20、10minHＲT4。10080604020010080604020024810141620/(mg·L-1)/%t/dTNTN61218HRT=40minHRT=20minHRT=10min4HＲTFig．4ＲemovalefficiencyofnitrogenbydenitrificationbiofilterwithdifferentHＲT4HＲT。HＲT40min20minNO－3－N98．46%97．49%TN97．05%87．70%TN10mg/LAHＲT20min10minTN7．13mg/L20．16·66·3123．watergasheat．commg/LNO－3－N1．14mg/L17．78mg/L。①HＲTHＲT②HＲT。NO－2－N。HＲT20min。2.424～28℃、pH6．5～7．5、C/N4．0、HＲT20min5。100806040200100806040200100200300400500600700/(mg·L-1)/%/mmTNTN5Fig．5TransformationruleofTNNO－3－NandNO－2－NwithheightofdenitrificationbiofilterTN、NO－3－N。0～150mmTN、NO－3－N34．99%46．44%NO－3－N、TN600～650mmTN、NO－3－N2．54%3．02%。、、、TN、NO－3－N。NO－2－N150mm。NO－2－NN2。50～600mmTN、NO－3－N97．46%96．70%。600mm。3①13d。NO－3－N97．87%NO－2－N。②24～28℃、pH6．5～7．5、HＲT40minC/N4．0。TN、NO－3－N97．95%99．23%NO－2－N1mg/L。③24～28℃、pH6．5～7．5、C/N4．0HＲT20min。TN、NO－3－N87．70%97．49%A。④TN、NO－3－NNO－2－N。0～600mmTN、NO－3－N97．46%96．70%。600mm。1．D．2004．2．J．2014302449－52．3．J．20143017120－122127．4．·76·．watergasheat．com3123J．2014301114－18．5．J．201228111－14．6．J．2012661857－1862．7．J．20092235－7．8．J．2008242126－29．9BartrolíACarreraJPérezJ．Bioaugmentationasatoolforimprovingthestart-upandstabilityofapilot-scalepartialnitrificationbiofilmairliftreactorJ．BioresourTechnol201110264370－4375．10．J．2014302272－77．11．CIBＲJ．201531187－90．12．C/NJ．2014301315－18．1986－。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2015－06－1263。。。③0．6～2．0mm2．0mm、。。DN800、1．2mm－0．03MPaDN800、1．8mm－0．055MPa《》GB50332—2002－0．05MPa。DN8001．21．8mm－0．05MPa。1．J．20143016133－135．2．P．CN13883352003－01－01．1957－。[e-mail]2015－06－13·86·3123．watergasheat．com