Zhihong Tu , Yujian Liang , Shu Zhou , Xuezhen Zhang , Xiaomei Tan , Guo Yu , Xuehong Zhang , John R. Reinfelder
{"title":"Application of pyrite to water pollutant removal: A review","authors":"Zhihong Tu , Yujian Liang , Shu Zhou , Xuezhen Zhang , Xiaomei Tan , Guo Yu , Xuehong Zhang , John R. Reinfelder","doi":"10.1016/j.jwpe.2024.106375","DOIUrl":null,"url":null,"abstract":"<div><div>Pyrite (FeS<sub>2</sub>), 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 Fe<sup>2+</sup> 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 Fe<sup>2+</sup> 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.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"68 ","pages":"Article 106375"},"PeriodicalIF":6.3000,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714424016076","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
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.
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
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
