Escher-Wyss pressure filter

The so-called axial filter , developed in the Oak Ridge National Laboratory, is remarkably similar to Morton s and Kaspar s dynamic filter in that the filter leaf is in the tubular form and the outer shell is also cylindrical. An ultra-filtration module based on this principle has also been described more recently. Unlike the European dynamic filters referred to in the previous paragraph, however, this filter is not suitable for scale-up because it poorly utilizes the available space. The Escher-Wyss pressure filter described (identical copy of this paper also appeared subsequently in Filtration and Separation ) takes the idea of axial filtration a step further in... 

Tobler, W., Dynamic filtration—the engineering concept of the Escher-Wyss pressure filter, Escher-Wyss News, 2/1978-1/1979, pp. 21-23 also in Filtration and Separation, 16, 630-632 (1979)... 

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