From Grave to Cradle: Treatment, Resource Recycling, and Valorization of Phosphogypsum Wastes

IF 8.9 2区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Environmental Science & Technology Letters Environ. Pub Date : 2024-08-12 DOI:10.1021/acs.estlett.4c0053010.1021/acs.estlett.4c00530

Xiang-Yang Lou, Jiaxin Liang, Shan Liu, Jingfu Wang* and Hong Chen*,

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引用次数: 0

Abstract

Phosphogypsum (PG) wastes, including solid-state PG and liquid-state PG leachate, are industrial byproducts generated during the production of phosphoric acid. It is of great concern due to the large-scale product accumulation and environmental and geological hazards. Harmless treatment and green chemical resource utilization techniques emerge to be the critical solutions for solving the PG waste problem. This review aims to comprehensively summarize the recent advances in harmless treatment, resource recovery, and valorization of PG wastes. The technique advancements regarding the harmless treatment, decontamination, and valorization of solid-state PG waste with different physical, chemical, thermal, and biological approaches are summarized. Additionally, the comprehensive physical chemistry mechanisms underneath the treatment and valorization strategies for PG leachate have also been discussed. For future work, the challenges and perspectives for resource utilization of solid-state PG and leachate are highlighted. With the systematic information on these aspects, we expect this review will serve as a guideline for the young generations working on PG waste treatment and resource recovery.

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从坟墓到摇篮：磷石膏废物的处理、资源再循环和价值评估

磷石膏（PG）废物，包括固态磷石膏和液态磷石膏浸出液，是磷酸生产过程中产生的工业副产品。由于产品的大规模堆积和对环境和地质的危害，它备受关注。无害化处理和绿色化学资源利用技术成为解决 PG 废物问题的关键方案。本综述旨在全面总结近年来在 PG 废物无害化处理、资源回收和价值化方面取得的进展。综述了采用不同的物理、化学、热和生物方法对固态 PG 废物进行无害化处理、净化和增值的技术进展。此外，还讨论了 PG 渗滤液处理和价值化策略下的综合物理化学机制。对于未来的工作，还强调了固态 PG 和渗滤液资源化利用的挑战和前景。有了这些方面的系统信息，我们期望这篇综述能为从事 PG 废物处理和资源回收的年轻一代提供指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Environmental Science & Technology Letters Environ. ENGINEERING, ENVIRONMENTALENVIRONMENTAL SC-ENVIRONMENTAL SCIENCES

CiteScore

17.90

自引率

3.70%

发文量

163

期刊介绍： Environmental Science & Technology Letters serves as an international forum for brief communications on experimental or theoretical results of exceptional timeliness in all aspects of environmental science, both pure and applied. Published as soon as accepted, these communications are summarized in monthly issues. Additionally, the journal features short reviews on emerging topics in environmental science and technology.