The application of process systems engineering to the development of struvite recovery systems

Schneider, P.A., and Ali, Md I. (2009) The application of process systems engineering to the development of struvite recovery systems. In: Proceedings of the 2009 International Conference on Nutrient Recovery from Wastewater Streams. From: 2009 International Conference on Nutrient Recovery from Wastewater Streams, 10 - 13 May, 2009, Vancouver, BC, Canada.

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Abstract

A model for struvite suspension crystallisation from seed, incorporating solution thermodynamics and crystal growth kinetics, is developed. The set of differential algebraic equations is implemented within the gPROMS simulation environment. The aqueous phase chemical equilibria employed in the model are validated against PHREEQc. Unknown kinetic model parameters related to crystal growth rates were successfully estimated, by combining this model with an ensemble of data generated in three separate experiments carried out in a 44-l suspension crystalliser. In principle this model can be used for more confident process design of suspension crystallisation of struvite. The approach described can potentially be applied to precipitation-based struvite recovery systems.

Item ID: 11307
Item Type: Conference Item (Refereed Research Paper - E1)
ISBN: 978-1-84339-232-3
Date Deposited: 19 May 2010 00:43
FoR Codes: 09 ENGINEERING > 0904 Chemical Engineering > 090407 Process Control and Simulation @ 75%
09 ENGINEERING > 0904 Chemical Engineering > 090409 Wastewater Treatment Processes @ 25%
SEO Codes: 90 COMMERCIAL SERVICES AND TOURISM > 9004 Water and Waste Services > 900403 Water Recycling Services (incl. Sewage and Greywater) @ 50%
96 ENVIRONMENT > 9611 Physical and Chemical Conditions of Water > 961199 Physical and Chemical Conditions of Water not elsewhere classified @ 50%
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