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Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect

Fulvic acid (FA) has been shown to play a decisive role in controlling the environmental geochemical behavior of metals. As a green and natural microbial metabolite, FA is widely used in environmental remediation because of its good adsorption complexation and redox ability. This paper introduces th...

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Autores principales: Song, Chuxuan, Sun, Shiquan, Wang, Jinting, Gao, Yang, Yu, Guanlong, Li, Yifu, Liu, Zhengqian, Zhang, Wei, Zhou, Lean
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9868176/
https://www.ncbi.nlm.nih.gov/pubmed/36699598
http://dx.doi.org/10.3389/fmicb.2022.1084097
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author Song, Chuxuan
Sun, Shiquan
Wang, Jinting
Gao, Yang
Yu, Guanlong
Li, Yifu
Liu, Zhengqian
Zhang, Wei
Zhou, Lean
author_facet Song, Chuxuan
Sun, Shiquan
Wang, Jinting
Gao, Yang
Yu, Guanlong
Li, Yifu
Liu, Zhengqian
Zhang, Wei
Zhou, Lean
author_sort Song, Chuxuan
collection PubMed
description Fulvic acid (FA) has been shown to play a decisive role in controlling the environmental geochemical behavior of metals. As a green and natural microbial metabolite, FA is widely used in environmental remediation because of its good adsorption complexation and redox ability. This paper introduces the reaction mechanism and properties of FA with metals, and reviews the progress of research on the remediation of metal pollutant by FA through physicochemical remediation and bioremediation. FA can control the biotoxicity and migration ability of some metals, such as Pb, Cr, Hg, Cd, and As, through adsorption complexation and redox reactions. The concentration, molecular weight, and source are the main factors that determine the remediation ability of FA. In addition, the ambient pH, temperature, metal ion concentrations, and competing components in sediment environments have significant effects on the extent and rate of a reaction between metals and FA during the remediation process. Finally, we summarize the challenges that this promising environmental remediation tool may face. The research directions of FA in the field of metals ecological remediation are also prospected. This review can provide new ideas and directions for the research of remediation of metals contaminants in sediments.
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spelling pubmed-98681762023-01-24 Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect Song, Chuxuan Sun, Shiquan Wang, Jinting Gao, Yang Yu, Guanlong Li, Yifu Liu, Zhengqian Zhang, Wei Zhou, Lean Front Microbiol Microbiology Fulvic acid (FA) has been shown to play a decisive role in controlling the environmental geochemical behavior of metals. As a green and natural microbial metabolite, FA is widely used in environmental remediation because of its good adsorption complexation and redox ability. This paper introduces the reaction mechanism and properties of FA with metals, and reviews the progress of research on the remediation of metal pollutant by FA through physicochemical remediation and bioremediation. FA can control the biotoxicity and migration ability of some metals, such as Pb, Cr, Hg, Cd, and As, through adsorption complexation and redox reactions. The concentration, molecular weight, and source are the main factors that determine the remediation ability of FA. In addition, the ambient pH, temperature, metal ion concentrations, and competing components in sediment environments have significant effects on the extent and rate of a reaction between metals and FA during the remediation process. Finally, we summarize the challenges that this promising environmental remediation tool may face. The research directions of FA in the field of metals ecological remediation are also prospected. This review can provide new ideas and directions for the research of remediation of metals contaminants in sediments. Frontiers Media S.A. 2023-01-09 /pmc/articles/PMC9868176/ /pubmed/36699598 http://dx.doi.org/10.3389/fmicb.2022.1084097 Text en Copyright © 2023 Song, Sun, Wang, Gao, Yu, Li, Liu, Zhang and Zhou. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Song, Chuxuan
Sun, Shiquan
Wang, Jinting
Gao, Yang
Yu, Guanlong
Li, Yifu
Liu, Zhengqian
Zhang, Wei
Zhou, Lean
Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect
title Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect
title_full Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect
title_fullStr Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect
title_full_unstemmed Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect
title_short Applying fulvic acid for sediment metals remediation: Mechanism, factors, and prospect
title_sort applying fulvic acid for sediment metals remediation: mechanism, factors, and prospect
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9868176/
https://www.ncbi.nlm.nih.gov/pubmed/36699598
http://dx.doi.org/10.3389/fmicb.2022.1084097
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