EGSBAO工艺处理高浓度淀粉生产废水

EGSBA/O石慧1,薛建良2,崔芹芹3,王笑冬1(1.山东十方圆通环保有限公司,山东济南250101;2.中国石油大学化学化工学院,山东青岛266555;3.青岛伊科思技术工程有限公司,山东青岛266061):利用EGSBA/O工艺处理高浓度淀粉生产废水,厌氧启动经过了驯化污泥提高负荷及满负荷运行三个阶段,EGSB反应器负荷达到20kgCOD/(m3d)左右EGSB启动完成后,A/O段处理效果也随之稳定当整个处理系统稳定后,对CODBOD5SS和NH3-N去除率分别达99.2%99.7%97.6%和97.9%,经过该组合工艺处理后,出水水质达到!污水综合排放标准∀(GB89781996)的一级标准:高浓度有机废水;厌氧膨胀颗粒污泥床反应器;沼气:X703.1:C:1000-4602(2010)10-0116-04EGSB-A/OProcessforTreatmentofHighConcentrationStarchWastewaterSHIHui1,XUEJianliang2,CUIQinqin3,WANGXiaodong1(1.ShandongShifangYuantongEnvironmentalProtectionCo.Ltd.,Jinan250101,China;2.CollegeofChemistryandChemicalEngineering,ChinaUniversityofPetroleum,Qingdao266555,China;3.QingdaoECSSTechnicalEngineeringCo.Ltd.,Qingdao266061,China)Abstract:Thecombinedprocessofexpandedgranularsludgebed(EGSB)reactorandA/Owasusedtotreathighconcentrationstarchwastewater.Anaerobicstartupinvolvesthreestages:sludgeacclimation,loadincrease,andfullloadrun.TheloadofEGSBreactorreaches20kgCOD/(m3d).OncompletionofEGSBreactorstartup,thetreatmenteffectinA/Ostagebecomessteadylater.Whenthetreatmentsystemisstable,theremovalratesofCOD,BOD5,SSandNH3-Nare99.2%,99.7%,97.6%and97.9%respectively.TheeffluentqualitycanreachthefirstclasscriteriaspecifiedintheIntegratedWastewaterDischargeStandard(GB8978-1996).Keywords:highconcentrationorganicwastewater;EGSBreactor;methane,(3000m3/d)11Tab.1DesigninfluentqualityanddischargestandardCOD/(mgL-1)BOD5/(mgL-1)NH3-N/(mgL-1)SS/(mgL-1)pH#12000#6500#500#30003~4#100#20#15#706~9,!∀(GB89781996)1废水处理工艺及设计参数11,(EGSB),,[12],[34]COD,116第26卷第10期2010年5月中国给水排水CHINAWATER&WASTEWATERVo.l26No.10May2010,11Fig.1Flowchartofwastewaterandsludgetreatmentprocess,,,pH,EGSB,EGSB,,,A/O,EGSBEGSBA(),,,,O(),CODBOD5,A/O,,,,A/O,,,,12∃1,,60m3,HRT30min1,3mm;3(21)%1,,1650m3,HRT12h3(21);,4~8W/m3&1,,120m3,4,HRT50min4(22)2∋EGSB2,2140m34(22)EGSB(A/O,8000m34,3(21);3(21);3001)1,[0.80m3/(m2h)],,764m3,1,3(21)∗,150m3+60m2,111,1,,300m3,12启动运行及处理效果∃EGSBEGSB:a.,EGSBUASB,20kgVSS/m3,3.0kgCOD/(m3d),COD3000~4500mg/LpH6.5~7.5b.,COD,2COD80%,COD25791618kgCOD/(m3d)1−1CODVFA,16.0kgCOD/(m3d),c.16.0kgCOD/(m3d),2~3117石慧,等:EGSBA/O工艺处理高浓度淀粉生产废水第26卷第10期18.0kgCOD/(m3d),20kgCOD/(m3d),COD10000~12000mg/L,COD90%%A/OEGSB,A/O,10d,MLSS4000mg/LEGSB,A/O;EGSB,A/O,COD100mg/L,pH7.5~8.0,,422Tab.2TreatmenteffectofunitsmgL-1CODBOD5NH3-NSS11051.26215.5480.82400EGSB10011.545947.1470.41800A/O1158.4420.2378.390088.715.710.2558.6:2,EGSBA/O,,,CODBOD5SSNH3-N99.2%99.7%97.6%97.9%,!∀(GB89781996)&7,,EGSB,41.02.105N/m2.01.105N/m,,1.5gCH4/(gVSSd)CODBOD5SSNH3-N95%3运行过程出现的问题及解决措施EGSB18.0kgCOD/(m3d)20kgCOD/(m3d),100~120m3/h,,,,,,,,,,,,4经济效益分析1083.60,586292.62010560812,36840kJ/m3,,,,20930~25120kJ/m3,,,0.4m3/kgCOD,3000m3/d9600m3/d5结论∃EGSBA/O,COD10000~12000mg/L,COD100mg/L,!∀(GB89781996)%EGSB,20kgCOD/(m3d),CODBOD5SSNH3-N99.2%99.7%97.6%97.9%:[1],.[J].,1992,12(2):21-23.[2]GeorgeRZoutberg,ZerrinEker.Anaerobictreatmentofpotatoprocessingwastewater[J].WaterSciTechno,l1999,40(1):297-304.[3],.EGSBDMF[J].,2007,27(7):30-32.[4],,,.EGSB[J].,2008,37(4):262-288.[5].EGSB+TCBS[J].,2007,20(2):45-47.:13589339553E-mail:[e-mail]::2009-12-31118第26卷第10期中国给水排水