Institute of Environmental Engineering Research and Design , Beijing General Research Institute of Mining and Metallurgy Technology Group, Beijing, China
Kolela Joseph Nyembwe
School of chemical and metallurgical Engineering, University of the Witwatersrand, Johannesburg, South Africa
Assist. Prof. Soumitra Kumar Dinda
Department of Metallurgical and Materials Engineering, National Institute of Technology Rourkela, Rourkela, India