CONINUOUS FILTRATION

CONTINUOUS FILTRATION Since testing and scale-up are different for batch and continuous filtration, discussion in this section will be limited to continuous filtration. It is both convenient and reasonable in continuous filtration, except for precoat filters, to assume that the resistance of the filter cloth plus filtrate drainage is negligible compared to the resistance of the filter cake and to assume that both pressure drop and specific cake...

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FILTRATION: FILTRATION THEORY

A.      FILTRATION THEORY While research has developed a significant and detailed filtration theory, it is still so difficult to define a given liquid-solid system that it is both  faster and more  accurate  to determine  filter requirements by performing  small-scale tests. Filtration  theory does,  however, show how the test data can best be correlated, and extrapolated when necessary, for use in scale-up calculations. In cake or surface filtration, there are two primary areas...

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FILTRATION: DEFINITION AND CLASSIFICATION

DEFINITIONS AND CLASSIFICATION OF FILTRATION Filtration is the separation of a fluid-solids mixture involving passage of most of the fluid through a porous barrier which retains most of the solid particulates contained in the mixture. This subsection deals only with the filtration of solids from liquids; gas filtration is treated in Sec. 17. Filtration is the term for the unit operation. A filter is a piece of unit-operations equipment by which filtration is performed. The filter medium or septum is the barrier that lets the liquid pass while...

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