Reduction of the Mercury Concentration Present in Forest Soil using Iron Nanoparticles

Yaure L.A.; Flores J.W.V. · Chemical Engineering Transactions (2025) · DOI: 10.3303/cet25119087

Resumen

The mercury contamination in forest soils at the Madre de Dios region has been a longstanding issue, stemming from mining activities. Various elements, including climate, microorganisms and water resources, have facilitated the spread of mercury through the trophic chain impacting the area’s ecosystem and nearby communities. This study proposes employing iron nanoparticles to diminish mercury presence in forest soils. Soil samples extracted from mining camps located in the district of Huepetuhe, Peru; which were subjected to three concentrations from mining sites in Huepetuhe, Peru were exposed to iron nanoparticles concentrations of 2.5 mg/kg, 5 mg/kg and 7.5 mg/kg. Each sample underwent analysis after 24 hours, 48 hours and 72 hours, to reliably assess the reduction in mercury levels. The results revealed a maximum mercury reduction efficiency of 95.33 %, with the 5 mg/kg dose, which yielded the most favorable results. Copyright

Instituciones: Universidad Nacional Agraria La Molina; Universidad César Vallejo