甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性

刘涉江; 李木金; 姜斌; 李鑫钢

环境工程学报

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刘涉江, 李木金, 姜斌, 李鑫钢. 甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性[J]. 环境工程学报, 2007, 1(1): 110-112.

引用本文:

刘涉江, 李木金, 姜斌, 李鑫钢. 甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性[J]. 环境工程学报, 2007, 1(1): 110-112.

Liu Shejiang, Li Mujin, Jiang Bin, Li Xingang. Absorption characteristics of methyl tert－butyl ether (MTBE) in different clayey soils[J]. Chinese Journal of Environmental Engineering, 2007, 1(1): 110-112.

Citation:

Liu Shejiang, Li Mujin, Jiang Bin, Li Xingang. Absorption characteristics of methyl tert－butyl ether (MTBE) in different clayey soils[J]. Chinese Journal of Environmental Engineering, 2007, 1(1): 110-112.

甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性

1.
天津大学化工学院，天津300072
基金项目:
国家自然科学基金资助项目(20276048)
中图分类号: X53

Absorption characteristics of methyl tert－butyl ether (MTBE) in different clayey soils

1.
School of Chemical Engineering and Technology，Tianjin University，Tianjin 300072
Fund Project:

摘要: 土壤对有机物的吸附是污染土壤及地下水原位修复技术中的重要参数。通过静态间歇吸附实验研究了甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性。结果表明，MTBE在粘性土壤中的吸附行为均可用线性方程很好描述，粘粒是土壤对MTBE吸附的主要影响因素，吸附常数与土壤粘粒含量呈y=4.382×10-3x-0.817×10-3直线关系。对不同温度下的吸附数据分析发现，粘性土壤对MTBE的平衡吸附量随温度的升高而降低，由吸附热力学推导可得等量吸附焓变ΔH与平衡吸附量无关，且ΔH＜0，表明该吸附为放热过程。
- 甲基叔丁基醚 /
- 吸附 /
- 粘性土壤 /
- 吸附热力学
Abstract: The batch experiment was performed to investigate the adsorption characteristics of methyl tertbutyl ether (MTBE) in different clayey soils. The results indicated that linear equation can well describe the soil adsorption behavior of MTBE, and the adsorption capability increases as the clay content increases. The relationship between the adsorption constant and clay content in the test soil is the following:y=4.482×10-3x-0.864×10-3.Furthermore,the study on the experimental data showed that temperature has obvious effects on the adsorption amount of MTBE. Under the condition of linear adsorption, the enthalpy of adsorption (ΔH) obtained from thermodynamic analysis is independent of the adsorption amount, and ΔH＜0 indicates that the adsorption is an exothermic process.
- methyl tert-butyl ether /
- adsorption /
- clayey soil /
- adsorption thermodynamics

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甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性

1. 天津大学化工学院，天津300072

收稿日期: 2006-10-26

基金项目:

国家自然科学基金资助项目(20276048)

关键词:

摘要: 土壤对有机物的吸附是污染土壤及地下水原位修复技术中的重要参数。通过静态间歇吸附实验研究了甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性。结果表明，MTBE在粘性土壤中的吸附行为均可用线性方程很好描述，粘粒是土壤对MTBE吸附的主要影响因素，吸附常数与土壤粘粒含量呈y=4.382×10-3x-0.817×10-3直线关系。对不同温度下的吸附数据分析发现，粘性土壤对MTBE的平衡吸附量随温度的升高而降低，由吸附热力学推导可得等量吸附焓变ΔH与平衡吸附量无关，且ΔH＜0，表明该吸附为放热过程。

English Abstract

Absorption characteristics of methyl tert－butyl ether (MTBE) in different clayey soils

1. School of Chemical Engineering and Technology，Tianjin University，Tianjin 300072

Received Date: 2006-10-26

Fund Project:

Keywords:

Abstract: The batch experiment was performed to investigate the adsorption characteristics of methyl tertbutyl ether (MTBE) in different clayey soils. The results indicated that linear equation can well describe the soil adsorption behavior of MTBE, and the adsorption capability increases as the clay content increases. The relationship between the adsorption constant and clay content in the test soil is the following:y=4.482×10-3x-0.864×10-3.Furthermore,the study on the experimental data showed that temperature has obvious effects on the adsorption amount of MTBE. Under the condition of linear adsorption, the enthalpy of adsorption (ΔH) obtained from thermodynamic analysis is independent of the adsorption amount, and ΔH＜0 indicates that the adsorption is an exothermic process.

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甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性

Absorption characteristics of methyl tert－butyl ether (MTBE) in different clayey soils

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甲基叔丁基醚（MTBE）在不同粘性土壤中的吸附特性

English Abstract

Absorption characteristics of methyl tert－butyl ether (MTBE) in different clayey soils

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