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Abstract <p>The dynamics of phenol absorption from aqueous solution on AG-3 activated carbon is studied. Breakthrough curves—showing the time dependence of the relative concentration—are determined experimentally for different thicknesses of the immobile carbon layer and flow rates of the phenolic water. The mathematical model proposed to describe these curves is an equation with a hyperbolic tangent. The sorptional equilibrium constant for phenol at activated carbon is found (<i>K</i> = 3.472 × 10<sup>–4</sup> m<sup>–1</sup>). In modeling the dynamic adsorption of phenol, the range of the permissible hypothetical flow rate in the sorption system is determined: 2.9–10.8 m/h. The influence of this factor on the process is demonstrated.</p>

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Dynamics of Phenol Absorption by Activated Carbon

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • A. V. Suslikov,
  • B. S. Zhirnov,
  • F. R. Murtazin,
  • F. R. Oparina,
  • P. V. Kugatov,
  • D. A. Burchak,
  • L. A. Ishkinina

摘要

Abstract

The dynamics of phenol absorption from aqueous solution on AG-3 activated carbon is studied. Breakthrough curves—showing the time dependence of the relative concentration—are determined experimentally for different thicknesses of the immobile carbon layer and flow rates of the phenolic water. The mathematical model proposed to describe these curves is an equation with a hyperbolic tangent. The sorptional equilibrium constant for phenol at activated carbon is found (K = 3.472 × 10–4 m–1). In modeling the dynamic adsorption of phenol, the range of the permissible hypothetical flow rate in the sorption system is determined: 2.9–10.8 m/h. The influence of this factor on the process is demonstrated.