. . . . . . . . . . . . . "Preliminary studies on the dewatering of coalclay waste slurries using a flocculant" . . . . . . "Preliminary studies on the dewatering of coal-clay waste slurries using a flocculant"@en . "Preliminary studies on the dewatering of coal-clay waste slurries using a flocculant" . . . . . .