BATCH ADSORPTION OF TRACE CHLOROFORM ONTOACTIVATED CARBON——PORE DIFFUSION MODEL AND SURFACEDIFFUSION MODEL

修国华; 于千; 金革; 若尾法昭

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BATCH ADSORPTION OF TRACE CHLOROFORM ONTOACTIVATED CARBON——PORE DIFFUSION MODEL AND SURFACEDIFFUSION MODEL

更新时间：2025-12-16

- BATCH ADSORPTION OF TRACE CHLOROFORM ONTOACTIVATED CARBON——PORE DIFFUSION MODEL AND SURFACEDIFFUSION MODEL
- CIESC Journal Issue 4, (1994)
- 作者机构：
  
  沈阳化工学院化工系!沈阳110021,沈阳化工学院化工系!沈阳110021,沈阳化工学院化工系!沈阳110021,横滨国立大学化工系!日本横滨
- 作者简介：
- 基金信息：
- DOI：
  CLC： 647.3
- Online First：25 August 1994，
  
  Published：25 August 1994
- 稿件说明：
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修国华, 于千, 金革, et al. BATCH ADSORPTION OF TRACE CHLOROFORM ONTOACTIVATED CARBON——PORE DIFFUSION MODEL AND SURFACEDIFFUSION MODEL[J]. CIESC Journal, 1994, (4).
DOI：

修国华, 于千, 金革, et al. BATCH ADSORPTION OF TRACE CHLOROFORM ONTOACTIVATED CARBON——PORE DIFFUSION MODEL AND SURFACEDIFFUSION MODEL[J]. CIESC Journal, 1994, (4). DOI：

摘要

近10多年来，各国对饮水氯化处理中的副作用研究甚多．现已发现氯化饮水中含有不同性质的有机物约300种“’，其中三卤甲烷含量突出，而活性炭吸附是脱除其中不同性质有机物的有效方法’‘－‘’．一般情况下，溶质在吸附剂内的扩散过程是整个吸附过程的控制步骤．但目前文献仅限干研究活性炭吸附三卤甲烷的能力，很少涉及与吸附速率有关的有效扩散系数．

Abstract

Batch adsorption experiments were carried out at 25℃ using activated carbon to adsorb chloroform from water. This system was found to obey the Langmuir isotherm numerically computed bulk concentration time change for the surface diffusion model and that by the pore diffusion model were both in reasonable agreement with the measured data. The effective pore diffusivity was found to be almost independent of the initial chloroform concentration

while the effective surface diffusivity increased with the increase in the initial concentration

Both the resistance of particle - fluid mass transfer and intraparticle mass transfer should be considered for adsorption in liquid.

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