doi:10.16597/j.cnki.issn.1002-154x.2022.02.005
废水中 Cr(Ⅲ)的吸附热力学和动力学研究进展
库尔班江·努尔麦提∗ 热娜古丽·阿不都热合曼
(喀什大学 化学与环境科学学院,新疆 喀什 844006)
Research Advances about Thermodynamics and Kinetics of Cr(Ⅲ) Adsorption in the Wastewater
Kuerbanjiang·Nuermaiti∗; Renaguli·Abudureheman;
(College of Chemistry & Environmental Science, Kashi University, Xinjiang Kashi, 844006)
摘要:
含铬废液中三价铬含量控制是含铬废液处理的重要组成部分。作为微量元素,体内含铬量不能超标吸收或体内缺失。铬在不同情形下显示不同形态化学变化。三价铬吸附热力学与动力学为从宏观和微观角度理解三价铬 在吸附剂上的吸附行为提供理论基础。 本文介绍铬价态变化、三价铬含量的传统与最新测试方式,分析近期三价铬吸附相关文献的吸附热力学与动力学成果,为进一步准确分析三价铬的吸附热力学函数和吸附参数随时间的变化提供理论依据,并指出目前的废水 Cr(Ⅲ)吸附热力学与动力学中的研究空白。
关键词：三价铬；吸附分离；热力学；动力学；
Abstract：
Control of Cr(Ⅲ) contents is the essential part of chromium treatment of wastewater, as a microelement, it can’t be ever-absorbed or be lack in human organism. Cr ( Ⅲ) exhibits different chemical change in different condition. Cr(Ⅲ) adsortion thermodynamics and kinetics provides basics to understand Cr(Ⅲ) adsorption on the adsorbent from the micro and macro perspective. Introduced Cr(Ⅲ) valence change, traditional and latest method of measuring, analyzed recent Cr(Ⅲ) adsorption related thermodynamics and kinetics in the articles to further accurate analysis of Cr ( Ⅲ) adsorption thermodynamic function and parameter changes. The blank of Cr ( Ⅲ) adsorption thermodynamics and kinetics of current research were proposed.
Keywords：Cr(Ⅲ); adsorption separation; thermodynamics; kinetics;