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.
Assessment of toxicity and anaerobic degradation of antiosmotic drug based pharmaceutical effluent in an upflow anaerobic fluidized bed system by Saravanane R., Murthy D. V. S. and Krishnainah K.