| 酸改性蒙脱石对煤气废水预处理的试验研究 |
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| 引用本文： | 凌琪,黄明.酸改性蒙脱石对煤气废水预处理的试验研究[J].矿物学报,2005,25(4):409-413. |
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| 作者姓名： | 凌琪 黄明 |
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| 作者单位： | 安徽建筑工业学院,环境工程系,安徽,合肥,230022 |
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| 基金项目： | 安徽省教育厅自然科学研究项目（批准号：2002Kj081） |
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| 摘 要： | 根据蒙脱石层间域的活性对其进行酸改性。对酸改性蒙脱石去除煤气废水中COD和色度的适宜条件、脱色机理进行了讨论。研究结果表明：天然蒙脱石经酸改性处理后，大幅度提高了对煤气废水中COD和色度的去除能力。在酸改性蒙脱石投加量为20g/L和pH6．5～7．5，处理时间30～40min，室温条件，静置时间7-8h，煤气废水COD和色度的去除率分别为69％～70％和76％。蒙脱石粘土可以为煤气废水预处理提供廉价高效的吸附剂。
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| 关 键 词： | 蒙脱石粘土 酸化改性 煤气废水预处理 适宜条件 |
| 文章编号： | 1000-4734（2005）04-0409-05 |
| 收稿时间： | 2005-04-08 |
| 修稿时间： | 2005年4月8日 |
EXPERIMENTAL STUDY ON PRE-TREATMENT OF COAL GAS WASTEWATER BY ACID-MODIFIED MONTMORILLONITE |
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| LING Qi,HUANG Ming.EXPERIMENTAL STUDY ON PRE-TREATMENT OF COAL GAS WASTEWATER BY ACID-MODIFIED MONTMORILLONITE[J].Acta Mineralogica Sinica,2005,25(4):409-413. |
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| Authors: | LING Qi HUANG Ming |
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| Institution: | Environment Engineering Dept., Anhui Institute of Architecture, Heifei 230022, China |
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| Abstract: | Based on the activity of its interlayer domain, montmorillonite was acid-modified . The appropriate conditions and the mechanism of decoloattion to remove COD and colour of acid-modified montmorillonite are discussed in this paper. It is shown that the acid-modified montmorillonite used under the conditions of 20 g/L, pH = 6.5 - 7.5, treatment time = 30 -40 min, room temperature, time for depositing = 7 - 8 h is highly capable to remove COD and colour by 69% -70% and76% from coal gas wastewater. The research provides a kind of cheap and highly effective absorbent for the pretreatment of coal gas wastewater and valuable experimental data for modifying montmorillonite and its application in the pretreatment of coal gas wastewater. |
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| Keywords: | montmorillonite clay acid-modified pre-treatment of coal gas wastewater appropriate condition |
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