Recovery of valuable elements from solid waste with the aid of external electric field: A review

IF 7.4 2区工程技术 Q1 ENGINEERING, CHEMICAL Journal of Environmental Chemical Engineering Pub Date : 2023-10-11 DOI:10.1016/j.jece.2023.111237

Yusufujiang Mubula, Mingming Yu, Delong Yang, Bo Lin, Yuting Guo, Tingsheng Qiu

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Abstract

Solid waste containing valuable elements has the potential to be a valuable secondary resource. However, the common methods (hydrometallurgy and pyrometallurgy) used to recover these elements from solid waste consume large amounts of energy and pollute the environment. Therefore, it is crucial to explore a low energy-consuming, efficient, and environmentally friendly method for recovering these valuable elements. One promising approach is to utilize an applied electric field as a reaction driver to enhance conventional chemical leaching. By using electrons as a green leaching agent or leaching medium instead of chemical agents, the recovery of valuable elements can be significantly improved while reducing the consumption of chemical reagents and environmental pollution. This paper provides a detailed and categorized discussion on the application of different forms of electrochemical methods for the effective recovery of valuable elements from various forms of solid waste.

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外加电场从固体废物中回收有价元素的研究进展

含有有价值元素的固体废物有可能成为有价值的二次资源。然而，从固体废物中回收这些元素的常用方法（湿法冶金和火法冶金）消耗大量能源并污染环境。因此，探索一种低能耗、高效、环保的方法来回收这些有价值的元素至关重要。一种有前景的方法是利用外加电场作为反应驱动器来增强传统的化学浸出。通过使用电子作为绿色浸出剂或浸出介质代替化学试剂，可以显著提高有价元素的回收率，同时减少化学试剂的消耗和环境污染。本文对不同形式的电化学方法在从各种形式的固体废物中有效回收有价值元素方面的应用进行了详细和分类的讨论。

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来源期刊

Journal of Environmental Chemical Engineering Environmental Science-Pollution

CiteScore

11.40

自引率

6.50%

发文量

2017

审稿时长

27 days

期刊介绍： The Journal of Environmental Chemical Engineering (JECE) serves as a platform for the dissemination of original and innovative research focusing on the advancement of environmentally-friendly, sustainable technologies. JECE emphasizes the transition towards a carbon-neutral circular economy and a self-sufficient bio-based economy. Topics covered include soil, water, wastewater, and air decontamination; pollution monitoring, prevention, and control; advanced analytics, sensors, impact and risk assessment methodologies in environmental chemical engineering; resource recovery (water, nutrients, materials, energy); industrial ecology; valorization of waste streams; waste management (including e-waste); climate-water-energy-food nexus; novel materials for environmental, chemical, and energy applications; sustainability and environmental safety; water digitalization, water data science, and machine learning; process integration and intensification; recent developments in green chemistry for synthesis, catalysis, and energy; and original research on contaminants of emerging concern, persistent chemicals, and priority substances, including microplastics, nanoplastics, nanomaterials, micropollutants, antimicrobial resistance genes, and emerging pathogens (viruses, bacteria, parasites) of environmental significance.