Cake washing in a membrane filter press

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Filter media pore size comparison between porometry and glass bead challenge testing

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TiO2 cake washing overall system

Cake washing normally is used to flush out impurities from a formed cake that contains soluble impurities.1 The voids of the filter cake are normally filled by the purer liquid during the cake washing process. Many examples of industrial cake washing applications are practiced, but the key ones are generally for pigments and dyestuffs, agricultural …

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Nonwoven filter media

Porometry has been used extensively for more than 25 years to assess pore size distributions of nonwoven filter media and their relation to filtration performance (Refs. 1, 2). There is even an ASTM procedure (F316) that describes the maximum pore size (bubble point), as well as the pore size distribution by measuring air flow at …

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biosludge membrane

Conventional horizontal filter presses suffer from one major disadvantage, i.e., operators must be present during cake discharge to assure that all cakes are removed (to avoid potential leakage and/or damage). As a result, a significant number of mechanical devices have been developed over the years to automate this cake discharge (e.g., traveling cloths, shakers, vibrators, …

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Straining and sludge/process dewatering in industry is normally accomplished by a variety of intake water strainers, by sand filters and by filter presses and automatic pressure filters, as well as centrifuges, belt presses and screw presses. General wastewater removal techniques for industrial streams along with specific nuclear plant wastewater treatments and sintered metal filters are also discussed

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