Influence of C/N ratio on autotrophic biomass development in a sequencing batch reactor
authors Seixo, J; Varela, MH; Coutinho, JAP; Coelho, MAZ
nationality International
journal BIOCHEMICAL ENGINEERING JOURNAL
author keywords batch processing; bioreactors; biological nitrogen removal; autotrophic; modelling; wastewater treatment
keywords AEROBIC RBC BIOFILM; NITROGEN REMOVAL; SIMULTANEOUS CARBON; WASTE-WATER
abstract Experimental limitations on biomass assignment in wastewater treatment units lead to an oversimplified description of the complex competing biological system. Different microorganisms are usually considered as a single entity expressed as suspended volatile solids measured by gravimetry. This work proposes a method to access autotrophic biomass fraction in a carbon/nitrogen removal system using a reduced order model. This approach allows for the determination of the autotrophic biomass fraction in response to changes in feed concentration and operational strategies in a sequencing batch reactor. The results herein presented clearly demonstrate the influence of operating conditions and batch scheduling in the resultant autotrophic fraction responsible for processes bioconversions in such a competing system. The linear relationship obtained between the autotrophic fraction and the ratio C-org/N of the load can be used for biomass assignment as well as for the development of on-line estimators. (C) 2004 Elsevier B.V. All rights reserved.
publisher ELSEVIER SCIENCE SA
issn 1369-703X
year published 2004
volume 21
issue 2
beginning page 131
ending page 139
digital object identifier (doi) 10.1016/j.bej.2004.06.005
web of science category Biotechnology & Applied Microbiology; Engineering, Chemical
subject category Biotechnology & Applied Microbiology; Engineering
unique article identifier WOS:000224136200003
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 3.475
5 year journal impact factor 3.491
category normalized journal impact factor percentile 68.517
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg