使用Al(OH) 3@AC成功地从水环境中去除化物:柱体研究和突破曲线建模
S Bakhta1,2, Z Sadaoui1, N Bouazizi2
1Laboratory of Reaction Engineering, Faculty of Mechanical and Processes Engineering, University of Sciences and Technology Houari-Boumediene BP No. 32, El Alia, Bab Ezzouar 16111 Algiers Algeria.
RSC advances
|January 4, 2024
概括
这项研究表明,在柱吸附中使用氧化@活性炭 (Al(OH) 3@AC) 来有效地从水中去除化物. 克拉克模型准确地描述了这个过程,达到41.84毫克-1的高吸附能力.
科学领域:
- 环境科学 环境科学
- 水处理技术水处理技术
- 吸附科学 吸附科学
背景情况:
- 饮用水中的化物污染对健康构成重大风险.
- 传统的水处理方法去除化物可能是低效或昂贵的.
- 开发有效和经济的吸附材料对于净水至关重要.
研究的目的:
- 为了研究Al(OH)3@AC复合物的有效性,作为颗粒状活性碳,通过柱吸附从水中去除化物.
- 分析操作参数的影响,如床高度,初始化物度和化物吸附的流量.
- 在描述实验数据时,评估不同列吸附模型的性能.
主要方法:
- 使用Al(OH)3@AC.进行了列吸附实验.
- 实验因素包括床的高度,初始化物度和流量.
- 突破曲线被生成和分析.
- 使用亚当斯-博哈特,托马斯,尤恩-尼尔森和克拉克模型来调整吸附数据.
主要成果:
- 增加的流速导致突破和和时间的减少.
- 克拉克模型提供了最适合实验突破曲线的模型.
- 在最佳条件下达到的最高吸附能力为41.84mgg-1 (3厘米床高度,10毫克L-1初始化物度,7.5毫升分钟-1流量).
结论:
- Al(OH) 3@AC是一种高效的吸附剂,用于在柱子系统中去除化物.
- 克拉克模型准确地预测了用于化物去除的Al(OH)3@AC的吸附行为.
- 优化的柱子参数可以最大限度地提高化物吸附能力,提供可行的水处理解决方案.
相关概念视频
04:01Factors Affecting Solubility
33.5K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
33.5K
00:56Extraction: Advanced Methods
447
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
447