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作者:

Zhang, Zhihong (Zhang, Zhihong.) (学者:张志红) | Qin, Wenlong (Qin, Wenlong.) | Zhang, Jiapei (Zhang, Jiapei.) | Xu, Zhaogang (Xu, Zhaogang.) | Guo, Fei (Guo, Fei.)

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摘要:

A non-equilibrium model for adsorption process of single ionic species onto solid adsorbent has been proposed within the framework of irreversible thermodynamics. Based on Ziegler's principle of maximal rate of dissipation and combining mass balance equation of ionic species, a theoretical formulation of general description for non-equilibrium adsorption was obtained. Fatherly, the dispersion-type energy functions included two Helmholtz free energy and one dissipation rate density were constructed by complementary error function, which introduced into the general form of non-equilibrium model to achieve the specific form. The predicted results of the presented model were compared with the tested kinetics of adsorption processes of Pb2+ and Cd2+ onto Beidellite, which provided a better agreement with the experimental data.

关键词:

Non-equilibrium adsorption Thermodynamics Free energy Dissipation rate

作者机构:

  • [ 1 ] [Zhang, Zhihong]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Qin, Wenlong]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Zhang, Jiapei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Xu, Zhaogang]China Elect Engn Design Inst Co Ltd, Beijing 100142, Peoples R China
  • [ 5 ] [Guo, Fei]Beijing Municipal Construct Co Ltd, Beijing 100048, Peoples R China

通讯作者信息:

  • 张志红

    [Zhang, Zhihong]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China

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来源 :

PROCEEDINGS OF THE 8TH INTERNATIONAL CONGRESS ON ENVIRONMENTAL GEOTECHNICS, VOL 1: TOWARDS A SUSTAINABLE GEOENVIRONMENT

ISSN: 1863-5520

年份: 2019

页码: 521-527

语种: 英文

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 1

ESI高被引论文在榜: 0 展开所有

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