Biomass concentration in fluidized bed biological reactors

Cristiano Nicolella, Renzo Di Felice, Mauro Rovatti

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Synthetic wastewater treatment was carried out in a fluidized bed biological reactor with sand as support media. Biomass concentration in the bed was measured as total attached solid and recorded together with the bed expansion characteristics throughout the period of operations. A new method to estimate the reactor biomass concentration was developed and tested on the collected data. The method combines the Richardson and Zaki (1954) law for fluidized bed expansion, the definition of overall bed voidage and available literature data on biofilm dry density and gives an estimate of the biomass concentration by means of a non-linear minimization routine using experimental data of bed height versus fluid superficial velocity. The comparison between the values derived from the experimental measures and those calculated by means of the method has proved reasonably successful.

Original languageEnglish
Pages (from-to)936-940
Number of pages5
JournalWater Research
Volume31
Issue number4
DOIs
Publication statusPublished - Apr 1997
Externally publishedYes

Fingerprint

Fluidized beds
Biomass
biomass
dry density
Biofilms
Wastewater treatment
biofilm
Sand
sand
Fluids
fluid
reactor
method
wastewater treatment
comparison

Keywords

  • Bed expansion characteristics
  • Fluidized bed biological reactor
  • Reactor biomass concentration

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

Biomass concentration in fluidized bed biological reactors. / Nicolella, Cristiano; Di Felice, Renzo; Rovatti, Mauro.

In: Water Research, Vol. 31, No. 4, 04.1997, p. 936-940.

Research output: Contribution to journalArticle

Nicolella, C, Di Felice, R & Rovatti, M 1997, 'Biomass concentration in fluidized bed biological reactors', Water Research, vol. 31, no. 4, pp. 936-940. https://doi.org/10.1016/S0043-1354(97)80990-6
Nicolella, Cristiano ; Di Felice, Renzo ; Rovatti, Mauro. / Biomass concentration in fluidized bed biological reactors. In: Water Research. 1997 ; Vol. 31, No. 4. pp. 936-940.
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