Mitigation of heavy metal soil contamination: A novel strategy with mycorrhizal fungi and biotransformed olive residue
Year: 2024
Type: article
Abstract: This study investigates a novel phytoremediation approach in, employing a synergistic treatment involving arbuscular mycorrhizal fungi (AMF) and biotransformed dry olive residue (DOR) to address heavy metal (HM) contamination in soils. The research focused on soil from the Guadiamar Green Corridor area (Aznalcóllar), characterized by bar soils with residual metal pollution (Co, As, Cr, Cd, Pb, Ni, Cu, and Zn). The findings highlight significant improvement in soil physicochemical properties and enzymatic activity upon DOR application, leading to enhanced biological properties and a subsequent boost in vegetative response in plants. While mycorrhizal inoculation contributes modestly, a native species in the studied area, Rhizoglomus sp. (Azn), stands out as the most effective, exhibiting superior mycorrhization and root biomass compared to other treatments when combined with DOR. This study proposes an innovative, circular economy-driven approach to address diffuse pollution sources in the studied area studied by recommending the use of DOR and the inoculation with Rhizoglomus sp. This approach proves superior in both soil and plant systems. Additionally, employing native inoculants and agricultural by-products, the research not only contributes to the valorization of local resources but also promote economic growth while supporting environmental conservation efforts.
Language: English
Topic: Heavy metals in environment
Subfield: Pollution
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,400
OpenAlex ID: W4405593206