Current Views on Hydrodynamic Models of Nonideal Flow Anaerobic Reactors

A critical review of the different hydrodynamic mathematical models available for nonideal flow configurations of both low-rate and high-rate anaerobic reactors is presented, including upflow anaerobic sludge blanket reactors, anaerobic fluidized bed reactors, anaerobic biofilters, wet and dry diges...

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Bibliographic Details
Published in:Critical reviews in environmental science and technology 2015-10, Vol.45 (20), p.2175-2207
Main Authors: Liotta, Flavia, Chatellier, Patrice, Esposito, Giovanni, Fabbricino, Massimiliano, Van hullebusch, Eric D., Lens, Piet N. L., Pirozzi, Francesco
Format: Article
Language:English
Subjects:
anaerobic processes
biofilter
Computational fluid dynamics
Dispersions
dry anaerobic digestion
Fluid Dynamics
Fluid flow
fluidized bed
Fluidized bed reactors
General overviews
Hydrodynamics
mathematical modeling
Mathematical models
Physics
Reactors
Sludge
Tanks
UASB
Water treatment plants
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Summary:A critical review of the different hydrodynamic mathematical models available for nonideal flow configurations of both low-rate and high-rate anaerobic reactors is presented, including upflow anaerobic sludge blanket reactors, anaerobic fluidized bed reactors, anaerobic biofilters, wet and dry digesters. The review highlights the role of mathematical modeling on design and operational optimization of organic waste and wastewater treatment plants. For each reactor configuration the following approaches, proposed by various authors, are presented and compared: (a) plug flow model, (b) tank in series model, (c) dispersion model, and (d) computational fluid dynamic model. The review gives a general overview on mathematical modeling of anaerobic nonideal plug-flow reactors and compares different models indicating the advantages and disadvantages to apply them for different reactor type.
ISSN:1064-3389
1547-6537
DOI:10.1080/10643389.2015.1010426