腐殖酸钠对柴油污染土壤的增溶解吸作用研究

Study of Diesel Adsorption from Contaminated Loess Soil by Using Humic Sodium

研究了表面活性剂和腐殖酸钠去除黄土中柴油类污染物.进行了十二烷基苯磺酸钠(LAS)、十二烷基硫酸钠(SDS)、腐殖酸钠以及腐殖酸钠 LAS、腐殖酸钠 SDS混合溶液体系对柴油的增溶解吸研究.实验表明柴油的解吸量随腐殖酸钠的浓度增大呈线性增加关系,且增溶效果的顺序为腐殖酸钠 LAS > 腐殖酸钠 SDS > 腐殖酸钠> LAS > SDS,最大去除率可达49.37%.

The removal of diesel from loess soil was investigated by using surfactant solutions and humic sodium. In comparison with the two anionic surfactantssodium dodecylbenzensulfonate (LAS),sodium dodecyl sulphate(SDS),humic sodium was respectively utilized in humic sodiumLAS and humic sodiumSDS solution systems to remove diesel from contaminated loess soil in the laboratory while the enhanced desorption capacities were measured. The experiments showed that the removal rate of diesel was linearly increased with the increase of humic sodium concentrations,and the sequence of solubility enhancement in the five solution systems was ranked as: humic sodiumLAS> humic sodium SDS> humic sodium> LAS> SDS. The maximum removal of diesel from the contaminated loess soil was up to 49.37%.