您好，欢迎访问重庆市农业科学院 机构知识库！

Adsorption and desorption characteristics of endosulfan in two typical agricultural soils in Southwest China

文献类型： 外文期刊

作者： Qian, Sheng 1 ; Zhu, Heng 1 ; Xiong, Bailian 1 ; Zheng, Guocan 3 ; Zhang, Jinzhong 1 ; Xu, Weihong 1 ;

作者机构： 1.Southwest Univ, Minist Educ, Key Lab Ecoenvironm Three Gorges Reservoir Reg, Coll Resources & Environm, Chongqing 400715, Peoples R China

2.Zunyi Normal Coll, Dept Resources & Environm, Zunyi 563002, Guizhou, Peoples R China

3.Chongqing Entry Exit Inspect & Quarantine Bur, Chongqing 400020, Peoples R China

4.Chongqing Key Lab Agr Resources & Environm, Chongqing 400716, Peoples R China

关键词： Endosulfan;Adsorption;Desorption;Latosol;Lateritic red soil

期刊名称：ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH （ 影响因子：4.223； 五年影响因子：4.306 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Endosulfan is an organochlorine pesticide widely used in Southwest China. In this paper, the adsorption and desorption characteristics of endosulfan in two typical agricultural soils (latosol and lateritic red soil) in this area were studied. The results showed that Langmuir isothermal equation could well describe the adsorption thermodynamic characteristics of endosulfan in latosol and lateritic red soil, and the maximum adsorption capacities of alpha-endosulfan were 0.186 and 0.209 mg/g, while those of beta-endosulfan were 0.140 and 0.148 mg/g, respectively. Endosulfan adsorption in the two soils was an exothermic physicochemical process, but dominated by physical process. The adsorption kinetic characteristics of endosulfan in the two soils could be well described by second-order kinetic equation, and the initial rate constants were 0.228 and 0.325 mg/(g min) for alpha-endosulfan, while those were 0.119 and 0.125 mg/(g min) for beta-endosulfan, respectively. The adsorbed endosulfan in the two soils was difficult to be desorbed into the liquid phase, and showed weak desorption hysteresis. These results implied that endosulfan could be firmly adsorbed by the two soils, and their adsorption and desorption abilities may be related to the contents of soil clay and organic matter.

  • 相关文献

[1]Effect of dissolved organic matter on adsorption and desorption of mercury by soils. Yang Yongkui,Liang Li,Wang Dingyong,Wang Dingyong.

[2]Microbial degradation of endosulfan in contaminated soil with the elution of surfactants. Deng, Fei,Xiong, Bailian,Zhang, Jinzhong,Xiong, Bailian,Chen, Benshou,Zheng, Guocan,Zhang, Jinzhong.

[3]Photocatalytic degradation of endosulfan in contaminated soil with the elution of surfactants. Xiong, Bailian,Zhang, Jinzhong,Xu, Weihong,Xiong, Bailian,Zhou, Anhong,Zheng, Guocan,Zhang, Jinzhong. 2015

[4]Preliminary investigation of phosphorus adsorption onto two types of iron oxide-organic matter complexes. Yan, Jinlong,Jiang, Tao,Lu, Song,Wang, Qilei,Wei, Shiqiang,Jiang, Tao,Yao, Ying.

[5]A new hydrotalcite-like absorbent FeMnMg-LDH and its adsorption capacity for Pb2+ ions in water. Zhou, Hongguang,Jiang, Zhenmao,Wei, Shiqiang,Zhou, Hongguang,Jiang, Zhenmao,Wei, Shiqiang,Zhou, Hongguang,Jiang, Zhenmao,Wei, Shiqiang. 2018

[6]Equilibrium and Kinetic Studies of Phosphate Adsorption Onto Corn Straw Char Supported Nano Ferric Oxide Composite. Zhou, Hongguang,Jiang, Zhenmao,Wei, Shiqiang. 2015

作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：重庆市农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台