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垃圾渗滤液水溶性有机物在土壤中的吸附行为

Keywords: 垃圾渗滤液,土壤介质,吸附

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Abstract:

采用序批次吸附试验,研究了不同填埋年限垃圾的渗滤液在土壤中的吸附影响。结果表明,对来自不同填埋年限的垃圾渗滤液在2种土壤上的吸附等温线采用“原始质量吸附方程”拟合表现出良好的相关性(r2>0.96),其吸附量与土壤中有机碳含量、粘粒含量及电荷密度与种类等有关。在垃圾渗滤液的同一初始浓度下,红壤对垃圾渗滤液的平均净吸附量是潮土的1.74倍。填埋年限较长的垃圾渗滤液与土壤有较高的亲和力。

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