新鲜渗滤液中挥发性有机物的种类及其转化研究  

Category and Transformation of Volatile Organic Pollutants during the Treatment of Fresh Landfill Leachate

作　　者：崔锋[1,2] 

机构地区：[1]北京大学深圳研究生院环境与能源学院,广州深圳518055 [2]北京大学环境科学与工程学院,北京100871

出　　处：《应用基础与工程科学学报》2012年第6期951-959,共9页Journal of Basic Science and Engineering

摘　　要：针对新鲜垃圾填埋场渗滤液,采用GC-MS法分析渗滤液中挥发性有机物在处理工艺各单元存在的类型,并对有机物转化的机理进行初步探讨.检测结果显示,渗滤液原液中只检测出4种,分别为(3,6-亚甲基-1,2,3,4,4a,5,6,8a八氢萘,2-甲氨基,氧化氮),(1,2苯二羧酸-单(2-乙基己基)酯),(2-丙醇,1-[(1-甲乙基)氨]-3-苯氧基)和月桂酰胺.通过厌氧+BAF(曝气生物滤池)+AO(缺氧好氧)+MBR(膜生物反应器)+RO(反渗透)工艺进行处理,原水中的挥发性有机物均得到生物降解.出水中检测出的物质为2,2'-亚甲基-双(4-甲基-6-叔丁基苯酚),为原水中有机物的降解产物,具有一定的环境风险性.The GC-MS analysis was employed to investigate the category of the volatile organic pollutants in different units for the treatment of fresh landfill leachate. The transformation mechanism of organic pollutants was preliminarily discussed. The results showed that only four pollutants were detected in the raw landfill leachate, including {3,6-Methano-1,2,3,4,4a,5, 6,8a-octahydronaphthalene, 2-（ methylimino ） -, N-oxide }, { 1,2-Ben zenedicarboxylicacid, mono （ 2-ethylhexyl ） ester }, { 2-Propanol, 1-[ （ 1-methylethyl ） amino ], 3-（ phenylmethoxy ）-t and dodecanamide. After the treatment process consisting ＂anaerobic ＋ BAF（ Biological Areated Filter） ＋ A/O（Anoxic/Oxidation） ＋ MBR （Membrane bioreactor） ＋ RO （Reverse Osmosis）＂ units, all the volatile organic pollutants were biodegraded. A new kind of organic pollutant, named Phenol 2,2＇-methylenebis [ 6- （1,1-dimethylethyl） -4-methyl-, was present in the final effluent, which should be formed as the biodegradation product and has potential environmental risks.

关 键 词：填埋场垃圾渗滤液 生物处理 挥发性有机物 GC-MS 

分 类 号：X703.1[环境科学与工程—环境工程]