effects of shear on two microalgae species. contribution of pumps and valves in tangential flow filtration systems.the circulation of microorganisms in tangential flow filtration systems induces perturbations and then the damage of brittle cells. this work is focused on the shearing of two marine microalgae species (skeletonema costatum and haslea ostrearia), both largely cultivated in western france (région des pays de la loire). we have studied the effects of the circulation of these cells in pumps and valves. for the pumps, it is shown that shear stress is due to the type of pump, but that mechanical shea ...199910099576
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