Bioprocess Engineering

, Volume 20, Issue 4, pp 363–368

Physical stability and biological activity of biofilms under turbulent flow and low substrate concentration

  • L. F. Melo
  • M. J. Vieira
Article

DOI: 10.1007/s004490050604

Cite this article as:
Melo, L. & Vieira, M. Bioprocess Engineering (1999) 20: 363. doi:10.1007/s004490050604

Abstract

The paper focuses on biofilms subject to turbulent flow and high liquid velocity (of the order of 1 m s−1) which can be found in heat exchangers, water distribution systems and in some wastewater reactors. An overall model describing biofilm development is presented, which includes the effects of biomass detachment due to the hydrodynamic forces. A methodology for estimating substrate consumption from data obtained through continuous monitoring of biofilm growth is presented. Results show that the physical stability of the biofilm increases with the liquid velocity, while the rate of substrate consumption decreases.

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • L. F. Melo
    • 1
  • M. J. Vieira
    • 1
  1. 1.University of Minho, Centro de Engenharia Biologica Institute for Biotechnology and Fine Chemistry, 4700 Braga, PortugalPT