Towards a generalized physicochemical framework

Batstone, Damien J., Amerlinck, Youri, Ekama, George, Goel, Rajeev, Grau, Paloma, Johnson, Bruce, Kaya, Ishin, Steyer, Jean-Philippe, Tait, Stephan, Takács, Imre, Vanrolleghem, Peter A., Brouckaert, Christopher J. and Volcke, Eveline (2012) Towards a generalized physicochemical framework. Water Science and Technology, 66 6: 1147-1161. doi:10.2166/wst.2012.300

Author Batstone, Damien J.
Amerlinck, Youri
Ekama, George
Goel, Rajeev
Grau, Paloma
Johnson, Bruce
Kaya, Ishin
Steyer, Jean-Philippe
Tait, Stephan
Takács, Imre
Vanrolleghem, Peter A.
Brouckaert, Christopher J.
Volcke, Eveline
Total Author Count Override 13
Title Towards a generalized physicochemical framework
Journal name Water Science and Technology   Check publisher's open access policy
ISSN 0273-1223
Publication date 2012-07-26
Sub-type Article (original research)
DOI 10.2166/wst.2012.300
Volume 66
Issue 6
Start page 1147
End page 1161
Total pages 15
Place of publication London, United Kingdom
Publisher IWA Publishing
Collection year 2013
Language eng
Abstract Process models used for activated sludge, anaerobic digestion and in general wastewater treatment plant process design and optimization have traditionally focused on important biokinetic conversions. There is a growing realization that abiotic processes occurring in the wastewater (i.e. ‘solvent’) have a fundamental effect on plant performance. These processes include weak acid–base reactions (ionization), spontaneous or chemical dose-induced precipitate formation and chemical redox conversions, which influence pH, gas transfer, and directly or indirectly the biokinetic processes themselves. There is a large amount of fundamental information available (from chemical and other disciplines), which, due to its complexity and its diverse sources (originating from many different water and process environments), cannot be readily used in wastewater process design as yet. This position paper outlines the need, the methods, available knowledge and the fundamental approaches that would help to focus the effort of research groups to develop a physicochemical framework specifically in support of whole-plant process modeling. The findings are that, in general, existing models such as produced by the International Water Association for biological processes are limited by omission of key corrections such as non-ideal acid–base behavior, as well as major processes (e.g., ion precipitation). While the underlying chemistry is well understood, its applicability to wastewater applications is less well known. This justifies important further research, with both experimental and model development activities to clarify an approach to modeling of physicochemical processes.
Keyword Chemical equilibrium
Physicochemical framework
pH calculation
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
Advanced Water Management Centre Publications
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Created: Mon, 08 Oct 2012, 16:29:33 EST by Dr Stephan Tait on behalf of Advanced Water Management Centre