Dr. Ibrahim Gaballah
Mineral Processing and Environmental Engineering Laboratoire Environnement et Mineralurgie 7569, ENSG-LEM, Rue de Doyen M. Roubault, 54501 Vandouvre, France.
Tel: +33-383-596336  Fax: +33-383-569585
e-mail: Ibrahim.Gaballah@ensg.inpl-nancy.fr

Prof. B. Mishra
Dept. of Metallurgical & Materials Engineering.
Colorado School of Mines, Golden, Colorado, USA.
Tel: +1-303-273-3893  Fax: +1-303-273-3975
e-mail: bmishra@mines.edu

Prof. Masaru Tanaka, Department of Environmental and Civil Engineering. Faculty of Environment Science and Technology.
Okayama University. 1-1, Tsushima-Naka, 3-chome, Okayama 700-8530 JAPAN.
Tel/Fax +81-3-5421-3175
e-mail: maxta@cc.okayama-u.ac.jp