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Factors affecting phenol adsorption on clay-solidified grouting curtain
  • ISSN号:1005-9784
  • 期刊名称:中南工业大学学报(英文版)
  • 时间:0
  • 页码:854-858
  • 语言:中文
  • 分类:X511[环境科学与工程—环境工程] TU473.2[建筑科学—结构工程;建筑科学—土工工程]
  • 作者机构:[1]State Key Laboratory of Geomechanics and Geotechnical Engineering,Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China, [2]School of Civil Engineering and Architecture, Changsha University of Science and Technology, Changsha 410076, China, [3]Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tong~i University, Shanghai 200092, China, [4]School of Geosciences and Environmental Engineering, Central South University, Changsha 410083, China
  • 相关基金:Project(40802064) supported by the National Natural Science Foundation of China; Project(Z110805) supported by the Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences; Project(200925) supported by the Progress and Innovation Fund for the Transportation Science and Technology of Hunan Province, China
  • 相关项目:考虑可溶性污染物吸附影响的CCL非饱和渗透特性及其本构模型
中文摘要:

批实验被进行在团结泥土的 grouting 窗帘(CSGC ) 和接触时间, pH 和吸附物的效果上学习酚的吸附吸附上的集中被调查。在使用的试验性的条件下面, 2 d 是足够的决定酚吸附的平衡到 CSGC 上。CSGC 从 100 mg/L 的起始的集中吸附的酚的数量被发现是 8.4 mg/g。吸附过程包括粒子散开和液体电影散开,并且后者是吸附过程的支配的步。CSGC 的吸附能力与 pH 减少了,但是它与 CSGC 集中非线性地增加了。为 CSGC 的优化集中被发现是为 100 mg/L 酚的吸附的 20 g/L。

英文摘要:

Batch experiments were conducted to study the adsorption of phenol on clay-solidified grouting curtain (CSGC) and the effects of contact time, pH and adsorbent concentration on the adsorption were investigated. Under the experimental conditions used, 2 d was adequate to determine the equilibrium of phenol adsorption onto CSGC. The amount of phenol adsorbed by CSGC from an initial concentration of 100 mg/L was found to be 8.4 mg/g. The adsorption process includes particle diffusion and liquid film diffusion, and the latter is the predominating step of the adsorption process. The adsorption ability of CSGC decreased with pH but it increased non-linearly with the CSGC concentration. The optimized concentration for CSGC was found to be 20 g/L for the adsorption of 100 mg/L phenol.

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