Juhna Talis, Klavins Maris, Eglite Linda
Department of Environmental Engineering, Luleå University of Technology, SE 97187, Sweden.
Chemosphere. 2003 Jun;51(9):861-8. doi: 10.1016/S0045-6535(03)00108-5.
Experiments in batch equilibrium system were carried out to evaluate the importance of physical and chemical factors determining the sorption efficiency of humic substances (HS) on aquifer material, which has been used for artificial recharge of groundwater (ARG) in drinking water production. Results showed that an increase of the amount of clay in the aquifer material and a decrease of pH in water increased the sorption efficiency. The sorption of higher molecular weight, more hydrophobic and aromatic HS (Aldrich and forest soil humic acids) were greater than the sorption of acidic HS (river fulvic acids), either on the aquifer material or to its representative sorbing phases, clay and organic matter. The sorption on the aquifer material was largely due to physical sorption (hydrophobic attractions). This study showed the importance of HS composition on their removal during ARG and contributed to an understanding of the HS sorption mechanisms in this process.
在间歇平衡系统中进行了实验，以评估物理和化学因素对腐殖质（HS）在含水层材料上吸附效率的重要性，该含水层材料已用于饮用水生产中的地下水人工回灌（ARG）。结果表明，含水层材料中粘土含量的增加和水中pH值的降低会提高吸附效率。无论是在含水层材料上还是在其代表性的吸附相（粘土和有机物）上，高分子量、疏水性更强且具有芳香性的腐殖质（Aldrich腐殖酸和森林土壤腐殖酸）的吸附量都大于酸性腐殖质（河流富里酸）的吸附量。在含水层材料上的吸附主要是由于物理吸附（疏水作用）。本研究表明了腐殖质组成在人工回灌过程中对其去除的重要性，并有助于理解该过程中腐殖质的吸附机制。
