Towards a generalized physicochemical framework: WWTmod workshop position paper

Batstone, Damien J., Amerlinck, Youri, Ekama, George, Goel, Rajeev, Grau, Paloma, Johnson, Bruce, Kaya, Ishin, Steyer, Jean-Philippe, Takács, Imre, Vanrolleghem, Peter A. and Volcke, Eveline (2010). Towards a generalized physicochemical framework: WWTmod workshop position paper. In: P. Freedman, WEF Proceedings. 83rd Annual WEF Technical Exhibition and Conference (WEFTEC2010). WEFTEC 2010: 83rd Annual Water Environment Federation Technical Exhibition and Conference, New Orleans, LA, U.S.A., (1054-1071). 2-6 October 2010.

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Author Batstone, Damien J.
Amerlinck, Youri
Ekama, George
Goel, Rajeev
Grau, Paloma
Johnson, Bruce
Kaya, Ishin
Steyer, Jean-Philippe
Takács, Imre
Vanrolleghem, Peter A.
Volcke, Eveline
Title of paper Towards a generalized physicochemical framework: WWTmod workshop position paper
Conference name WEFTEC 2010: 83rd Annual Water Environment Federation Technical Exhibition and Conference
Conference location New Orleans, LA, U.S.A.
Conference dates 2-6 October 2010
Proceedings title WEF Proceedings. 83rd Annual WEF Technical Exhibition and Conference (WEFTEC2010)
Place of Publication Alexandria, VA, U.S.A.
Publisher Water Environment Federation
Publication Year 2010
Sub-type Fully published paper
ISSN 1938-6478
Editor P. Freedman
Volume 2010
Start page 1054
End page 1071
Total pages 18
Collection year 2011
Language eng
Formatted Abstract/Summary
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 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, 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. The authors of this position paper are participants of the WWTmod2010 Physico-Chemical workshop and other active contributors. Their objective was to outline the need, the methods, available knowledge and the fundamental approaches that would help to focus the effort of research groups to develop a physico-chemical framework specifically in support of whole-plant process modeling. The findings from the workshop, as well as the position paper are that in general, existing models such as produced by IWA for biological processes are limited by omission of key corrections such as non-ideal acid base behaviour, 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 activities by a dedicated Task Group, with both experimental and model development activities to clarify an approach to modeling of physiochemical processes.
Copyright ©2010 Water Environment Federation. All Rights Reserved.
Keyword Physico-chemical framework
pH calculation
Chemical equilibrium
Precipitation
Q-Index Code EX
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Presented during Session 22: "Municipal Wastewater Treatment: State of the Art in Wastewater Treatment Modeling: The Best of WWTmod 2010".

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Created: Thu, 06 Jan 2011, 11:16:25 EST by Hong Lee on behalf of Advanced Water Management Centre