垃圾填埋场渗滤液水量平衡的实验研究

Experimental Study on Water Balance of Landfill Leachate

通过回灌条件下的水量平衡实验,分析了回灌条件下水分运动各个要素(降水、径流、下渗、蒸发)之间的关系。在回灌条件下,土壤蒸发能满足渗滤液的水量平衡,下渗水量通过土壤蒸发作用得以大量削减。土壤水分饱和程度对蒸发量的影响是明显的,土壤水分供给充足时,土壤蒸发按蒸发能力进行,蒸发量大而稳定。

Experiment on water balance under recirculating condition has been conducted, and the relations among factors in water movement have also been analyzed. Under experimental conditions, soil moisture evaporation could suffice water balance of leachate, water quantity could be reduced by soil evaporation. Leachate recirculation could improve soil moisture content and saturated degree, thus affect evaporation obviously. With the saturated soil moisture, soil evaporation was performed with potential soil evaporation.