_石化污水厂二级出水溶解性有机物分级解析研究

中国环境科学2012,32(11)：2017~2022ChinaEnvironmentalScience石化污水厂二级出水溶解性有机物分级解析研究孙青亮1,2,吴昌永2,胡翔1,周岳溪2*,高祯3,徐敏3(1.北京化工大学化学工程学院,北京100029；2.中国环境科学研究院水污染控制技术研究中心,北京100012；3.河北工程大学城市建设学院,河北邯郸056038)摘要：以某石化污水处理厂二级出水为研究对象,采用大孔吸附树脂将污水中溶解性有机物分离成亲水性物质、疏水酸性物质、疏水中性物质和疏水碱性物质4个组分,分析了各组分的有机物的组成特征、三维荧光光谱特征及红外光谱特征.结果表明,亲水性物质和疏水酸性物质分别占水样中溶解性有机碳的49%和29%,是该石化污水厂二级出水中的主要物质类别.亲水性物质中含有较多的生物源腐殖质类物质,疏水中性物质含有较多的芳香族蛋白质和溶解性微生物代谢产物类物质.4种组分的红外光谱图中600~1200cm-1波数的指纹区波峰数量最多,多为芳香类同分异构体化合物.关键词：石化废水；溶解性有机物组分；紫外光谱；三维荧光光谱；红外光谱中图分类号：X703.1文献标识码：A文章编号：1000-6923(2012)11-2017-06Classificationandanalysisofdissolvedorganicmatterintheeffluentofapetrochemicalwastewatertreatmentplant.SUNQing-liang1,2,WUChang-yong2,HUXiang1,ZHOUYue-xi2*,GAOZhen3,XUMin3(1.InstituteofChemicalEngineering,BeijingUniversityofChemicalTechnology,Beijing100029,China；2.ResearchCenterofWaterPollutionControlTechnology,ChineseResearchAcademyofEnvironmentSciences,Beijing100012,China；3.InstituteofUrbanConstruction,HebeiUniversityofEngineering,Handan056038,China).ChinaEnvironmentalScience,2012,32(11)：2017~2022Abstract：Dissolvedorganicmatter(DOM)inabiologicaleffluentcollectedfromatypicalpetrochemicalwastewatertreatmentplantwasisolatedandfractionatedusingresinadsorptionmethod.Thefractionswereoperationallycategorizedashydrophilicsubstances(HIS),hydrophobicacids(HOA),hydrophobicneutrals(HON),andhydrophobicbases(HOB).Thedissolvedorganiccarbon(DOC),specificUVabsorbance,threedimensionalexcitationemissionmatrixfluorescencespectroscopy(3DEEM),ultravioletspectrumandinfra-redspectrumcharacteristicsofthe4fractionswereanalyzed.HISandHOAwerethemainfractionsandtheyoccupied49%and29%ofDOCintheeffluent,respectively.ThefractionofHONcontainedmorearomaticproteinsandsolublemicrobialproducts,whilethefractionofHIScontainedmorehumus,whichwerepredominatelymicrobialproductsderivedbytheanalysisof3DEEM.Thepeaksofinfra-redspectrumofthe4fractionsmainlydistributedinthedistrictof600~1200cm-1,indicatingthatsimilarcompoundsofbalmyisomersexistinthewastewatersamples.Keywords：petrochemical