催化湿式过氧化氢氧化处理垃圾渗滤液及其DOM光谱分析

Hydrogen peroxide catalytic wet oxidation of leachate and the spectroscopic analysis of dissolved organic matters

采用催化湿式过氧化氢氧化法对转运站垃圾渗滤液进行了处理,研究了影响催化湿式过氧化氢氧化效果的多个因素,并采用三维荧光和紫外-可见光谱对催化湿式过氧化氢氧化处理后水样中的溶解性有机物(DOM)成分变化进行了表征分析.结果显示,在最优实验条件下,COD去除率可达90%以上.光谱分析结果表明,渗滤液中的DOM组分降解效果明显,含有芳香环、双键和羰基共轭体系的有机物的去除效果也比较显著.

In this paper,hydrogen peroxide catalytic wet oxidation was used to treat leachate from refuse transfer station. Several effects on the catalytic wet oxidation were studied. Three-dimensional excitation-emission matrix（ 3DEEM） fluorescence spectroscopy and UV-Vis spectroscopy were used to characterize the change of dissolved organic matter（ DOM） for the pre and post catalytic wet oxidation treatment. The results showed that under the optimal conditions,COD removal rate could reach more than 90%; and the spectroscopic analysis results showed that the hydrogen peroxide catalytic wet oxidation had significant effect on the degradation of the DOM in the leachates. DOMs containing aromatic nucleus and the conjugate double bond and carbonyl conjugate could be removed effectively.