相关实验视频

Updated: Mar 18, 2026

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Preparation of Biomass-based Mesoporous Carbon with Higher Nitrogen-/Oxygen-chelating Adsorption for CuII Through Microwave Pre-Pyrolysis

Published on: February 12, 2019

优化铜 (Cu) 离子溶解从烧焦的 Chrysopogon zizanoides (L.) Roberty 通过面部中心的中央复合材料设计在植物修复中使用

Richelle A Ogdiman^1,2, Marie Chela B Cenia³, Augustus C Resurreccion^3,4

¹Environmental Engineering Program, College of Engineering, University of the Philippines, 1101, Diliman, Quezon City, Philippines. ogdiman.richelle@wmsu.edu.ph.

Environmental geochemistry and health

|March 17, 2026

概括

这项研究优化了使用酸浸出和凝固来从烧焦的草中提取铜. 它实现了97%的铜溶解和99.69%的水泥回收,提供了可持续的重金属管理解决方案.

科学领域:

环境科学环境科学
环境化学环境化学
材料科学材料科学材料科学

背景情况:

重金属污染,特别是铜污染,构成了全球环境威胁.
植物补救是一种可持续的去除金属的方法,但生物质处置具有挑战性.
需要有效的战略来从污染的生物质中回收金属.

研究的目的:

系统地优化从烧焦的草草生物质中回收铜 (Cu).
整合酸漏,动力建模 (收缩核心模型) 和回收的凝固.
评估开发的可持续重金属管理流程的效率.

主要方法:

酸浸出实验是使用面中心中心复合材料设计 (FCCD) 进行的.
优化的关键参数包括温度,液体/固体 (L/S) 比率,水时间和速度.
铜的回收进一步通过使用铁 (Fe) 片进行水泥化来提高.

主要成果:

在优化条件下 (70°C,19.32mL/g L/S比率,130分钟,38 rev/min) 实现了最大Cu2+离子溶解率97%.
L/S比率和温度被确定为影响漏效率的最重要的因素 (R2 = 0.89).
动力学分析表明通过界面转移和扩散进行混合控制;在pH值为1时,实现了99.69%的化回收.

结论:

该研究表明,从植物修复生物质中回收铜的高效和优化的过程.
这种综合方法为管理重金属污染场所和生物质提供了可持续的解决方案.
这些发现通过使金属资源回收成为可能,推动了循环经济领域的发展.

关键词:

生物质价值化生物质价值化酸是一种酸.铜铜铜铜铜铜泄漏泄漏是一种泄漏.响应表面的方法响应表面方法这里是Vetiver草.

更多相关视频

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Preparation of Expanded Chitin Foams and their Use in the Removal of Aqueous Copper

Published on: February 27, 2021

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Physical, Chemical and Biological Characterization of Six Biochars Produced for the Remediation of Contaminated Sites

Published on: November 28, 2014

相关概念视频

Extraction: Advanced Methods

Extraction: Advanced Methods

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...

Precipitation and Co-precipitation

Precipitation and Co-precipitation

Precipitation and coprecipitation methods can be used to separate a mixture of ions in a solution. In qualitative inorganic analysis, ions that form sparingly soluble precipitates with the same reagent are separated based on the differences in solubility products. For example, consider the separation of Cu(II) and Fe(II) ions by precipitation as insoluble sulfides. First, copper(II) sulfide is precipitated by the addition of acidic H2S, where the dissociation of H2S is suppressed. Adding H2S...