Published Basic dyestuffs removal from textile effluents using feathers: equilibrium, kinetic and column studies by Sousa J., Freitas O. M. and Figueiredo S. A.
Published Removal of dyes from aqueous solutions by adsortion on mixtures of fly ash in batch and column techniques by Albanis T.A., Hela D.G., Sakellarides T.M. and Danis T.G.