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沸石生物脱氮处理焦化废水研究左志芳,黄永兰*(扬州工业职业技术学院,江苏扬州225127):,、,,。SBR,。SBR,,,。:;;;;;SBR:X784 :A :1002-1116(2007)05-0040-04 ,,,[1]。。,NH4+-N,[2,3]。。,SBR,。1 、1.1 (C6H12O6·H2O)、(Na2CO3)、(NaHCO3)、(NH4Cl)、(KNO3)、(K2HPO4·3H2O),。(Ca,40~60)、(Ca,20~40),。1.2 。,、。1.3 [4,5]:;:N-1;:;pH:pHS-2S;DO:ORION。2 2.1 (200)40~60,,1g。,15min,10min,5min。1、2。1、2,,,,。1 355200710 JiangsuChemicalIndustry Vol.35No.5 Oct.2007*:2007-08-06:(1982—),,,,,:。:13665235468。2 ,,,,。,,,,,。2.2 40~600.5,1,2,3g,。3、4。3 4 3、4,,,,,。,。,,,-。3 3.1 ,,,,,。。,、。:ρ()500mg·L-1;ρ[NH4+-N(NH4Cl)]500~1200mg·L-1;ρ(NaHCO3)2.5g·L-1;ρ(Na2CO3)0.5mg·L-1;ρ(K2HPO4)0.3g·L-1,pH7.5~8.5。,Fe、Mg、Na、K。:ρ()2g·L-1;ρ(NaHCO3)0.5g·L-1;ρ(K2HPO4)0.3g·L-1,ρ(KNO3)0.25~1g·L-1。,,,。,7~10d。3.2 3.2.1 硝化反应中氨氮、亚硝酸盐氮、硝酸盐氮和总氮的降解SBR,NH4+-N、NO2--N、NO3--N,。,0.4~0.6L·min-1,DO1mg·L-1,4.5h(4h),141.78mg·L-17.72mg·L-1,5。,,,,。NO2--N,,NO2--N,,SBR(6)。,,,。,NO2--N,NO3--N,,NO3--N41355 :,,NO2--N,NH4+-NNO2--N,NO3--N。26.5%,,,-。,SBR,20%,。5 6 SBR3.2.2 硝化阶段pH值变化曲线及碱度对其影响实验,NaHCO3Na2CO3pH,NaHCO3Na2CO3。,pH,,CO2pH,,NH4+-N,pH,,,CO2pH。7。7 pH ,0.4L·min-1,4000mg·L-1,30℃,,、pH=8。8、9。8 pH9 8、9,pH,HCO3-,:NH4++1.86O2+1.98HCO3-※0.0206C5H7O2N+0.98NO3-+1.04H2O+1.88H2CO3OH-,pH,,,HCO3-[6],。3.2.3 硝化阶段DO变化曲线DO,,1~0.5mg·L-1。,DO,,,DO。10。42 20071010 DO3.3 ,NO3--N、NO2--N,NO3--N、NO2--N,SBR。,15minNO3--NNO2--N。11NO3--N,NO2--N,NO2--N,NO2--N。,。11 、4 (1)SBR,,,。(2),。,。(3)SBR。,,,,SBR。。:[1] ,,.[M].:,2002:370-405.[2] .[J].:,2002,21(1):87-89.[3] ,.[J].,2004,5(3):18-22.[4] 《》.[M].:,1997.[5] ,.[M].:,1990.[6] ,.[M].:,1998.StudyontheTreatmentofCokeWastewaterbyBiologicalDenitrificationZUOZhi-fang,HUANGYong-lan(YangzhouPolytechnicInstitute,Yangzhou225127,China)Abstract:Zeoliteisanexcellentionexchangerandadsorbent,andtheadsorptioncapacityisproportionalwithitssurfaceareaanddosagethereforezeolitecanbeusedtotreatthecokingwastewater.Besides,zeoliteisthegoodbio-logicalcarrier.TheSBRprocessusingzeoliteasthebio-carrierinthetreatmentofcokewastewaterwasstudiedinthispapertoexaminethemainaffectingfactors.Astheresultsdemonstrated,SBRprocesshadgoodperformancewiththeshortenedtimeandthesludgehasbettersettlingproperties.Thesecondarypollutionintheregenerationofzeolitewasalsoavoided.Keywords:cokewastewater;zeolite;bio-carrier;nitrification;denitrification;SBR43355 :
本文标题:沸石生物脱氮处理焦化废水研究左志芳
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