包埋菌膨胀床脱氮工艺处理煤气化废水1

Aug．2018388ModernChemicalIndustry20188*100028。TNTN。TN。20%、6h、TN160mg/LTN3mg/LTN97%。X703A0253－4320201808－0176－04DOI10．16606/j．cnki．issn0253－4320．2018．08．038NitrogenremovalfromcoalgasificationwastewaterbyEGSBwithembeddedbacteriaprocessJIQin-hong*YUGuang-xinYUHangXIONGLiangSUNYu-pingLIUQiangNewEnergyＲesearchCenterChinaNationalOffshoreOilCorporationＲesearchInstituteCo．Ltd．Beijing100028ChinaAbstractThenitrogenremovaltreatmentofcoalgasificationwastewaterisperformedbytheexpandedgranularsludgebedEGSBcombinedwithembeddedbacteriaprocess．ExperimentalresultsshowthattheEGSBwithembeddedbacteriareactorisabletowithstandwidertotalnitrogenTNloadchangerangeandcaneffectivelyremoveTNfromcoalgasificationwastewater．NeithershorteningthehydraulicretentiontimeHＲTofEGSBreactornorreducingthefillingrateofembeddedbacteriagranularareconducivetotheTNremovalfromwastewater．TNconcentrationineffluentfromEGSBwithembeddedbacteriareactorislessthan3mg·L－1andTNremovalratecanexceed97%whenthefillingrateofembeddedbacteriagranularis20%HＲTinthereactoris6handtheinfluentTNconcentrationisaround160mg·L－1．Keywordsembeddedbacteriaexpandedgranularsludgebedcoalga[e-mail]。。GB31571—201540mg/L30mg/L1。、、A/OA2O2－8。、、、。9－11。、、、12－13。、、。。11.1—1。1COD/mg·L－1ρ/mg·L－1ρ/mg·L－1ρ/mg·L－1ρ/mg·L－1pH156.7～323.819.3～35.50.6～2.1141.2～159.7147.9～167.17.2～8.2·671·201881.2、、。3mm×3mm×3mm。1.02～1.03g/cm31。11.32。224.5L。。、。。、、。25℃400mg/L6h0～0.5mg/L。30%。ρNO－3－N=60mg/L15～20d90%。1.4COD14ρ14－ρNH+4－N14ρNO－3－N14N－1－－ρNO－2－N14－ρTN14JPB－607ADOPHB－4pHpH。22.1。30%HＲT8hC/N25℃TNTNHＲT7、6、5、4、3h7dHＲT3。1—2—3TN3HＲTHＲTTN。HＲT6h6hTN5mg/LTN95%HＲT5hTN10mg/LHＲT4h3hTN30mg/L50mg/LTN80%65%。HＲTTN·771·388TNTN。HＲT6h。2.2。。。C/N6h30%25%、20%、15%、10%5%14dTN4。1—2—4TN4TN160mg/L30%、25%20%TN5mg/L95%15%、10%TN30mg/L80%5%TN61.4mg/L60%。TN。20%。2.3HＲT2pHC/N6h20%TNpH5、6。1—2—3—51—pH2—pH6pH5TN160mg/LTN3mg/LTN97%。pH。6pHpH0.05～0.390.25。pH。pH。、。SS。A/OA2O、。·871·2018831TN、TN。6h20%TN160mg/LTN3mg/LTN97%。2TN。30%20%TN95%20%TN。20%6h。3。A/OA2O、。1．GB31571—2015S．2015－07－01．2．A/OJ．201535180－86．3．A/O－MBＲJ．201545876－82．4．A/O+MBBＲJ．20103612122－126．5．A/O2/J．200929479－81．6．A2/O+BAFJ．201442553－56．7．A2O2J．2014301896－98．8．A/O+MBＲJ．2017373101－103．9QiaoSenTianTianDuanXiumeietal．Novelsingle-stageauto-trophicnitrogenremovalviaco-immobilizingpartialnitrifyingandanammoxbiomassJ．ChemicalEngineeringJournal201323019－26．10．J．2015414612－620．11．J．20156641459－1466．12．J．201231332－35．13DongYameiZhangZhenjiaJinYongweietal．Nitrificationcharac-teristicsofnitrobacteriaimmobilizedinwaterbornepolyurethaneinwastewaterofcorn-basedethanolfuelproductionJ．JournalofEn-vironmentalSciences2012246999－1005．14《》．M．4．2002．■檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪殏殏殏殏2018“”。725—85。、Dr．StefanBruening“。。2002。‘’。”、“‘’。”。。、6～12。78、3。·971·