Author(s)

J. Mls

Abstract

The process of a transient sedimentation and the subsequent gravity thickening of a suspension is investigated. Making use of the partial differential equations describing the Darcian mechanics of two-phase systems, the process is formulated mathematically. The equation for the motion of the interface between the compression zone and the sediment zone is derived to complete the governing system of equations. The resulting non-linear moving boundary problem is solved numerically and the obtained results are presented. 1 Introduction. The process of compression of a suspension has to be known in detail when various industrial technologies are designed, e.g. when the optimum height of the compression zone of sedimentation tanks has to be determined. According to its energetic efficiency,

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