Abstract
The kinetics of irreversible adsorption of colloid and larger particles from flowing suspensions onto solid—liquid interfaces was studied theoretically and experimentally. The controlled forced convection transport conditions were realized by using the new experimental cell based on the slot impinging jet principle. From the numerical solution of the Navier—Stokes equation it was shown that the cell area in the vicinity of the symmetry plane is uniformly accessible for particles. This property facilitated a quantitative interpretation of experimental results obtained using the direct microscope observation method and monodisperse model suspensions. The influence of the flow rate (Reynolds number), bulk suspension concentration, and the ionic strength on the adsorption rate (initial flux) was studied systematically. The experimental results were found to be in quantitative agreement with the convective mass-transfer theory, indicating that the new cell was a powerful tool for studying colloid particle interactions with interfaces.
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