The least ecological threat comes from the concentrations of Mn2+ in the mine dump sites.
The Latin square design was employed in the current study to control the variation in the experiments related to rows and columns in the mine dump sites.
The propagation of P. ostreatus can be employed as a restoration measure for the soil ecosystems contaminated by heavy metals at the mine dump sites.
The greatest threat to the ecology in the Mazowe Pote River catchment areas is currently posed by Cd2+, Fe3+ and Pb2+ heavy metals from the mine dump sites.
Results have shown that the greatest threat to the ecology in the mine dump sites is currently posed by Cd2+; Fe3+; and Pb2+, while the least ecological threat comes from the concentrations of Mn2+.
The background contaminant concentration values were obtained in soil samples collected from a virgin forest about 5 km upstream of the mine dump sites within the Mazowe Pote river system (Fig. 1).
The typical plot survey method was used to analyze the dynamic succession law of soil environmental factors and vegetation biomass with reclamation years (3, 5, 10, 12 and 17 years) in the Shanxi Antaibao opencast coal mine dump.
This implies that the greatest threat to the ecology in the Mazowe Pote River catchment areas is currently being posed by Cd2+, Fe3+ and Pb2+ heavy metals from the mine dump sites.
4, 5) ecological risk indices were used in the current study as diagnostic tools for pollution control purposes, and are the basis for attaching special attention for the specific contaminants Mn2+, Cr2+, Pb2+, Fe3+ and Cd2+ within the mine dump sites.
The current study presents an analysis of heavy metal pollution and the possibility for use of a basidiomycetes P. ostreatus in the bioremediation of mine dump waste at four selected mine dump sites around the mining town of Bindura in central Zimbabwe.
The pit samples collected from a depth of 0 20 cm for each treatment at each selected mine dump site were taken to a laboratory and dried in an oven at 450 °C for 48 h.
