垃圾渗滤液同时硝化反硝化处理中有机污染物去除效果

采用同时硝化反硝化对某垃圾填埋场渗滤液进行处理，并对有机物去除效果进行分析。实验结果表明，反应器对渗滤液中COD、氨氮、总氮和部分有机物具有较好的处理效果，COD、氨氮和总氮的平均去除率为82.34%、99.82%和65.31%。GC-MS分析总共检测出53种主要有机污染物，其中邻苯二甲酸二丁酯等29种有机物的去除率达100%，乙基苯等5种有机物的去除率高于90%，邻苯二甲酸二异辛酯等8种有机物的去除率介于60%和90%之间，此外还有4-苯基戊醇等5种有机物去除率低于60%。反应器内存在亚硝氮途径的脱氮反应形式。

Removal effect of organic pollutants during the course of treating landfill leachate with simultaneous nitrification and denitrification

Removal effect of organic pollutants in the landfill leachate, which treated by simultaneous nitrification and denitrification, were analysed in the paper. It was demonstrated that well removal effect of COD, NH₃-N, total nitrogen and organic matters could be reached in the sequencing batch reactor, corresponding to the average removal efficiencies of COD, NH₃-N, total nitrogen being 82.34%, 99.82% and 65.31%, respectively. 53 species of organic matters had been detected by gas chromatograph-mass spectrometer (GC-MS) method. Among them, 29 species of organic compounds were completely removed, for example, butyl phthalate. 5 species of organic compounds were removed more than 90%, for example, ethylbenzene. Removal efficiencies of 8 species of organic compounds were obtained between 60% and 90%, for example, diisooctyl phthalate. Moreover, there were still 5 species of organic compounds that the removal efficiencies were below 60%, for example, 4-phenyl-pentanol. It indicated that there was part denitrification via nitrite in the system.