多级AO及改进工艺去除煤气化废水中典型污染物黄达

、、C/N、、CN-、SCN[1-2]。、MBBR、UASB、A/OA/A/O[3]。A/O、、、[4]。A/O。A/O“”[5]。、。[6]。HANCODNH4+-N、TN35.1mg/L4.8、13.6mg/L74.6%85.0%、72.3%[7]。A2/ONH4+-NTN。A/OMsAOA/OBEMsAO。11.1MsAO48.0L11.0L32.5L3.0L710055A/OMsAOA/OBEMsAO。COD546.9～2221mg/LMsAOBEMsAOCOD91.67%89.03%514.9g/(m3·d)364.6g/(m3·d)NH4+-N195.4～520.3mg/LMsAONH4+-N149.4mg/L63.42%。BEMsAONH4+-N1.32mg/L99.48%BEMsAONH4+-NMsAONH4+-N36.06%。0.08m3/(m2·d)0.11m3/(m2·d)MsAONH4+-N37.5%BEMsAONH4+-N99.00%BEMsAOMsAO。A/OA/OX784A1000-3770(2017)08-0114[e-mail][e-mail]43820178Vol.43No.8Aug.,2017DOI:10.16796/j.cnki.1000-3770.2017.08.0251141.5L。15L/d500%100%HRT76.8hHLR0.08m3/(m2·d)。DO3～4mg/L。BEMsAOMsAO25%25mm、10mm0.96g/cm3500m2/m3MsAO。1。1.2。COD/ρ(TN)1:1COD/ρ(TN)3:1COD546.9～2221mg/LpH7.32～8.92NH4+-N、NO3--N、NO2--N、PO43--P195.38～520.27、0.52～98.70、0～14.99、0.01～8.28mg/L。1.3CODNH4+-NNO3--NNO2--NN-(1-)-PO43--P[8]。22.1COD2COD2。2MsAOCOD1292～1586mg/L(1444±109)mg/LCOD72.76～248.0mg/L(113.8±68.0)mg/L91.97%。44d。COD606～2221mg/L(1730±418)mg/LCOD75.29～187.50mg/L(129.7±39.9)mg/L91.67%514.9g/(m3·d)。BEMsAOCOD547～1160mg/L(748.7±278.7)mg/LCOD147.7～238.9mg/L(215.6±42.3)mg/L69.61%。40dCOD996～1879mg/L(1251±348)mg/LCOD76.3～819.9mg/L(176.6±171.3)mg/L89.03%364.6g/(m3·d)。20.08～0.13m3/(m2·d)HLRCOD。LI[9]。COD800～900mg/LCOD200～300mg/LCOD70%～80%。MsAOBEMsAOCOD91.67%89.03%COD75%[10]。2.2NH4+-N2NH4+-N3。3MsAONH4+-N113.8～358.5mg/L(251.7±102.0)mg/LNH4+-N0.15～17.63mg/L1Fig.1Schematicdiagramofexperimentsystem2CODFig.2CharacteristicsofCODremoval0501001502002503003500.00.51.01.52.02.50204060801000.000.020.040.060.080.100.120.14
HLR/(mmd)COD/gL/%t/d
 3NH4+-NFig.3CharacteristicsofNH4+-Nremovalρ(NH4+-N)ρ(NH4+-N)/(g·L-1)0501001502002503003500.00.10.20.30.40.50.60204060801000.000.020.040.060.080.100.120.14
HLR/(mmd)
/%t/d A/O115(3.26±7.04)mg/L97.76%。NH4+-N213.6～520.3mg/L(445.6±77.1)mg/LNH4+-N0.13～291.1mg/L(149.4±121.2)mg/L63.42%95.08g/(m3·d)。HLR0.08m3/(m2·d)0.10m3/(m2·d)25.0%NH4+-N93.93%63.09%HLR0.11m3/(m2·d)37.5%NH4+-N44.85%6.20g/(m3·h)3.85g/(m3·h)。HLRHRTHRTNH4+-NNH4+-N[11]。BEMsAONH4+-N261.2～374.2mg/L(300.4±50.8)mg/LNH4+-N1.45～259.6mg/L(179.1±120.5)mg/L41.44%。NH4+-N195.4～324.7mg/L(259.1±35.0)mg/LNH4+-N0.30～2.63mg/L(1.32±0.69)mg/L99.48%89.44g/(m3·d)。HLR0.08m3/(m2·d)0.11m3/(m2·d)NH4+-N0.13m3/(m2·d)62.5%NH4+-N99.0%4.0g/(m3·h)。BEMsAOMsAO。NH4+-N63.42%99.48%。A/O-COD350～1100mg/LNH4+-N80～280mg/L90%95%[12]。2NH4+-N、NO3--NNO2--N4～91。4～9MsAO90d。A1O2NH4+-NNH4+-N160.5～336.5mg/LBEMsAOA1NH4+-N66.34mg/LA17。140。[13]。O1NH4+-NO1O2NH4+-NNO3--Nρ(NH4+-N)/(mg·L-1)03060901201501800100200300400500600
t/d4MsAONH4+-NFig.4NH4+-NcontentchangebyMsAOineachreactionzone5MsAONO3--NFig.5NO3--NcontentchangebyMsAOineachreactionzoneρ(NO3--N)/(mg·L-1)0306090120150180020406080100120
t/d6MsAONO2--NFig.6NO2--NcontentchangebyMsAOineachreactionzoneρ(NO2--N)/(mg·L-1)03060901201501800102030405060
t/d7BEMsAONH4+-NFig.7NH4+-NcontentchangebyBEMsAOineachreactionzone03060901201501800100200300400
t/dρ(NH4+-N)/(mg·L-1)438116NO3--N27.65～173.2mg/LBEMsAOCOD。1MsAOA1NH4+-NA1。2NH4+-NNH4+-NMsAO61.77%85.45%。MsAO。、[14]。2.3TN2TN10。10MsAOTN114.9～363.3mg/L(254.9±103.4)mg/LTN14.44～50.71mg/L(36.70±13.17)mg/L83.92%。TN214.2～530.6mg/L(450.45±79.16)mg/LTN1.66～293.30mg/L(162.3±109.4)mg/L61.07%。HLR0.08m3/(m2·d)0.1m3/(m2·d)TN91.29%62.53%HLR0.11m3/(m2·d)TN44.90%。NH4+-NTN。BEMsAOTN262.8～377.2mg/L(302.57±51.34)mg/LTN171.1～263.1mg/L(224.8±41.2)mg/L25.38%。TN203.3～360.8mg/L(289.2±47.9)mg/LTN9.12～135.4mg/L(55.91±35.60)mg/L80.49%。TN61.07%80.49%。XUTN322.0～345.0mg/LTN51.80mg/L80.77%[15]。MsAOTNNH4+-NBEMsAOTNCODTN。[16]。8BEMsAONO3--NFig.8NO3--NcontentchangebyBEMsAOineachreactionzone030609012015018004080120160200
t/dρ(NO3--N)/(mg·L-1)9BEMsAONO2--NFig.9NO2--NcontentchangebyBEMsAOineachreactionzone0306090120150180048121620
t/dρ(NO2--N)/(mg·L-1)10TNFig.10CharacteristicsofTNremovalρ(TN)/(mg·L-1)0501001502002503003500.00.10.20.30.40.50.60204060801000.000.020.040.060.080.100.120.14
HLR/(mmd)/%t/d 
MsAOBEMsAOMsAOBEMsAOMsAOBEMsAOA1O1A2O2445.6±77.1194.0±105.8163.0±125.8156.0±121.9149.4±121.2266.9±40.666.34±80.0636.18±87.7635.15±84.2135.19±85.421.6561.81.571.471.0085.450.3902.4992.932.362.221.1598.410.440/%/%1MsAOBEMsAONH4+-Nn=23Tab.1AveragecontentofNH4+-NandremovalcontributionratebyMsAOandBEMsAOineachreactionzoneρ(NH4+-N)/(mg·L-1)A/O117RemovalofTypicalPollutantsfromCoalGasificationWastewaterbyMulti-StageA/OandModifiedProcessHUANGDa,YANGYongzhe,GAOZhuang,YUEShan(SchoolofEnvironmentalandMunicipalEngineering,Xi'anUniversityofArchitectureandTechnology,Xi'an710055,China)Abstract:Multi-stageA/Oprocess(MsAO)andbiofilmenhancedmulti-stageA/Oprocess(BEMsAO)wasusedtotreatcoalgasificationwastewater,andtheremovalcharacteristicsoftypicalpollutantswereresearched.TheresultsshowedthatwhentheCODofinfluentwas546.9~2221mg/L