垃圾渗滤液水溶性有机物在土壤中的吸附行为  

Sorption Behavour in Soils of Dissolved Organic Matter with Landfill-leachate

作　　者：付美云[1] 周立祥[1] 

机构地区：[1]南京农业大学资源环境学院环境工程系

出　　处：《农业环境科学学报》2006年第4期964-968,共5页Journal of Agro-Environment Science

基　　金：教育部新世纪优秀人才支持计划(NCET-04-0505)

摘　　要：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。Batch adsorption experiments were conducted to measure the sorption of landfill-leachate in soils derived from different landfill sites. The results showed that sorption isotherm of different landfill-leachate in the soils were fit for the initial mass isotherm and ,well in linear correlation. Under identical concentration, average net adsorption of landfill-leachate in the acidic soil was 1.74 times of that in the calcareous, and landfill-leachte having higher amounts of larger-molecular-weight or hydrophobic fractions would be preferentially adsorbed by soils.

关 键 词：垃圾渗滤液 土壤介质 吸附 

分 类 号：S153.3[农业科学—土壤学]