基于灰色层次分析法的渗滤液浓缩液回灌填埋体评价

为科学合理地选择渗滤液浓缩液回灌的最优填埋体,采用灰色层次分析法对回灌填埋体进行了综合评价。首先构建灰色层次分析法的层次结构模型及评价指标,并根据层次分析法计算各评价指标权重,然后基于灰色关联理论建立评价指标关联系数矩阵,最后根据各评价指标权重及其关联系数矩阵建立综合评价矩阵。采用建立的综合评价方法对垃圾年份分别为1 a、5 a和15 a的回灌填埋体进行了综合评价。结果表明,垃圾年份为15 a的回灌填埋体与理想方案的关联度最大,为最优的回灌填埋体,其次为5 a、1 a。

Evaluation of leachate concentrate recirculation landfill based on the grey analytic hierarchy process

To provide certain theoretical basis for selecting optimal recirculation landfill scientifically and reasonably, comprehensive evaluation of leachate concentrate recirculation landfill based on the grey analytic hierarchy process was researched. Firstly, the hierarchical structure model and evaluation index of grey analytic hierarchy process were constructed and the weights were calculated. Secondly, the evaluation index matrix was established based on the grey correlation theory. And then, the comprehensive evaluation matrix was established. This method was applied for the evaluation of different landfill ages which were one year, five years and fifteen years. The results showed that the correlation degree between the fifteen years recirculation landfill and ideal scheme was the largest, which is followed by the five years and the one year. So the fifteen years recirculation landfill was the best.