The experimental results concerning kinetic aspects of struvite precipitation in a continuous DTM-type crystallizer with internal circulation of suspension forced by a liquid jet-pump are presented and discussed. Nucleation and crystal growth rates of struvite during reaction-crystallization processes in diluted water solutions of magnesium, ammonium, and phosphate ions were identified. Kinetic parameters were calculated on the basis of population density distributions adopting a simplified model of the mass crystallization process in a MSMPR crystallizer taking under consideration size-dependent growth (SDG) mechanism. The Rojkowski hyperbolic SDG model has proved to be the equation best statistically fitted to our own data set.

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Volume30, Issue11

November, 2007

Pages 1576-1583

Reaction-Crystallization of Struvite in a Continuous Liquid Jet-Pump DTM MSMPR Crystallizer with Upward Circulation of Suspension in a Mixing Chamber – an SDG Kinetic Approach

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Reaction-Crystallization of Struvite in a Continuous Liquid Jet-Pump DTM MSMPR Crystallizer with Upward Circulation of Suspension in a Mixing Chamber – an SDG Kinetic Approach

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