AO两级FentonBAF组合工艺深度处理垃圾渗滤液

20181845380·141·A/O-Fenton-BAF(510006)[](MBR),/-Fenton-(BAF)COD1221mg/L201mg/LCOD93.8%91.4%COD80mg/L20mg/L(GB16889-2008)2[]A/OFenton[]X703[]A[]1007-1865(2018)18-0141-02CombinedProcessofA/O,Two-stageFentonOxidation-BAFforPilotTreatmentofLandfillLeachateYuanYanlei,RaoLi,LiBinghui(GuangzhouHualuEnvironmentalProtectionTechnologyCo.,Ltd,Guangzhou510006,China)Abstract:AccordingtothecharacteristicsoflandfillleachatewhichishardtobebiologicallydegradedafterMembraneBioreactor(MBR)treatment,acombinationprocessofaerobictreatment/anaerobictreatment-twostageFenton-biologicalaeratedfilter(BAF)wasused.CODandtotalnitrogenintherawwastewaterwereabout1221mg/Land201mg/Lrespectively.Theoperationresultsshowthattheoperationofthecombinedprocessisstable.TheremovalratesofCODandtotalnitrogenare93.8%and91.4%respectively.TheeffluentCOD,totalnitrogenarelessthan80mg/Land20mg/Lrespectively,whichmeetthetable2criteriaspecifiedinStandardforPollutionControlontheLandfillSiteforDomesticWaste(GB16889-2008).Keywords:LandfillleachateA/OFentonoxidationBiologicalaeratedfilter65%~75%[1]A/O-Fenton-BAF()1MBR36m3/d(GB16889-2008)2COD100mg/LTN40mg/L11Tab.1QualityofinfluentandwastewaterdischargestandardsCOD/(mg·L-1)1500100TN/(mg·L-1)40040/100040pH6.0-9.06.0-9.022.11Fig.1Flowchartofleachatetreatmentprocess2.2MBRA/OFentonBAFBAFA/OTNBAFTNFenton-BAF(GB16889-2008)22.322Tab.2Wastewatertreatmentfacilitiesanddesignparameters//m/m3/hAO110.5×5.5×3.010067Fenton2Φ2.0×3.5Φ1.0×3.510653Φ0.5×3.52.51.5BAF2Φ2.0×6.0(DN)149Φ1.5×4.5(DC)64BAF25.2×4.2×3.0322033.130d[]2018-07-20[](1988-)201818·142·(GB16889-2008)2A/O1m3/h1m3/h1.30.4m3/hFenton27.5%H2O25.3mL/L2mL/LFeSO4·7H2O10.6g/L4g/LADN-BAF41712323COD1021~1470mg/LTN134~370mg/LCOD80mg/LTN20mg/LCODTN90%2COD3TNFig.2RemovaleffectofCODFig.3RemovaleffectofTN433Tab.3Thecostcomparisonofeachkindofreagent(/kg)(/m3)27.5%H2O22.014.60.68.761.80.04NaOH412320PAM200.1355.5/m35(1)A/O-Fenton-BAF,55/m3(2)COD93.8%91.4%COD80mg/L20mg/L(GB16889-2008)2[1]-A/O-Fenton-BAF[J]201301129-131+135(138)4[1]GB13223-2011[S]2011[2]2007[3][2016]1512016[4][2016]12622016