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Environ Pollut. 1989;56(1):39-50.

Intraparticle diffusion of a basic dye during adsorption onto sphagnum peat.

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  • 1Department of Chemical Engineering, David Keir Building, The Queen's University of Belfast, Belfast BT9 5AH, UK.


The adsorption of a basic dye from aqueous solutions onto peat has been examined. Intraparticle diffusion in the peat pore structure is proposed as a mass transfer mechanism. The results indicate a diffusion process in occurring by a macropore and micropore controlled process. A diffusion rate parameter, k, is proposed and is correlated with possible system variables.

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