Published Central Composite Design in a Refinery’s Wastewater Treatment by Air Flotation by F. Rigas, P. Panteleos, C. Laoudis rigas_0.pdf
Published Basic dyestuffs removal from textile effluents using feathers: equilibrium, kinetic and column studies by Sousa J., Freitas O. M., Figueiredo S. A. 100-107_820_Figueiredo_14-1.pdf