Metal Lability and Mass Transfer Response to Direct-Planting Phytostabilization of Pyritic Mine Tailings.

ABSTRACT: Understanding the temporal effects of organic matter input and water influx on metal lability and translocation is critical to evaluate the success of the phytostabilization of metalliferous mine tailings. Trends of metal lability, e.g., V, Cr, Mn, Co, Ni, Cu, Zn, and Pb, were investigated for three years following a direct-planting phytostabilization trial at a Superfund mine tailings site in semi-arid central Arizona, USA. Unamended tailings were characterized by high concentrations (mmol kg^-1) of Fe (2100), S (3100), As (41), Zn (39), and Pb (11), where As and Pb greatly exceeded non-residential soil remediation levels established by Arizona. Phytostabilization treatments included a no-compost control, 100 g kg^-1 compost with seed, and 200 g kg^-1 compost

SUBMITTER: Hammond CM 

PROVIDER: S-EPMC9681136 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature