Dewatering of fine-particle slurries using a compound-beach decanter with cake-flow control

Woon Fong Leung, Ascher H. Shapiro

Research output: Publication in policy / professional / specialist journalArticle (for policy / professional audience)Academic researchpeer-review

7 Citations (Scopus)


A decanter centrifuge of novel design was developed for the dewatering of fine-solids slurries having micron-range particles that form paste-like, flowable, hard-to-dewater cakes. The design combines a compound beach with a cake-flow control structure that allows expressed liquid from the cake in the dry beach region to be returned back to the liquid pool while maintaining high solids throughput. In order to provide optimal performance with various operating parameters (feed rate, centrifugal gravity, pool, differential speed, concentration of feed solids, and different slurry types), the cake-flow control is adjustable. The second part of the beach is preferably at zero angle. Tests showed that the new design allows increases in both solids dryness and solids throughput.
Original languageEnglish
Number of pages8
Specialist publicationFiltration and Separation
Publication statusPublished - 1 Jan 1999

ASJC Scopus subject areas

  • Environmental Science(all)
  • Filtration and Separation
  • Industrial and Manufacturing Engineering


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