Azzaro-Pantel, Catherine and Biscans, Béatrice
and Domenech, Serge
and Freche, Michèle and Hanhoun, Mary
and Montastruc, Ludovic
and Pibouleau, Luc
Removal of phosphate from synthetic wastewater by struvite precipitation in a stirred reactor.
(2009)
In: COVAPHOS III-The Third International conference on the on the valorization of phosphates and phosphorus compounds, 18-20 March 2009, Morocco .
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(Document in English)
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Abstract
The cost of environmental protection and pollution prevention is increasing, above all because of stringent effluent quality standard. In that context, phosphorus impact on water pollution plays a major role because it accelerates eutrophication. This work addresses the problem of phosphorus recovery from synthetic wastewater by struvite precipitation. The general objective is to develop a methodology for an optimal design of an automated pilot reactor for the treatment of wastewater. In this perspective, preliminary precipitation experiments were carried out at laboratory scale to examine the effects of final pH, magnesium and phosphate concentrations in the influent. A thermodynamic model for struvite precipitation is proposed involving Davies activity coefficients. Keywords: Struvite, Precipitation, P-recovery, Stirred reactor, Modelling.
Item Type: | Conference or Workshop Item (UNSPECIFIED) |
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Audience (journal): | International peer-reviewed journal |
Audience (conference): | International conference proceedings |
Uncontrolled Keywords: | |
Institution: | Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) |
Laboratory name: | Laboratoire de Génie Chimique - LGC (Toulouse, France) - Procédés Systèmes Industriels (PSI) Centre Interuniversitaire de Recherche et d'Ingénierie des Matériaux - CIRIMAT (Toulouse, France) Laboratoire de Génie Chimique - LGC (Toulouse, France) - Génie des Interfaces & Milieux Divisés (GIMD) |
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Deposited On: | 16 Jul 2009 12:13 |
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