| CPAM二次改性有机膨润土的脱色性能研究 |
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| 引用本文： | 任海贝,李明玉.CPAM二次改性有机膨润土的脱色性能研究[J].环境科学与技术,2006,29(3):13-14,25. |
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| 作者姓名： | 任海贝 李明玉 |
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| 作者单位： | 暨南大学环境工程系,广州,510630 |
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| 摘 要： | 分别用十六烷基三甲基溴化铵(CTMAB)和阳离子聚丙烯酰胺(CPAM)改性钠基膨润土,并用CPAM二次改性CTMAB插层膨润土,分析了三种改性后的膨润土的结构并研究了对模拟印染废水的吸附脱色性能。结果表明,经过CPAM二次改性过的CTMAB插层膨润土的层间距d001大于CTMAB改性膨润土、CPAM改性膨润土和钠基膨润土,且二次改性膨润土的脱色效果最佳。用50mg二次改性膨润土处理200mL浓度为30mg/L的活性艳红模拟印染废水时脱色率就可达90%以上,且沉降速度快,表现出良好的吸附、脱色、絮凝沉降的协同效应。
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| 关 键 词： | 阳离子聚丙烯酰胺 十六烷基三甲基溴化铵 改性膨润土 脱色 |
| 文章编号： | 1003-6504（2006）01-0013-03 |
| 收稿时间： | 2005-03-16 |
| 修稿时间： | 2005-03-162005-04-26 |
Decoloring Dyeing Wastewater by Organo-bentonites Re-modified with CPAM |
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| REN Hai-bei,LI Ming-yu.Decoloring Dyeing Wastewater by Organo-bentonites Re-modified with CPAM[J].Environmental Science and Technology,2006,29(3):13-14,25. |
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| Authors: | REN Hai-bei LI Ming-yu |
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| Abstract: | Cationic polyacryamide(CPAM)was used to re-modified CTMAB-bentonite which was the product of Na-bentonite modified with cetyl-trimethylammonium bromide(CTMAB).The study showed that CTMAB-bentonite had larger layer spacing and better capability of decolorization in dyeing wastewater treatment,characterized by distinct synergistic effect of adsorption,flocculation and decolorization. |
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| Keywords: | cationic polyacryamide(CPAM) cetyl-trimethylammonium bromide(CTMAB) organo-bentonite decolorization |
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