JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Generalized Relation between Liquid Pressure and Solid Compressive Pressure in Non-Unidimensional Filter Cakes
Tsutomu AragakiSetsuro HiraokaIkuho YamadaToshiro MuraseEiji IritaniMompei Shirato
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1989 Volume 22 Issue 4 Pages 358-363

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Abstract

In recent studies of cake filtration, a new deliquoring technique called as “filtration consolidation” was proposed. It is principally based on the mechanism of non-unidimensional filtration and gives a highly compacted cake without any additional mechanical load. To investigate the deliquoring mechanism of filtration consolidation in detail, it is essential to find a relation between liquid pressure PL and solid compressive pressure PS in non-unidimensional filter cake.
Accordingly, a generalized PLPS relation applicable to any cake profile and filtrate flow pattern of complicated geometry is derived in terms of an orthogonal curvilinear coordinate system. It is also shown that, starting from the generalized equation, all the PLPS relations already reported for non-unidimensional filter cakes of relatively simple geometries can be easily reduced.

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© 1989 The Society of Chemical Engineers, Japan
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