您好,欢迎访问三七文档
当前位置:首页 > 商业/管理/HR > 公司方案 > ASBR反应器处理豆制品废水的试验王亮
ASBR王 亮 李风亭(,200092)刘 华(,200071) 采用厌氧序批式活性污泥法处理食品加工废水。试验研究了反应器的最佳进水、反应时间比,从而得出最低进水pH值和最少加碱量,同时还研究了反应器在常温和低温下的处理能力,以及pH冲击、搅拌频率、消毒液对反应器的影响。结果表明:最佳进水、反应时间比为2.5h4.5h,此时进水pH值降低到5.0,加碱量大大减少;CODCr去除率随温度的降低而降低,25℃时,CODCr去除率为83.45%,20℃时,CODCr去除率降至73%左右,15℃时,CODCr去除率只有57%左右;本工艺条件下最佳搅拌频率为每小时搅拌10min,反应器对pH冲击具有一定耐受能力,但消毒液对处理效果影响较大且恢复困难。 ASBR系统 豆制品废水 废水处理 (ASBR),90IowaRichardR.Dague[1],,,,,。,。,[2,3],ASBR,ASBR、,、pH,、、,ASBR。1 1.1 试验流程 ,1。1.2 试验装置 ASBR,140mm×750mm;。1.3 试验方法 (1),,35±1℃。(2),MLVSS=14.3gL,1—;2—;3—;4—;5—;6—;7—;8—;9—;10—ASBR;11—;12—;13—;14—;15—。1 (SVI)50.1mLg,。(3),1。1 mgL(pH)CODCrBOD5SSNH+4-NpH4500~53002700~3850580~100035~7022532793.5~4.0 (4),25gGAC(0.5mm),。(5),OLR,HRTOLR。18 20062241DOI:10.13205/j.hjgc.2006.01.004,HRT9d,OLR0.5kgm3·d,pHNaHCO36.8~7.0。12h,1;CODCr70%,HRT,OLR。HRT1.5d,OLR3kgm3·d,8h,3。(6)1:10min,10min,HRT9d,40~60min,HRT1.5d,20min,1。(7)SRT,MLSSMLSS(SRT=MLSSMLSS),MLSS,,。2 HRT9.0d,OLR0.51kgm3·d。OLR,HRT。118d,CODCr7.83kgm3·d,HRT0.6d,COD89.7%,3.9kgm3·d,70%,16359mgL,18d,1~3mm,1,。。3 3.1 最佳进水时间反应时间 ,pH6.0。pH,pH[4]。pH,ASBR(TfTr),pH。2。HRT0.6d,CODCr8.0kgm3·d,pH,pHNaHCO3。2,pH,CODCr,。pH5.0,NaHCO3,2.5h4.5h,CODCr88.4%,VFA108.7mgL,。,VFA,,pH,,,。2 TfTr-pHpHTfTrCODCr(mg·L-1)CODCr(mg·L-1)VFA(mg·L-1)%7-247-257-267-277-287-297-307-318-18-28-38-48-58-66.56.56.06.06.06.05.55.55.55.55.05.05.05.07.17.06.76.76.97.06.66.76.97.06.66.66.87.0161616161.55.51.55.51.55.51.55.5252525252.54.52.54.54987702—85.924810605109.587.4246571194—74.3745241079283.576.164380766—82.504199422110.489.9652301236—76.3850791197295.476.424900721—85.284730520114.289.0150141167—76.7248391120321.476.854657721—84.514495521108.788.403.2 在常温及较低温度下的处理能力(),、,。、,。,,,CODCr3~5kg(m3·d)。、2、34。2 24:19 200622413 4 (1)CODCr,25℃,25℃。25℃,83.45%,;20℃,73%;15℃,57%。(2),25℃,3.5~3.6m3m3·d;20℃,2.9~3.0m3m3·d;15℃,2.2~2.3m3m3·d;,。(3),25℃,71%~73%;20℃,75%~76%;15℃,80%。:①,CO2;②,CO2H2,CO2。(4),,,,,,。3.3 pH值、搅拌频率以及消毒液的冲击的影响 3.3.1 ,。(min)(min):258、555、1050、2050、20405,ASBRCODCr,5。5 5:,CODCr,258,71.6%,1050,89.7%,2040,68.2%。,MLVSS。10min。3.3.2 pH pH。pHNaHCO3,6。6 pH (1)pH5.06.0,ASBRpH,7.0,。(2)ASBR:①,,VFA,pH;②VFA,ASBRpH。3.3.3 ,。,,。[5],100mgL,3min100%。20 20062241,100mL,;1,、。11d,CODCr。HRT0.6d、CODCr8kg(m3·d)、10min、25℃,,7。7 7,CODCr4104.5~4532.5mgL,CODCr2000mgL,。,。,,,。,:①,;②,;。4 (1),,VFA,pH,NaHCO3,。8h、HRT0.6d、CODCr8kg(m3·d)、35℃,2.5h4.5h,pH5.0,VFA108.4mgL,CODCr88.4%,。(2)。,25℃,25℃。HRT0.6d,CODCr7.94kg(m3·d),1d1℃,25℃,CODCr83.45%,20℃,70.68%,15℃,57.26%;,,25℃,3.6m3(m3·d),71.68%,20℃,2.9m3(m3·d),76.28%,15℃,2.3m3(m3·d),80.37%。(3),,258、555、1050、2050、20405,CODCr71.6%、77.2%、89.7%、79.8%、68.2%,1050。(4)pH,HRT0.6d,CODCr8kg(m3·d),2.5h4.5h,pH5.0~6.0,pH7.0,。(5),。。[1] SungS,DagueR.R..Laboratorystudiesontheanaerobicsequencingbathreactor.WaterEnvironmentResearch,1995,67(3):294-301.[2] ..,2002,18(6):127-130.[3] ,,.ASBR.,2003,24(1):87-90.[4] ..:,1991,46-47.[5] ..,1998,14(7):400. 200092 (021)65980567E-mail christjob@126.com2005-05-3021 20062241CATALYTICOXIDATIONOFNAPHTHALENE-1,5-DISULFONICACIDINSUPERCRITICALWATERLinChunmian TaoXuewen XuMingxianetal(7)………………………………………………………………Abstract Naphthalene-1,5-disulfonicacidwasoxidizedinsupercriticalwaterusingMn2O3γ-Al2O3andV2O5γ-Al2O3ascatalystsinapacked-bedflowreactor.TheresultsshowedthatMn2O3γ-Al2O3andV2O5γ-Al2O3catalystshadthedesiredeffectsofacceleratingthedegradationofnaphthalene-1,5-disulfonicacid,theTOCremovalratecouldreachover90%atapressureof24MPaandatemperatureof380~440℃.ThecatalyticeffectsofMn2O3γ-Al2O3andV2O5γ-Al2O3catalystswereenhancedwithbothraisingtemperatureandreducingpHvalue,andfirstenhancedandthenabatedwiththeextensionofresidencetime.Keywords catalyst,supercriticalwateroxidation,naphthalene-1,5-disulfonicacidanddegradationPRINCIPLEANDDESIGNOFBIOLOGICALAERATEDFILTER(BAF)PROCESSFORWASTEWATERTREATMENTZhangWenyi ZhaiJianping ZhengJunetal(9)………………………………Abstract Itwasexpoundedtheprincipleofbiologicalaeratedfilter(BAF)processandthestructureofBAFbasin,andamethodofusingflyashandclayforfiltermediawasalsointroduced.Thedesign&calculationofBAFincludevolumeoffiltermedia,totalareaoffilterbasin,heightofthebasin,waterandairdistributingsystem,backwashsystemandthetouchtimeofwatertothefilter.Asanexample,adesignofmunicipalwastewatertreatment2500m3dusingBAF(DCandDN)wasintroduced.Keywords biologicalaeratedfilter(BAF),filtermedia,wastewatertreatmentandorganicloadingTREATMENTOFEARLYANDLATELANDFILLLEACHATESBYCOMPOSITEPROCESSOFMAP-SBBRYangZhaohui LiChen ZengGuangmingetal(14)…………………………………………………………Abstract Basedontheurbanlandfillleachatescharacteristicofthedailyvariationalwaterqualityalongwiththelandfillprocess,thecompositeprocessofMAP-SBBRwasusedtotreattheearlylandfillleachateandthelatelandfillleachate.ThetestresultsshowedthatundertheoptimumrunningconditionsoftheMAPandSBBR,thetotalremovalratesofNH4-NandCODCrwere99.6%and94.0%respectivelyfortheearlylandfillleachate;andthetotalremovalratesofNH4-NandCODCrwere99.3%and87.1%respectivelyforthelatelandfillleachate.MAP-SBBRprocesswassuitableforthetreatmentofeveryperiodlandfillleachate.Keywords landfillleachate,MAP,SBBRandnitro
本文标题:ASBR反应器处理豆制品废水的试验王亮
链接地址:https://www.777doc.com/doc-6530716 .html