| 腐殖质存在条件下膨润土对两种有机磷农药的吸附研究 |
| |
| 引用本文： | 朱丽珺,汪学金,卜晓莉,宰德欣.腐殖质存在条件下膨润土对两种有机磷农药的吸附研究[J].环境科学与管理,2009,34(12):48-51. |
| |
| 作者姓名： | 朱丽珺 汪学金 卜晓莉 宰德欣 |
| |
| 作者单位： | 1. 南京林业大学,理学院,江苏,南京,210037
2. 南京林业大学,森林资源与环境学院,江苏,南京,210037 |
| |
| 基金项目： | 江苏省重点自然科学基金资助项目(BK2001208); 江苏省高校自然科学基金资助项目(04KJD610093)资助 |
| |
| 摘 要： | 研究了腐殖质存在条件下膨润土对两种有机磷农药（毒死蜱和辛硫磷）的吸附作用及腐殖质含量、吸附时间、膨润土用量、农药浓度、pH等因素对吸附作用的影响。结果发现：膨润土对毒死蜱和辛硫磷的吸附能力随腐殖质含量的升高而升高，分别在腐殖质含量为8％，6％时达最大，之后处于持平状态；膨润土对毒死蜱和辛硫磷的吸附分别在1．5h和2h时达到平衡，可用双速率吸附模型解释；腐殖质含量固定时膨润土用量加大对两种农药的去除率均增加，但吸附量随之下降；随着农药浓度的升高，膨润土对两种有机磷农药的吸附量加大，但去除率下降；pH升高对吸附有利。
|
| 关 键 词： | 腐殖质 膨润土 毒死蜱 辛硫磷 吸附 |
Adsorption of Bentonite on Two Organophosphorous Pesticides in Existence of Humus |
| |
| Zhu Lijun,Wang Xuejin,Bu Xiaoli,Zai Dexin.Adsorption of Bentonite on Two Organophosphorous Pesticides in Existence of Humus[J].Environmental Science and Management,2009,34(12):48-51. |
| |
| Authors: | Zhu Lijun Wang Xuejin Bu Xiaoli Zai Dexin |
| |
| Institution: | 1. College of Science, Nanjing 210037, China; 2. College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China) |
| |
| Abstract: | The adsorption of bentonite on two organophosphorous pesticides(Chlorpyrifos and Phoxim) in existence of humus was investigated,analyzing the effects of humus content,adsorption time,the amount of bentonite,pesticide concentration,and pH.The results shows that firstly the adsorption capacity of bentonite on Chlorpyrifos and Phoxim were increasing when humus content was increasing,reaching the top at the humus content 8%and 6% respectively,then drop.The adsorption achieved balance at 1.5 h of Chlorpyrifos an... |
| |
| Keywords: | humus bentonite Chlorpyrifos Phoxim adsorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
