期刊论文

中文

农业环境科学学报

1672-2043

2007

26

4

1396-1401

10.3321/j.issn:1672-2043.2007.04.039

湖南科技计划项目（04SK3019）；

本校为第一机构

采用振荡平衡法研究了非离子表面活性剂Brij35、Brij30、Tween-80、TritonX-100在土壤/沉积物上的吸附行为及Brij35、Brij30在不同处理土壤上的吸附特征.结果表明,Brij35、Tween-80、TritonX-100在土壤/沉积物上的吸附等温线呈Langmuir型,而Brij30呈S型,其达到吸附饱和时的平衡浓度分别为110、55、200、25 mg·L-1;Brij35、TritonX-100和ween-80主要通过疏水基在土壤/沉积物有机质中的分配作用而吸附,而Brij30的吸附是亲水基团与土壤/沉积物表面的相互作用以及疏水基团之间相互作用共同作用的结果.

By using batch sorption method, sorption behaviors of nonionic surfactant Brij35, Brij30, Tween-80 and TritonX-100 in soil/sedi- ments were investigated and sorption characteristics of Brij35, Brij30 in soil treated with different chemicals were compared. The results showed that the Langmuir model was appropriate for describing the sorption isotherms of Brij35, Tween-80 and TritonX-100 in soil/sediments, but sorption isotherms of Brij30 were fitted to the S model, and at the same time the sorption isotherms exhibited a saturate sorption in soil...