冬季垃圾填埋场渗滤液回灌水量平衡的实验研究

Experimental study on water balance of landfill leachate in winter

渗滤液回灌的水量平衡是垃圾填埋场渗滤液回灌处理法工程应用的关键问题之一。着重研究了冬季渗滤水回灌的水量平衡状况。结果表明 ,冬季回灌水量仍可通过土壤蒸发得到大量削减 ,径流量、土壤渗出水与下渗水的比值大于春夏秋三季 ,平均蒸发量小于此三季。回灌条件下 ,土壤湿润度提高 。

The water balance of landfill leachate is one of important problems in practical engineering of leachate recirculation treatment. The water balance of landfill leachate recirculation in winter was studied emphatically. The results showed that the recirculated water quantity would be reduced largely through soil evaporation, the percents between runoff or leachate and the water entering soil in winter were greater than those in other seasons, but the average evaporation was less than those in other seasons. The leachate recirculation would improve soil moisture and increase soil evaporation.\;