焦化废水生物处理工艺段GCMS分析及粉末活性炭吸附实验研究_任源

5.010.015.020.025.030.035.040.00.00.51.01.5(x1,000,000)5.010.015.020.025.030.035.040.02.55.0(x100,000)02-0-026焦化废水生物处理工艺段GCMS分析及粉末活性炭吸附实验研究焦化废水生物处理工艺段GCMS分析及粉末活性炭吸附实验研究任源*，张小璇，肖俊霞，韦朝海，张小璇，肖俊霞，韦朝海华南理工大学环境科学与工程学院，510641，广州E-mail:ceyren@scut.edu.cn焦化废水是煤高温干馏、煤气净化、副产品回收与精制过程中产生的工业有机废水，废水排放量大，水质成分极其复杂。本研究采用气质联用仪检测了焦化废水A/O/O工艺各工段的主要成分，分析了成分变化对生物处理过程的影响。针对调试过程中COD未达到一级标准及剩余污染物难以生物降解的现状，进行了粉末活性炭吸附生物滤池出水实验，酸性条件下TOC去除率可达到66.7％。(a)(b)Fig.1GCMSchromatogramofcokingwastewater:(a)inflow;(b)outflow关键词：焦化废水；GCMS；活性炭；吸附。参考文献：[1]AmericanPublicHealthAssociation(1992)StandardMethodsfortheExaminationofWaterandWastewater.AmericanPublicHealthAssociation,Washington,D.C.[2]TANGShou-yin,JINYi-zhong,DAIYou-zhi,TANTian-en.GC/MSanalysisofOrganicConstituentsinRefineryWasteWater[J].JournalofChineseMassSpectrometrySociety,1994,15(3):36-41GCMSAnalysisofCokingWastewaterandAdsorptionofTOCbyPowderedActivatedCarbon*YuanRen,Xiao-XuanZhang,Jun-Xia,Xiao,Chao-HaiWeiCollegeofEnvironmentalScienceandEngineering,SouthChinaUniversityofTechnology,510641,GuangzhouCokingwastewaterisacomplexorganicwastewatergeneratedinthecoalcoking,coalgaspurificationbyproductrecoveryandrefineryprocessesofcokeplants.Themaincompoundsofanaerobic/aerobic/aerobicprocesseswereanalyzedbyGCMS,manymono-andpoly-cyclicnitrogen-containingaromatics,oxygen-containingheterocyclicsandpolynucleararomatichydrocarbons(PAHs)intheoutflowweredetectedthoughtheCODwaslowerthan200mg/L,theseorganiccompoundsarehardlybiodegradedandanadvancedtreatmentisneeded.PowderedactivatedcarbonwasusedtoadsorbtheresidualPAHs.TheTOCremovalratiois66.7%whenthepHwas3.85.KEYWORDS:cokingwastewater;GCMS;activatedcarbon;adsorption