Uncertainty in bulk-liquid hydrodynamics and biofilm dynamics creates uncertainties in biofilm reactor design

Water Science and Technology : a Journal of the International Association on Water Pollution Research
Joshua P Boltz, G T Daigger

Abstract

While biofilm reactors may be classified as one of seven different types, the design of each is unified by fundamental biofilm principles. It follows that state-of-the art design of each biofilm reactor type is subject to the same uncertainties (although the degree of uncertainty may vary). This paper describes unifying biofilm principles and uncertainties of importance in biofilm reactor design. This approach to biofilm reactor design represents a shift from the historical approach which was based on empirical criteria and design formulations. The use of such design criteria was largely due to inherent uncertainty over reactor-scale hydrodynamics and biofilm dynamics, which correlate with biofilm thickness, structure and function. An understanding of two fundamental concepts is required to rationally design biofilm reactors: bioreactor hydrodynamics and biofilm dynamics (with particular emphasis on mass transfer resistances). Bulk-liquid hydrodynamics influences biofilm thickness control, surface area, and development. Biofilm dynamics influences biofilm thickness, structure and function. While the complex hydrodynamics of some biofilm reactors such as trickling filters and biological filters have prevented the widespread use ...Continue Reading

Citations

Nov 27, 2014·Biotechnology and Bioengineering·Maria P HerrlingHarald Horn
Mar 13, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Bruce E RittmannPeter A Vanrolleghem
Jul 1, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Joshua P BoltzNicolas Derlon
Apr 30, 2017·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Joshua P BoltzGlen T Daigger
Jul 15, 2011·Water Environment Research : a Research Publication of the Water Environment Federation·James P McQuarrie, Joshua P Boltz
Nov 10, 2020·Environmental Technology·Alessandro di BiaseJan A Oleszkiewicz
Feb 27, 2021·Chemosphere·Alessandro di BiaseJan A Oleszkiewicz

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