Speaker
Description
This study assessed the environmental impact of small-scale kaolin mining activities in Rawayau, Kurfi LGA of Katsina State, Nigeria on soil and water quality through the analysis of selected physicochemical parameters and heavy metal concentrations. Soil samples were collected from the mining sites and a control site located away from mining points, while water samples were obtained from a nearby river. Laboratory analyses were carried out using standard methods, including Atomic Absorption Spectrophotometry for heavy metals’ determination and X-Ray Fluorescence for mineralogical characterization of kaolin and associated materials. The results showed variations in physicochemical properties and heavy metal concentrations between samples collected from the mining area and those from the control site. The XRF analysis revealed that silica (SiO₂) and alumina (Al₂O₃) were the dominant constituents of the kaolin deposit, confirming its suitability for industrial applications. Heavy metal concentrations in the analyzed samples were generally within the permissible limits recommended by WHO, although mining activities may contribute to localized environmental disturbances such as land degradation, soil erosion, vegetation loss, and increased sedimentation. The study concludes that small-scale kaolin mining in Rawayau have both economic benefits and environmental consequences. Therefore, proper environmental management practices, land reclamation measures, and regular monitoring of soil and water quality are recommended to minimize adverse environmental impacts and ensure sustainable mining operations.
Keywords: Kaolin. Mining, Environmental Impact, Soil quality, Water quality, Rawayau-Katsina State.
| Title | Environmental Impact of Small Scale Kaolin Mining in Rawayau, Central Katsina, NW Nigeria |
|---|