Results 211 to 220 of about 245,363 (260)
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Filtration Rates and Pressure Driving Force in AV Filtration
Blood Purification, 2008The whole blood filtration rate of hemofilters were measured in in vitro circuits simulating the pressure and flow conditions of arteriovenous filtration. For all devices tested, filtration rate was found to be independent of blood velocity and wall shear rate but to increase linearly with applied transmembrane pressure according to the following ...
Michael J. Lysaght +2 more
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The role of porosity in filtration: IV. Constant pressure filtration
AIChE Journal, 1960AbstractCertain assumptions which have previously served as a basis for the conventional equations employed in constant pressure filtration are shown to be in error. It is demonstrated that the specific filtration resistance, the ratio of the mass of wet to mass of dry cake, and the rate of flow, q = dv/dθ, are not constant as has been assumed.
F. M. Tiller, H. R. Cooper
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Setup for Semimicro Pressure Filtration
Journal of Chemical Education, 2019Semimicro pressure filtration is carried out by pressurizing a suspension through pushing the piston of a gas-filled plastic syringe whose needle perforates the closure of a cylindrical filter funnel. Basic features as well as pros and cons of vacuum and pressure filtration are pointed out and compared to support rational choice between the two ...
Bruno Lunelli, Massimo Baroncini
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Pressure filtration of flocculated suspensions
AIChE Journal, 1995AbstractFrom the development of a compressional rheology of a flocculated suspension, a number of separation processes have been modeled. With respect to the two‐stage pressure filtration process of compact formation and then consolidation, the rheological formulation appears at first examination to eb significantly at variance with the conventional ...
Kerry A. Landman +2 more
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An analysis of constant-pressure filtration
Chemical Engineering Science, 1994Up to now, the non-linear partial differential equation of filtration has not been solved, and the variation of hydraulic-pressure, flow rate of liquid and porosity in cake can only be analyzed by means of numerical techniques and compression—permeability simulation.
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Colloid Osmotic Pressure, Filtration, Interstitial Pressure
1969More than a hundred years ago [1859] Claude Bernard (quoted in [363]) recognized the importance of colloids for maintaining a normal BV. The classic work of Starling [1379] at the turn of the century laid the cornerstone for our ideas about oncotic pressure. In general his views are still valid today; he realized that proteins are also able to pass the
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A theory of constant pressure filtration
Chemical Engineering Science, 1970Abstract Attention is drawn to two equivalent analyses that describe the one dimensional process of “cake” filtration. These analyses, which arise from conventional theory of flow of fluid in porous media, permit the prediction of density gradients in the solid material at any time, as it accumulates on the filter membrane, and may be used to predict
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A Simple Apparatus for Pressure Filtration
Science, 1941E A, Brown, N, Benotti
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