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1、第59卷第1期化工學報Vol159No112008年1月JournalofChemicalIndustryandEngineering(China)January2008研究論文用循環(huán)曝氣生物濾池工藝處理煉油堿渣廢水1,2132謝文玉,鐘理,陳建軍,鐘華文(12華南理工大學化工與能源學院,廣東廣州510640;茂名學院化工與環(huán)境工程學院,廣東茂名525000;3蘇州大學化學化工學院,江蘇蘇州215123)摘要:采用新型的兩級循環(huán)曝氣生物濾池工藝,對稀釋中和后的煉油堿渣廢水進行生物處理工業(yè)試驗。研究了溶解氧質(zhì)量濃度、水力停留時間、營養(yǎng)物質(zhì)、pH值、溫度和反
2、沖洗周期等因素對堿渣廢水生物處理效果的影響。在適宜的操作條件下,煉油堿渣廢水經(jīng)兩級生物處理后,COD、硫化物、揮發(fā)酚和石油類平均去除率分別-3-1達到8913%、9918%、9316%和8517%,其中COD和硫化物的平均去除負荷分別達到8137kg·m·d和-3-14144kg·m·d。循環(huán)曝氣生物濾池是一種高負荷、高效率、反沖洗周期長和低成本的煉油堿渣廢水處理方法,具有良好的應用前景。關鍵詞:循環(huán)曝氣生物濾池;堿渣廢水;煉油廠;生物處理中圖分類號:X703文獻標識碼:A文章編號: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
