>The marine biomassUlva compressaL. (ECL) was used as a low-cost biosorbent for the removal of Cr(VI) from contaminated '/> Modeling biosorption of Cr(VI) onto <italic>Ulva compressa</italic> L. from aqueous solutions
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Modeling biosorption of Cr(VI) onto Ulva compressa L. from aqueous solutions

机译：将Cr（vi）的生物吸收为<斜体> Ulva compleSa L.从水溶液中

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摘要

>The marine biomassUlva compressaL. (ECL) was used as a low-cost biosorbent for the removal of Cr(VI) from contaminated aqueous solutions. The operating variables were optimized: pH ～ 2, initial concentration of 25 mg/L, solid/liquid ratio of 6 g/L and a temperature of 50 °C, leading to an uptake elimination of 96%. A full factorial experimental design technique enabled us to obtain a mathematical model describing the Cr(VI) biosorption and to study the main effects and interactions among operational parameters. The equilibrium isotherm was analyzed by the Langmuir, Freundlich and Dubinin–Radushkevich (D-R) models; it has been found that the adsorption process follows well the Langmuir model. Kinetic studies showed that the pseudo-second order model describes suitably the experimental data. The thermodynamic parameters indicated an endothermic heat and a spontaneity of the Cr(VI) biosorption onto ECL.]]>
机译：<！[cdata [《Water Science and Technology》 |2018年第2期|共10页
  • 作者

    Asma Aid; Samira Amokrane; Djamel Nibou; Elhadj Mekatel; Mohamed Trari; Vasile Hulea;

  • 作者单位

    Laboratoire de Technologie des Matériaux USTHB B.P.32 El-Alia Algérie;

    Laboratoire de Technologie des Matériaux USTHB B.P.32 El-Alia Algérie;

    Laboratoire de Technologie des Matériaux USTHB B.P.32 El-Alia Algérie;

    Laboratoire de Technologie des Matériaux USTHB B.P.32 El-Alia Algérie;

    Laboratory of Storage and Valorizatuion of Renaewable Energies Faculty of Chemistry (USTHB) B.P. 32 El-Alia Alger Algérie;

    Institut Charles Gerhardt UMR 5253 CNRS-UM2-ENSCM-UM1 Matériaux Avancés pour la Catalyse et la Santé 8 rue de l'Ecole Normale 34 296 Cedex 5 Montpellier France;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 水资源调2查与水利规划;
  • 关键词

    biosorption kinetic; chromate; modeling; thermodynamic; Ulva compressa;

    机译：生物吸附动力学;铬酸盐;建模;热力学;ULVA Compressa;

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