Synergistic Mechanism of Arsenic Detoxification by Goethite and Arsenic-Oxidizing Bacteria (SY8). (IMAGE)

Nanjing Institute of Environmental Sciences, MEE

Synergistic Mechanism of Arsenic Detoxification by Goethite and Arsenic-Oxidizing Bacteria (SY8).

Caption

Synergistic Mechanism of Arsenic Detoxification by Goethite and Arsenic-Oxidizing Bacteria (SY8). This figure illustrates the synergistic mechanism by which goethite (Goe) and arsenic-oxidizing bacteria (SY8) enhance arsenic detoxification. The bacteria oxidize toxic arsenite [As(III)] to less harmful arsenate [As(V)], a process amplified by goethite's catalytic effects. The interaction between the bacteria and goethite promotes the generation of hydroxyl radicals (·OH), activating the oxidation process, and enhancing arsenic adsorption and immobilization, which significantly reduces arsenic mobility in contaminated environments. The data on the left shows the increased aqueous As(V) levels at different time points for SY8 alone and the Goe-SY8 composite.

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Eco-Environment & Health

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