Insights into microbial detoxification mechanisms in the arsenic cycle by ferrous material at a site contaminated with arsenic
This study reveals the microbial detoxification mechanism of As in unsaturated and saturated zones at an abandoned steel site using zero-valent iron (ZVI) and ferrous sulfate (FeSO4). These findings elucidate the changes in As biotransformation mechanisms before and after remediation of industrial contaminated sites and offer novel insights for the development of As-resistant strains and the application of bioremediation technology.