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1、第59卷第1期化工学报Vol159No112008年1月JournalofChemicalIndustryandEngineering(China)January2008研究论文用循环曝气生物滤池工艺处理炼油碱渣废水1,2132谢文玉,钟理,陈建军,钟华文(12华南理工大学化工与能源学院,广东广州510640;茂名学院化工与环境工程学院,广东茂名525000;3苏州大学化学化工学院,江苏苏州215123)摘要:采用新型的两级循环曝气生物滤池工艺,对稀释中和后的炼油碱渣废水进行生物处理工业试验。研究了溶解氧质量浓度、水力停留时间、营养物质、pH值、温度和反
2、冲洗周期等因素对碱渣废水生物处理效果的影响。在适宜的操作条件下,炼油碱渣废水经两级生物处理后,COD、硫化物、挥发酚和石油类平均去除率分别-3-1达到8913%、9918%、9316%和8517%,其中COD和硫化物的平均去除负荷分别达到8137kg·m·d和-3-14144kg·m·d。循环曝气生物滤池是一种高负荷、高效率、反冲洗周期长和低成本的炼油碱渣废水处理方法,具有良好的应用前景。关键词:循环曝气生物滤池;碱渣废水;炼油厂;生物处理中图分类号:X703文献标识码:A文章编号:0438-1157(2008)01-0214-07Treatmentof
3、spentcausticwastewaterfrompetroleumrefineryusingcirculatingbiologicalaeratedfilterprocess1,2132XIEWenyu,ZHONGLi,CHENJianjun,ZHONGHuawen(1SchoolofChemicalandEnergyEngineering,SouthChinaUniversityofTechnology,Guangzhou510640,2Guangdong,China;CollegeofChemicalandEnvironmentalEnginee
4、ring,MaomingUniversity,Maoming525000,3Guangdong,China;SchoolofChemistryandChemicalEngineering,SuzhouUniversity,Suzhou215123,Jiangsu,China)Abstract:Thespentcausticwastewaterfrompetroleumrefinerycontainshighconcentrationsulfide,phenolandoilpollutants1Anoveltwostagecirculatingbiolog
5、icalaeratedfilter(CBAF)wasusedtotreatthewastewaterafterdilutionbywaterandneutralizationbyH2SO41Thefactorsofdissolvedoxygen(DO)concentration,hydraulicretentiontime(HRT),nutrient,pHvalue,temperatureandbackwashingcycle,whichaffectedthetreatmentefficiencyofspentcausticwastewaterwerei
6、nvestigated1TheexperimentalresultsshowedthattheaverageremovalpercentagesofCOD,sulfide,volatilephenolandoilpollutantswere8913%,9918%,9316%and8517%,respectivelyunderfeasibleconditions1Theaverageremoval-3-1-3-1loadingratesofCODandsulfidepollutantswere8137kg·m·dand4144kg·m·d,respecti
7、vely1TheexperimentalresultsalsoshowedthattheCBAFprocesswasakindofhighloadingrate,hightreatmentefficiency,longbackwashingcycleandlowcosttreatmentprocesswithagoodapplicationprospectforthetreatmentofspentcausticwastewaterfrompetroleumrefinery.Keywords:circulatingbiologicalaeratedfil
8、ter;spentcausticwastewater;petroleumrefi
