Analysis of Treatment and Utilization Approaches of Solid Waste from Metal Mines
Abundant solid waste such as waste ore(soil),slag,tailings is produced during mining and mineral processing of metal mines,which will take up many lands and result in environmental pollution and damage.Zijinshan Gold-copper Mine in Fujian province is one of the super huge bases for producing nonferrous metals,chiefly using open pit mining,heap leaching and CIL reclaim processes.The main solid waste generated includes waste ore,heap leaching slag and CIL tailings.As the annual output of solid waste is tremendous and will have profound impact on the ecological environment in mining area if disposed on site,various means and methods have been adopted to deal with the solid waste in Zinjinshan Gold-copper Mine during more than 10 years since its foundation.The paper makes a conclusion and analysis on the treatment and utilization approaches of solid waste in Zijinshan Gold-copper Mine and presents effective recommendations on ecological rehabilitation and reconstruction of abandoned mining lands,which can be as the reference for the solid waste treatment of numerous gold mines in China.