Minerals | Free FullText | Valorization of South African Coal Wastes ...
Over 70% of South Africa's primary energy needs are still provided from coal [].To achieve market requirements, most of the runofmine (ROM) coal in South Africa (characterized in Table 1) is a result of beneficiation, approximately 30% to 40% of the total mass of coal mined in South Africa is, or has been, disposed as coal discards, typically in coal waste storage facilities ...