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| 改性膨润土粉末对克百威的吸附 | |
| 引用本文： | 金春姬,杨平,任娟,肖波,王金俊.改性膨润土粉末对克百威的吸附[J].环境科学与技术,2011,34(9):49-53. |
| 作者姓名： | 金春姬 杨平 任娟 肖波 王金俊 |
| 作者单位： | 1. 中国海洋大学海洋环境与生态教育部重点实验室,山东青岛,266100 2. 山东轻工业设计院,山东济南,250014 3. 青岛明朗环境工程有限公司,山东青岛,266100 |
| 摘 要： | 分别用季铵盐阳离子表面活性剂十六烷基三甲基溴化铵(CTMAB)和阴离子表面活性剂十二烷基苯磺酸钠(SDBS)改性钠基膨润土,研究改性膨润土吸附水中氨基甲酸脂类农药克百威的效果、机理及主要影响因素。结果表明,改性膨润土的有机碳含量和用土量影响其对克百威的吸附去除率。表面活性剂通过插层进入膨润土间,有效扩张了膨润土的层间距,有机插层效果明显。100CTMAB-10SDBS膨润土为最佳的吸附剂类型,最佳用土量20.00 g/L,吸附平衡时间为3 h,平衡去除率为92.60%。改性膨润土对克百威的吸附符合Freundlich模型,变形公式的相关系数在98%以上。 |
| 关 键 词： | 膨润土 表面活性剂 克百威 吸附 |
Adsorption of Modified Bentonite Powder to Carbofuran in Water |
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| JIN Chun-ji,YANG Ping,REN Juan,XIAO Bo,WANG Jin-jun.Adsorption of Modified Bentonite Powder to Carbofuran in Water[J].Environmental Science and Technology,2011,34(9):49-53. | |
| Authors: | JIN Chun-ji YANG Ping REN Juan XIAO Bo WANG Jin-jun |
| Institution: | JIN Chun-ji1,YANG Ping1,REN Juan2,XIAO Bo1,WANG Jin-jun3(1.Key Laboratory of Marine Environmental Science and Ecology of Ministry of Education,Ocean University of China,Qingdao 266100,China,2.Shandong Light Industry Design Institute,Jinan 250014,3.Qingdao Minglang Environmental Engineering Co.Ltd,China) |
| Abstract: | Modified organobentonite were synthesized by placing quaternary ammonium salt cationic surfactants cetyltrimethylammonium bromide(CTMAB)and anionic surfactants sodium dodecyl benzene sulfonate(SDBS)on Na-bentonite.The adsorption effect,mechanism and influence factors for modified bentonite to adsorb pesticide carborfuran of carbamate in water were investigated.Results indicated that organic carbon content and dosage of modified bentonite affected removal rate of adsorption of modified bentonite to carbofura... |
| Keywords: | bentonite surfactant carbofuran adsorption |
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