摘要
探讨了阴离子表面活性剂烷基苯磺酸钠(LAS)在不同土壤上的吸附行为,分析了LAS分子结构和土壤粒度、温度、盐度及pH等主要因素对LAS吸附量的影响,阐述了LAS在土壤中的降解机理,并分析了LAS分子结构、初始含量及环境中微生物数量、温度及pH等主要因素对LAS降解效率的影响,为以后LAS的扩大应用及其污染治理提供了充分的参考和依据。认为向土壤中排放LAS量会加大,污染程度会日趋严重,应着重消除影响LAS降解的环境限制因素,减少在土壤上的吸附量,最终解决LAS污染问题。
Adsorption and degradation behaviors of anionic surfactants sodium alkylbenezenesulfonate (LAS) on different soils are discussed, and the chemical composition of LAS and the influence of such main factors as soil grain size, temperature, salinity and pH on the adsorption of LAS are analyzed. The degradation mechanism of LAS in soil is presented and the influence of such main factors as LAS chemical composition, initial concentration, microorganism quantity, temperature and pH on the degradation efficiency are also analyzed, which provide sufficient reference and basis for the future application and pollution treatment of LAS. It is realized that the emission quantity of LAS will increase and the pollution grade will become more and more severe, so the environmental restriction factors for the degradation of LAS should be eliminated in order to reduce the adsorption on soil and further solve the pollution problems of LAS.
出处
《化工生产与技术》
CAS
2008年第3期46-48,共3页
Chemical Production and Technology
