大型UASB系统磷化氢分布及磷平衡研究丁丽丽

41　6200511　　　()JOURNALOFNANJINGUNIVERSITY(NATURALSCIENCES)　　　　Vol.41,No.6Nov.,2005UASB丁丽丽,朱益新,梁瀚文,王　强,莫伟恒,任洪强,王晓蓉(,,,210093)　:　UASB、.,1.94～17.92ngPH3/m3;0.09～0.16ngPH3/m3.100m.,4(19.14～106.3ngPH3/kg),;1049%～74%(9.05～27.52ngPH3/kg),,10.100.1ngPH3/kg(4).,,.,P4.5～46.6μgP,(0.434～4.25)×10-6‰.42.03～146.7μgP,(3.82～14.1)×10-6‰.4.45kgP/d,43%..:　UASB,　,,:　X701DistributionofPhosphineandPhosphorusBalanceinaFull_scaleUASBSystemDingLi_Li,ZhuYi_Xin,LiangHan_Wen,WangQiang,MoWei_Hen,RenHong_Qiang,WangXiao_Rong(StateKeyLaboratoryofPollutionControlandResourceReuse,SchoolofEnvironment,NanjingUniversity,Nanjing,210093,China)Abstract:　Distributionofgaseousphosphine,matrix_boundphosphineandphosphorusbalanceinafullscaleUASBreactorwereinvestigated.Resultsshowedthatmeanfreephosphineconcentrationinthebiogaswas1.94～17.92ngPH3/m3.Freephosphineconcentrationwas0.09～0.16ngPH3/m3intheatmosphereatthetopofUASB.Nophosphinewasdetectableintheambientair100mfromtheUASBreactor.Distributionofmatrix_boundphosphinealongtheheightofthesludgeblanketchangedgreatlyindifferentseasons.InApril,highermatrix_boundphosphineconcentrations(19.14～106.3ngPH3/kgwetsludge)wereachieved,whichfollowedawave_liketrendalongtheheight,E_mail:[e-mail]:(50278041),(BS2002049),(KF04002):2005-04-10ofsludgeblanket.InOctober,only9%～74%oftheconcentrationsinAprilwereobserved,whichwerehigherbothatthetopandbottomofsludgeblanketthanthoseinthemiddle.Lowerwastescontentandhigherup_flowratemaycontributetothischange.Intheoverfall,ashighas100.1ngPH3/kgwetsludgeofmeanmatrix_boundphosphineinthesludgewasfound.Sunshineandsufficientaircontactintheoverfallindicatesthatanewmechanismofbiologicalphosphineformationmayexistotherthananaerobicphosphatereduction.Investigationofphosphorusbalanceshowedthat4.5～46.6μgPinthebiogaswasreleasedperday,whichonlyaccountedfor(0.434～4.25)×10-6‰oftotalphosphorusremovalfromwastewater.42.03～146.7μgPasmatrix_boundphosphinewasremovedalongwithsludgedischarge,whichaccountedfor(3.82～14.1)×10-6‰oftotalphosphorusremoval.4.45kgPoftotalphosphorusinthedischargedsludgecontributedto43%oftotalphosphorusremovalfromwastewater.Theprobabilityofanaerobicphosphateremovalbyphosphineformationislittle.Keywords:　UASB,full_scale,anaerobic,phosphine,phosphorusbalance　　(phosphine,PH3)[1].,[2,3].Dévaietal.[4](1～2m),112mg/m3.30%～45%25%～50%.,(ng)[4],、、[5,6],Dévai.[1～3,6～8].1993,GassmannGlinde_mann,(matrix_boundphosphine)[8].、、()、、[9,10].,85%[11].,、、、[12～15].、,[13,14].UASB,[16],.,,,[17].,?,、;、[18].,.,Dévaimg,,..UASB、.1　1.1　　20044141020UASB,6.28℃～29℃,1200m3.24h,3～7d.UASB·621·　6:UASB1.,8.,3～5.3.COD23711618mg/L;COD90%84%.TP19.27mg/L14.61mg/L.1　UASBTable1　OperationalparametersoftheUASBreactor(℃)(m3/h)COD(mg/L)COD(mg/L)TN(mg/L)TN(mg/L)NH3-N(mg/L)TP(mg/L)TP(mg/L)(Nm3/h)2004-4-142828.41237123379.0358.36.719.274.061062004-10-202941.06161825626.3918.91.114.613.491191.2　1.2.1　　100mlNaOH(CO2、H2O、H2S),1(PorapackQ)(、).,(2)..Agilent4890(HewlettPackard),PlotAl2O3/Na2SO4(25m×0.53mmI.D),40℃,220℃.,2mL/min,90mL/min,4mL/min.(NitrogenPhosphorusDetector,NPD).[8].0.01ng/m3.1.2.2　　15mL6000r/min10min,,1g,5mL2mol/L5min,[8].1.2.3　　　1g(),8mLH2SO4,10HClO4.10min,.,100mL,.2mL50mL,.1.2.4　SS、VSS　[19].2　2.1　　2UASB.,41.94ngPH3/m3,10(17.92ngPH3/m3)1/10.[20]41ngPH3/m3135ngPH3/m3,Joels10.2ngPH3/m3[14].4(2m)102,0.16ngPH3/m3,、.100m.2.2　　UASB1,4.(1),57.19ngPH3/kg(),2106.3ngPH3/kg(),,3,19.14ngPH3/kg().5,87.81ngPH3/kg().637.12ngPH3/kg().·622·()412　Table2　FreephosphineinthebiogasandtheambientairaroundtheUASBreactor(ngPH3/m3)2004-4-14　　　　　1.94　　　　　0.82　　　　　5.170.160.040.37(100m)0002004-10-2017.917.718.00.0900.09(100m)00010UASB49%～74%,,.(1),14.62ngPH3/kg(),,3,9.05ngPH3/kg(),,627.52ngPH3/kg().10,.1,101618mg/L,468%;TN4(79.0mg/L)33%;TP4(19.3mg/L)76%.Rutishauser[15].,4,,、;1041.5,4,.,1pHSS,4pH,SS.1pH(pH=6.63),,.pH,37.15,46.95.56pH7.056.85.SS1100.4mg/kg()2104.1mg/kg()(),391.08mg/kg(),599.95mg/kg(),688.64mg/kg().10pH,7.34～7.43.SS,61.64～69.31mg/kg,6.,pHSS,.(4).,.,100.1ngPH3/kg(),2().2:(1)2UASB,,,,;(2)UASB,,COD、NP,,..,,,.SS、VSSVSS/SS2,108.0mg/kg()、57.4mg/kg()53%(3).·623·　6:UASB·624·()412.3　　4UASB.4,UASB76%～79%,10.4～11.0kgP.106～119Nm3/h,P4.5～46.6ugP,(0.434～4.25)×10-6‰.Ding500mL,P0.00002～0.001‰[21],(20～1000)×10-6‰,50%～65%.、;、(P).,:,6;,,,,.1988Dévai[4]30%～45%25%～50%.112mg/m3(=11.6;=382;s.d.=±103.64;n=11).[2].,.195.4～222.7kg(SS).SS215.1～658.5ngPH3kg-1(SS).42.03～146.7μgP,(3.82～14.1)×10-6‰.20.0gP/kg(SS)(4),4.45kgP,43%.4　UASBTable4　PhosphorusbalanceoftheUASBreactorsystemTP(kgP)TP(kgP)TP(%)TP(kgPd-1)PH3(ngm-3)(μgP)PTP(‰)(kgSSd-1)(μgPd-1)PH3P(‰)(kgP)(%)4-1413.22.87910.41.944.54.34×10-7222.7146.71.41×10-54.454310-2014.43.47611.017.946.64.25×10-6195.442.033.82×10-6--3　　(1)1.94～17.92ngPH3/m3;0.09～0.16ngPH3/m3.100m.(2):4(19.14～106.3ngPH3/kg()),;1049%～74%(9.05～27.52ngPH3/kg()),.100.1μgPH3/kg(),.·625·　6:UASB(3)P4.5～46.6μgP,(0.434～4.25)×10-6‰.42.03～146.7μgP,(3.82～14.1)×10-6‰.4.45kgP/d,43%.(4),:,6;,,,,.　　感谢Glindemann博士赠送色谱分析耗材,及对磷化氢测定提出的许多建议.感谢实验室冯建日方老师在分析测定方面给予的支持和帮助.References[1]　WorldHealthOrganization.Phosphineandselectedmetalphosphides.EnvironmentalHealthCrite