INFLUENCE OF ORGANIC LOADING RATE ON THE ANAEROBIC TREATMENT OF HIGH-STRENGTH SEMISYNTHETIC WASTE-WATERS IN A BIOLOGICAL FLUIDIZED-BED

Authors
CONVERTI A DELBORGHI M FERRAIOLO G
Citation
A. Converti et al., INFLUENCE OF ORGANIC LOADING RATE ON THE ANAEROBIC TREATMENT OF HIGH-STRENGTH SEMISYNTHETIC WASTE-WATERS IN A BIOLOGICAL FLUIDIZED-BED, Chemical engineering journal and the biochemical engineering journal, 52(1), 1993, pp. 20000021-20000028
Citations number
28
Categorie Soggetti
Engineering, Chemical
Journal title
Chemical engineering journal and the biochemical engineering journal → ACNP
ISSN journal
09230467
Volume
52
Issue
1
Year of publication
1993
Pages
20000021 - 20000028
Database
ISI
SICI code
0923-0467(1993)52:1<20000021:IOOLRO>2.0.ZU;2-0
Abstract
The results of anaerobic digestion in a fluidized bed reactor fed with municipal waste waters enriched with glucose are presented. Several p rocess conditions have been tested by varying the influent chemical ox ygen demand (COD) from 4 to 13 kg m-3 and the residence time from 5.0 to 68.2 h. The degradation efficiency and methane production rate are substantially affected by an increase in organic loading rate from 4 t o 24 kgCOD(i) m-3 day-1, suggesting a maximum operational value for th is parameter. Using a Monod-type kinetic model, a maximum theoretical specific degradation rate of 1.76 kgCOD(r) kgVSS-1 day-1 has been calc ulated, which is very similar to values calculated for other effluents from food industry activities.