Cake Uniformity in pressure filtration of coal slurry

D. J. Sung, J. G. Groppo, B. K. Parekh

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


In filtration and dewatering processes the cake structure and the degree of homogeneity of solids in the filter cake are important parameters. The paper describes a novel modified laboratory approach for producing a uniform structure filter cake in pressure filtration. The uniformity of the filter cake, described in terms of the mixing index, was derived using the Kramers model for various types of cake formation conditions. The study identified that a low moisture level in the filter cake results from uniform distribution of particles with a mixing index greater than 0.750. It is also shown that the filter cake moisture and the mixing index are inversely proportional, i.e. a higher mixing index provided a lower-moisture filter cake.

Original languageEnglish
Pages (from-to)819-824
Number of pages6
JournalFiltration and Separation
Issue number8
StatePublished - Dec 1994

Bibliographical note

Funding Information:
This work was supported by the US Department of Energy through the Fossil Energy Program under grant no. DE-FG22-92PC92550.

ASJC Scopus subject areas

  • General Environmental Science
  • Filtration and Separation
  • Industrial and Manufacturing Engineering


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