Influence of humic substances on the transport of indium and gallium in porous media

Kouhail, Yasmine; Amiel, Nitai; Dror, Ishai; Berkowitz, Brian

doi:10.1016/j.chemosphere.2020.126099

Cited by 2 publications

(1 citation statement)

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“…Moreover, significant differences in the effects of FA on metals have been found among different environmental media. Kouhail et al (2020) evaluated the influence of FA and HA on the migration of indium (Yn) and gallium (Ga) in quartz sand through a sand column experiment; the presence of FA at a certain concentration enhanced the fluidity of Yn and Ga in a quartz sand medium; the mobility of FA to Yn and Ga increased by 18 and 34%, respectively, relative to that of DOM, but the influence of FA on the fluidity of Yn and Ga was smaller than that of HA; this phenomenon may be due to the low fat/aromatic ratio in the functional group of FA and consequent inhibited adherence of FA to the mineral surface. This result is consistent with previous research results.…”

Section: Mechanism Of Fa Controlling Metal Environmental Behaviormentioning

confidence: 99%

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

Song

Sun²,

Wang³

et al. 2023

Front. Microbiol.

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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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Section: Mechanism Of Fa Controlling Metal Environmental Behaviormentioning

confidence: 99%