화학공학소재연구정보센터
Canadian Journal of Chemical Engineering, Vol.88, No.1, 12-17, 2010
HYDRODYNAMIC BEHAVIOUR OF A FLUIDIZED BED REACTOR FOR PAPER MACHINE WHITEWATER CONTAMINANT REMOVAL
To comply with future stringent environmental regulations, paper mills will need to reduce fresh water consumption and reject loads by closing down their whitewater systems. However, excessive build-up of contaminants will occur affecting paper machine runnability (performance) and paper quality. We propose removing contaminants from paper machine whitewater by adsorption on matrices in a fluidized bed reactor. The aim of this study is to determine the effect of fines and fibres on bed expansion behaviour. Results show that bed expansion follows the Richardson and Zaki correlation but parameters must be modified according to the type of pulp found in the whitewater.