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Solid-liquid Filtration And Separation Technology, First Edition
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The separation of particulate solids fiom liquids by filtration and associated techniques constitutes an important and often controlling stage m many industrial processes. The latter generate a somewhat bewildering array of particlehid separation problems. Separation by filtration is achieved by placing a permeable filter m the path of the flowing suspension. The barrier, ie. a filter screen, medium or membrane m some cases is selected with a view to retaining the suspended solids on the filter surfice, whilst permitting passage of the clarified liquid. Other systems, e.g. deep-bed or candle filters, operate m a diBerent mode, in promoting deposition of the particles within the interstices of the medium. Further purXcation of the clarified liquid may proceed m u s e of adsorbents to remove dissolved solutes. Alternatively, the two phases may be separated by sedimentation processes, m the presence of gravitational or cent&& force fields.
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Posted in books by kdsaggi
on Feb. 09, 2008 // 10:46
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