Leaching unit by column test and its application to lyner and closing system in waste landfill

从日本、美国和欧洲垃圾填埋场的垃圾填埋场通风系统概念的角度进行了考察和回顾。日本的规定是美国和欧洲渗透率值的十倍。主要结论如下：(1)通过柱状试验和间歇试验评价了废物的拆分特性。经柱试，分离率达10倍。在间歇试验中应排除pH和温度的影响，以讨论与柱试验结果的差异。(2)间歇试验中重金属的溶解表明，等温吸附线值与液固比和干燥方式无关。这条直线由Freundlich方程定义得很好，其中包含两个经验参数，可供工程实践估计。(3)利用多胞模型对垃圾填埋场渗滤液的穿透曲线进行了分析。计算表明，渗滤液中污染物的控制和减少，即使在封闭填筑后的100年内，水处理设施仍将继续运行。

Check and review were made from the view point of concept of lyner system among Japan, USA and Europe in waste landfill. Japanese regulation takes as ten times of permeability value as USA ana Europe do. Conclusions are summarized as follows ;(1)Resolution characteristics in waste material was estimated by column and batch tests. Ten times of resolution rate in column test was obtained by column test. Effects of pH and temperature should be cleared out in batch test to discuss the difference from column test results.(2)Heavy metal resolution in batch test indicates that isothermal adsorption line takes an unique value independently of liquid-solid ratio and drying manner. The line is well defined by the Freundlich equation containing two empirical parameters to estimate for engineering practice.(3)Analysis of breakthrough curve in leachate from waste landfill was carries out by the Multi Cell model. The computations showed that water treatment facility will be continued to work for control and decrease of contaminant in leachate even in 100years later after closing fill.