This powerpoint presentation begins by presenting project objectives that include the following: to determine the impacts of the ultrafiltration (UF) design on the hydrodynamics; and, to determine the consequences on the fouling and the clogging. The methods included: develop and optimize CFD tool to characterize the hydrodynamics of an ultrafiltration module by monitoring the distribution of inlet water in the connection box; assess results of the CFD modeling throughout experimental trials by conducting a pilot study for local pressure measurements; and, evaluate the impact of the hydrodynamic on the fouling propensity of the membrane module by monitoring the distribution of flow along the fiber. Both the CFD results and the environmental results are presented. Presentation conclusions indicate the following: CFD results - hydraulic path heterogeneities within the connection box, pressure head-losses inside the fibers provide a pressure equilibrium; experimental results - good correlation between CFD/experimental measurements; and, impact on membrane performances - fouling in the upper part, clogging in the lower part but only 2% of fibers concerned. Includes figures.