| 铁钛无机交联膨润土的制备及其对COD的吸附研究 |
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| 引用本文： | 梁彦秋,张显龙,邵红,田艳芬.铁钛无机交联膨润土的制备及其对COD的吸附研究[J].当代化工,2004,33(6):347-349. |
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| 作者姓名： | 梁彦秋 张显龙 邵红 田艳芬 |
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| 作者单位： | 沈阳化工学院环境与生物工程学院,辽宁,沈阳,110142 |
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| 摘 要： | 以钠基膨润土为原料，制备了铁钛无机交联膨润土，应用于模拟废水的处理。以对COD的去除率为指标，利用正交试验研究制备铁钛无机交联膨润土的最佳实验条件及其吸附模拟废水的最佳实验条件。结果表明：铁钛无机交联膨润土对COD表现出较好的吸附性能。当悬浮液浓度为3％、铁钛摩尔比为16：1、交联剂／土(mmol／g)为15：1、反应温度为40℃、反应时间为3h为制备的最佳实验条件。当废水pH值为3．0、吸附剂用量为14g／L、吸附时间为30min时，为吸附模拟废水的最佳实验条件，此时COD的去除率可达90％以上。
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| 关 键 词： | 铁钛无机交联膨润土 制备 吸附 COD 模拟废水 |
| 文章编号： | 1671-0460(2004)12-0347-03 |
| 修稿时间： | 2004年9月2日 |
Study on Synthesis and COD Removal of Fe - Ti Cross - linked Inorganic - bentonite in Simulation Wastewater |
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| LIANG Yan-qiu,ZHANG Xian-long,SHAO hong,TIAN Yan-fen.Study on Synthesis and COD Removal of Fe - Ti Cross - linked Inorganic - bentonite in Simulation Wastewater[J].Contemporary Chemical Industry,2004,33(6):347-349. |
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| Authors: | LIANG Yan-qiu ZHANG Xian-long SHAO hong TIAN Yan-fen |
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| Abstract: | In this paper, Fe-Ti cross-linked inorganic-bentonite was synthesized and applied in treatment of simulation wastewater. The optimal experimental conditions for synthesis and adsorption COD in simulation wastewater were investigated by orthogonal experiment. The optimal preparation conditions were suspension concentration 3 %, Fe-Ti molar ratio 16:1, cross-linker/bentonite 15:1(mmol/g), reaction temperature 40 degree and reaction 3 hours. The optimal adsorption conditions were pH=3.0, the amount of adsorbent 14 g/L and stirring 30 minutes. Under the conditions, COD removal rate is 90.30 %. The result is satisfactory. |
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| Keywords: | Fe-Ti cross-linked inorganic-bentonite synthesis adsorption COD simulation wastewater |
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