Solid waste processing for industrial utilization— a few case studies

The production of low grade materials as waste during mining and processing operations is highlighted. The need for utilization of such materials for conservation and sustainability of mineral resources is explained.
The case studies of three solid waste materials—Manganese dump ores, Sericitic Pyrophyllite and Rice Husk Ash is presented. Their characterization, processing and end-use application has been enumerated in detail to establish the fact that judicious processing can lead to sustainable resource utilization.