Application of pyrite to water pollutant removal: A review

IF 6.3 2区工程技术 Q1 ENGINEERING, CHEMICAL

Journal of water process engineering Pub Date : 2024-10-24 DOI:10.1016/j.jwpe.2024.106375

Zhihong Tu , Yujian Liang , Shu Zhou , Xuezhen Zhang , Xiaomei Tan , Guo Yu , Xuehong Zhang , John R. Reinfelder

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引用次数: 0

Abstract

Pyrite (FeS₂), a prevalent metal sulfide mineral on Earth, has garnered substantial attention for its resource utilization amidst environmental concerns stemming from its conventional disposal as low-value tailings and the associated acid mine drainage (AMD) issues. Leveraging its exceptional adsorption capacity, formidable reducing strength, and heightened surface catalytic activity, pyrite has emerged as a versatile material in water pollution control and remediation. This paper presents a comprehensive review of pyrite's utilization in water pollutant treatment, elucidating the unique characteristics that underpin its effectiveness. Specifically, the release of Fe²⁺ ions and sulfide species, functioning as electron-rich donors, imparts pyrite with robust reducing capabilities, rendering it an ideal candidate as a reducing agent. Furthermore, the positively charged surface of pyrite, coupled with the formation of complexes during redox reactions, synergistically enhances its capacity to adsorb and sequester pollutants, thereby acting as a potent adsorbent. Notably, pyrite's self-regulating pH mechanism and its sustained, controlled release of Fe²⁺ ions confer distinct advantages in advanced oxidation processes, broadening its application horizon. This review meticulously summarizes the research advancements in harnessing pyrite's adsorption, reduction, and catalytic properties for the removal of heavy metals, inorganic contaminants, and organic pollutants from aqueous environments. It critically examines the underlying mechanisms that govern pyrite's pollutant removal capabilities and appraises the environmental factors that modulate its removal efficiency. By offering a holistic perspective, this comprehensive overview not only deepens our understanding of pyrite's role in water remediation but also serves as a valuable resource for researchers seeking to explore and optimize the application of this multifaceted mineral in addressing water pollution challenges.

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黄铁矿在去除水污染物中的应用：综述

黄铁矿（FeS2）是地球上普遍存在的一种金属硫化物矿物，其资源化利用引起了人们的广泛关注，而黄铁矿作为低价值尾矿的传统处理方式以及与之相关的酸性矿井排水（AMD）问题则引起了人们对环境的担忧。黄铁矿具有卓越的吸附能力、强大的还原强度和更高的表面催化活性，因此已成为水污染控制和修复领域的一种多功能材料。本文全面回顾了黄铁矿在水污染物处理中的应用，阐明了黄铁矿的独特性能。具体来说，黄铁矿释放的 Fe2+ 离子和硫化物物种可作为富电子供体，赋予黄铁矿强大的还原能力，使其成为理想的还原剂。此外，黄铁矿表面带正电荷，再加上氧化还原反应中形成的络合物，协同增强了其吸附和封存污染物的能力，从而成为一种有效的吸附剂。值得注意的是，黄铁矿的 pH 值自我调节机制及其对 Fe2+ 离子的持续、可控释放使其在高级氧化过程中具有独特的优势，从而拓宽了其应用范围。本综述细致总结了利用黄铁矿的吸附、还原和催化特性去除水环境中的重金属、无机污染物和有机污染物的研究进展。该书认真研究了制约黄铁矿去除污染物能力的内在机制，并评估了影响其去除效率的环境因素。通过提供一个全面的视角，这本全面的综述不仅加深了我们对黄铁矿在水修复中作用的理解，还为研究人员探索和优化这种多面矿物在应对水污染挑战中的应用提供了宝贵的资源。

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

Journal of water process engineering Biochemistry, Genetics and Molecular Biology-Biotechnology

CiteScore

10.70

自引率

8.60%

发文量

846

审稿时长

24 days

期刊介绍： The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies