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当前位置:首页 > 商业/管理/HR > 公司方案 > 常温下IC反应器处理造纸废水的颗粒污泥生物学特性曾国敏
IC曾国敏, 马邕文(华南理工大学环境科学与工程学院,广东广州510006) : 采用IC反应器处理OCC造纸废水,研究了常温、不同HRT下的厌氧颗粒污泥特性。结果表明,当HRT为8.3h时,OCC造纸废水比例按10%、30%、50%、80%、100%递增,经过20d的运行,造纸废水完全取代了人工配制废水,且出水COD值保持在500mg/L以下,颗粒污泥驯化完成。用造纸废水驯化后的污泥,其沉降速度在25.02~98.96m/h之间,污泥浓度SS为66.5g/L、VSS为44.69g/L,VSS/SS值为67.2%。随着HRT的缩短,颗粒污泥的平均粒径先增大后减小,SS和VSS都呈先上升后下降的趋势。当HRT为5.5h时,SS和VSS均达到最大,分别为75.2和55.42g/L,VSS/SS值为73.7%。在胞外多聚物中,蛋白质的含量较高,蛋白质与多糖的比值在1.33~2.78之间。随着HRT的逐渐缩短,颗粒污泥的产甲烷活性先是大大降低而后逐渐稳定,辅酶F420含量与产甲烷活性的变化趋势相同。 : IC反应器; 厌氧颗粒污泥; 胞外多聚物; 产甲烷活性; 辅酶F420:X703 :C :1000-4602(2011)05-0083-04 :(2008A080800003)BiologicalCharacteristicsofAnaerobicGranularSludgeduringTreatmentofPapermakingWastewaterinICReactoratNormalTemperatureZENGGuo-min, MAYong-wen(CollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,Guangzhou510006,China) Abstract: Thecharacteristicofanaerobicgranularsludgeininternalcirculation(IC)reactortrea-tingOCCpapermakingwastewaterwasstudiedatnormaltemperatureanddifferentHRTs.AttheHRTof8.3h,theproportionofthewastewaterisincreasedto10%,30%,50%,80%and100%.After20days,thewastewaterfromOCCsystemissubstitutedforthesyntheticwastewatercompletelyandtheefflu-entCODismaintainedbelow500mg/L.Inthiscase,theacclimationofanaerobicgranularsludgeiscompleted.Afteracclimation,thesettlingvelocityofthesludgeisintherangeof25.02to98.96m/h,SSis66.5g/L,VSSis44.69g/LandVSS/SSis67.2%.WiththedecreaseofHRT,theaveragepar-ticlesizeisincreasedfirstlyandthenreduced,whichisthesameasSSandVSS.WhenHRTis5.5h,SSandVSSreachthemaximum,being75.2g/Land55.42g/Lrespectively,andVSS/SSis73.7%.Fortheextracellularpolymericsubstances(EPS),theproteincontentishigher,andtheratioofproteintopolysaccharideisbetween1.33and2.78.Specificmethanogenicactivity(SMA)ofgranularsludgeissignificantlyreducedfirstlyandthengraduallystable.CoenzymeF420ingranularsludgeshowsthesametrend.·83·第27卷 第5期2011年3月 中国给水排水CHINAWATERWASTEWATER Vol.27No.5Mar.2011 Keywords: internalcirculationreactor; anaerobicgranularsludge; extracellularpolymericsubstances; specificmethanogenicactivity; coenzymeF420 (IC)PAQUES2080UASB,、、、[1],[2~4]。,。,,COD、SS,,,。[5],[6]。IC,、。ICOCC,,OCC。1 材料与方法1.1 IC。200mm,25.1L,1272mm,(350、550、750、1020mm)4。1.2 OCC,pH、COD1500~2500mg/L、SS140~280mg/L。1.3 IC。,34.05~109.75m/h,SS64.5g/L,VSS48.2g/L,VSS/SS72.8%。1.4 。,,12.5~24.5℃。,HRT8.3h,(10%、30%、50%、80%、100%)。,。,IC、、F420。1.5 COD:;SSVSS:;:;:;:;:;:—;:[7];F420:[8]。2 结果及讨论2.1 OCC10%、30%、50%、80%、100%,IC3d,COD500mg/L。20d,,COD70%~90%,,。,,,。,,,。,,25.02~98.96m/h,SS66.5g/L,VSS44.69g/L,VSS/SS67.2%。2.2 2.2.1 、,。VSS,,,。·84·第27卷 第5期 中国给水排水 。HRT=5.5h,SSVSS,75.255.42g/L,VSS/SS73.7%。VSS,,。2.2.2 (EPS),、、。,EPS。EPS。ICHRTEPS,1。,EPSHRT,,。,,,1.33~2.78,HRT。HRT=8.3h,,1.33;HRT=5.5h,2.78;HRT5h,,,,。1 HRTFig.1 ContentofextracellularpolymericsubstanceswithHRT2.2.3 F420IC,F420,2。2,IC,HRTF420。,,,,,HRT,,HRT5h,。2,HRT,F420,,,F420。2 F420HRTFig.2 VariationofspecificmethanogenicactivityandcoenzymeF420withHRT3 结论① IC,HRT8.3h,20d。,25.02~98.96m/h,SS66.5g/L、VSS44.69g/L,VSS/SS67.2%。② HRT,SSVSS。HRT=5.5h,SSVSS,75.255.42g/L,VSS/SS73.7%。③ HRT,F420。HRT=8.3h,0.69gCODCH4/(gVSS·d),F4200.35μmol/gVSS,。④ ,,,1.33~2.31。(下转第88页)·85·曾国敏,等:常温下IC反应器处理造纸废水的颗粒污泥生物学特性第27卷 第5期3,TN,,,CODBOD5。2.3 ,TN,,8.6m/h14.3m/h,,TN(4)。,,。4 TNFig.4 InfluenceofwaterflowonTNremoval2.4 ,,。,、。6196258:00,TN10mg/L;6258:00,4.5h,,10mg/L,、4.5h。3 结论,、,,、4.5h。,。:[1] .(4)[M].:,2002.:13910391178E-mail:weifengzhen@yahoo.com.cn:2010-10-11(上接第85页):[1] ,,,.(IC)[J].,2001,17(1):26-29.[2] ,,.IC[J].,2008,34(1):66-68.[3] ,,,.IC[J].,2007,161(11):136-138.[4] .IC[J].,2001,20(3):58-59.[5] ,,,.[J].,2007,25(1):6-8.[6] .———IC[J].,2001,(6):45-48.[7] ,,,.、[J].,1994,15(4):23-26.[8] ,,.F420—[J].,1986,6(1):65-68.E-mail:zgm8306@163.com:2010-06-20·88·第27卷 第5期 中国给水排水
本文标题:常温下IC反应器处理造纸废水的颗粒污泥生物学特性曾国敏
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