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Some fluidization characteristics of biological beds
Author(s) -
Hermanowicz S. W.,
Ganczarczyk J. J.
Publication year - 1983
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260250512
Subject(s) - fluidization , environmental science , biochemical engineering , chemistry , engineering , fluidized bed , organic chemistry
The free‐fall terminal velocity of particles coated with a nitrifying biofilm was investigated. The drag force exerted by the liquid on a biocoated particle was found larger than that for an uncoated particle. A new formula for the drag coefficient was proposed. The wet density of biofilm was estimated as 1.14 g/cm 3 . A proposed modification of the Zaki‐Richardson method was successfully used for calculations of the porosity of a fluidized bed.
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