垃圾渗滤液水溶性有机物在土壤中的吸附行为及机理研究

The study on the adsorption behavior and mechanism of the dissolved organic matter in the Landfill leachate

研究了不同填埋年龄的垃圾渗滤液中水溶性有机物在土壤中的吸附行为及机理。结果表明,不同填埋年限的垃圾渗滤液溶解性有机物在2种土壤上的吸附等温线具有很好的相关性。对于同一初始溶解性有机物浓度下,红土的吸附量要高于潮土,封对其吸附量与分子粒径大小呈负相关。pH值越高,土壤对溶解性有机物的吸附量越少。

In this paper,we have studied the adsorption behavior and mechanism of the dissolved organic matter in the Landfill leachate with the different landfill ages.The results showed that different landfill ages,the landfill leachate dissolved organic matter in 2 types of soil on the adsorption isotherms have good correlation.For the same initial concentrations of dissolved organic compounds,the adsorption of clay is higher than that of fluvo-aquic soil,and related to the adsorption amount and molecular size was negatively.In addition,the higher pH value,the less the amount of adsorption of dissolved organic matter in soils.