Kinetic model for an up-flow anaerobic packed bed bioreactor: Dairy wastewater treatment

Kinetic studies of anaerobic digestion process of cheese whey were conducted in a pilot-scale up-flow anaerobic packed bed bioreactor (UAPB). An influent COD concentration of 59419 mg/l was utilized at steady state condition. Logistic and Monod kinetic models were employed to describe microbial acti...

Full description

Saved in:
Bibliographic Details
Published in:African journal of biotechnology 2009-08, Vol.8 (15), p.3590-3596
Main Authors: Najafpour, G D, Tajallipour, M, Komeili, M, Mohammadi, M
Format: Article
Language:English
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Kinetic studies of anaerobic digestion process of cheese whey were conducted in a pilot-scale up-flow anaerobic packed bed bioreactor (UAPB). An influent COD concentration of 59419 mg/l was utilized at steady state condition. Logistic and Monod kinetic models were employed to describe microbial activities of cheese whey in an anaerobic digester. The hydraulic retention times (HRT) in the range of 6 to 24 h were investigated throughout the experiments. Lactose conversions were 58.5 and 99.4% for HRT of 6 and 16 h, respectively. The methane production rates were 6.57 and 3.25 l/h for HRT of 6 and 24 h, respectively. Monod biokinetic coefficients, K sub(s), k sub(m) and methane yield (Ym) were 8.59, 7.63 (h super(-1)) and 0.11 (g methane/g lactose), respectively.
ISSN:1684-5315
1684-5315