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| 改性膨润土吸附去除水中氨氮的实验研究 | |
| 引用本文： | 陈岩,赵静,闫良国. 改性膨润土吸附去除水中氨氮的实验研究[J]. 环境科技, 2009, 22(4): 1-3 |
| 作者姓名： | 陈岩 赵静 闫良国 |
| 作者单位： | 1. 龙口市环境保护局,山东,龙口,265700 2. 青岛市环境保护局李沧分局,山东,青岛,266041 3. 济南大学化学化工学院,山东,济南250022 |
| 基金项目： | 山东省中青年科学家科研奖励基金项目 |
| 摘 要： | 以表面活性剂十六烷基三甲基溴化铵（CTMAB）溶液和聚合铝、聚合铁溶液为改性剂，制备了相应的改性膨润土吸附剂：CTMAB有机膨润土、铝柱撑膨润土和铁柱撑膨润土，用以吸附去除水中的氨氮。结果表明：在最佳吸附实验条件下。几种改性膨润土均能够较好地吸附水中的氨氮，改性膨润土的吸附能力大于原土，吸附量的顺序为：铝柱撑膨润土〉铁柱撑膨润：L〉CTMAB有机膨润土〉原土。改性膨润土对氨氮的吸附是一个快速的过程，可在60min达到吸附平衡，吸附等温线符合Langmuir和Freundlich方程。 |
| 关 键 词： | 膨润土 改性膨润土 吸附 氨氮 |
Study on Adsorption of Ammonia Nitrogen from Water by Modified Bentonites |
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| CHEN Yan,ZHAO Jing,YAN Liang-guo. Study on Adsorption of Ammonia Nitrogen from Water by Modified Bentonites[J]. Jiangsu Environmental Science and Technology, 2009, 22(4): 1-3 | |
| Authors: | CHEN Yan ZHAO Jing YAN Liang-guo |
| Affiliation: | CHEN Yan,ZHAO Jing,YAN Liang-guo |
| Abstract: | In this paper, three modified bentonites of surfactant cetyltrimethylammonium bromide (CTMAB), polymeric aluminum and polymeric iron solution as modifiers, CTMAB organo-bentonite, hydroxy-aluminum pillared bentonite and hydroxy-iron pillared bentonite were prepared, and its adsorption properties for the removal of ammonia nitrogen from water were evaluated in batch experiments. The results showed that the adsorption ability of ammonia nitrogen by modified bentonites was far more than that of raw bentonite. ... |
| Keywords: | Bentonite Pillared bentonite Adsorption Ammonia nitrogen |
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