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The Role of Floc Density in Solid-Liquid Separation

(1998) The Role of Floc Density in Solid-Liquid Separation. Filtration & Separation , 35 (1) pp. 571-575.

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Abstract

Flocculation is a very important step in many solid-liquid separation processes and the structure of flocs can greatly influence the efficiency of separation. Flocs are typically fractal objects, for which the density decreases appreciably with increasing floc size. The open structure of large flocs can give much lower sedimentation rates than for more compact flocs of the same mass, because of increased drag. For similar reasons, cake filtration rates can be affected by floc density. Basic concepts of fractal aggregates are briefly reviewed, and the factors which influence floc density considered. Some important practical consequences are discussed

Type: Article
Title: The Role of Floc Density in Solid-Liquid Separation
Keywords: Density, Factors, filtration, floc density, flocculation, process, processes, rate, separation, solid-liquid separation
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: http://discovery.ucl.ac.uk/id/eprint/33440
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