Kinetics of Reaction-Crystallization of Struvite in the Continuous Draft Tube Magma Type Crystallizers——Influence of Different Internal Hydrodynamics

摘要/Abstract

摘要： A laboratory-scale reaction-crystallization process of struvite synthesis from diluted water solution of Mg²⁺,NH₄⁺ and PO₄^3- ions was studied.The research covered the tests of two original constructions of continuous jet-pump Draft Tube Magma(DTM)-type crystallizers with internal circulation of suspension(upward/downward).Interactions between constructional,hydrodynamic and kinetic factors were established and discussed.Nucleation and linear growth rates of struvite crystals were calculated on the basis of population density distribution.Kinetic model of idealized Mixed Suspension Mixed Product Removal(MSMPR) crystallizer considering the size-dependent growth mechanism was applied(Rojkowski hyperbolic equation).For comparison purposes the kinetic data corresponded to a simpler,continuous draft tube-type crystallizer equipped with propeller agitator were analyzed.It was concluded that crystal product of larger size was withdrawn from the jet-pump DTM crystallizer of the descending flow of suspension in a mixing chamber.

关键词: reaction-crystallization, struvite, phosphorus recycling, nucleation, crystals growth, DTM MSMPR crystallizers, size-dependent growth kinetics, liquid jet pump, propeller agitator

Abstract: A laboratory-scale reaction-crystallization process of struvite synthesis from diluted water solution of Mg²⁺,NH₄⁺ and PO₄^3- ions was studied.The research covered the tests of two original constructions of continuous jet-pump Draft Tube Magma(DTM)-type crystallizers with internal circulation of suspension(upward/downward).Interactions between constructional,hydrodynamic and kinetic factors were established and discussed.Nucleation and linear growth rates of struvite crystals were calculated on the basis of population density distribution.Kinetic model of idealized Mixed Suspension Mixed Product Removal(MSMPR) crystallizer considering the size-dependent growth mechanism was applied(Rojkowski hyperbolic equation).For comparison purposes the kinetic data corresponded to a simpler,continuous draft tube-type crystallizer equipped with propeller agitator were analyzed.It was concluded that crystal product of larger size was withdrawn from the jet-pump DTM crystallizer of the descending flow of suspension in a mixing chamber.

Key words: reaction-crystallization, struvite, phosphorus recycling, nucleation, crystals growth, DTM MSMPR crystallizers, size-dependent growth kinetics, liquid jet pump, propeller agitator

Joanna Koralewska, Krzysztof Piotrowski, Boguslawa Wierzbowska, Andrzej Matynia. Kinetics of Reaction-Crystallization of Struvite in the Continuous Draft Tube Magma Type Crystallizers——Influence of Different Internal Hydrodynamics[J]. , 2009, 17(2): 330-339.

参考文献

1 Rojkowski, Z., Synowiec, J., Crystallization and Crystallizers, WNT, Warszawa (1991). (in Polish)
2 Mullin, J.W., Crystallization, Butterworth-Heinemann, Oxford (1993).
3 Matynia, A., “Crystallizers with a jet pump”, Inz. Ap. Chem., 36 (6), 9-14 (1997). (in Polish)
4 Koralewska, J., Matynia, A., Piotrowski, K., Wierzbowska, B., “Precipitation of barium ions with solid ammonium sulphate in a continuous DTM crystallizer with liquid jet-pump of ascending suspension flow in a mixing chamber”, Chem. Proc. Eng., 27, 1555-1579 (2006).
5 Koralewska, J., Matynia, A., Piotrowski, K., Wierzbowska, B., “Crystallization of barium sulphate in a continuous DTM type crystallizer with a jet-pump of descending suspension flow in a mixing chamber”, In:Materials of the International Congress of Chemical and Process Engineering CHISA 2006, No. 278, Prague, Czech Republic (2006).
6 Matynia, A., Koralewska, J., Wierzbowska, B., Piotrowski, K., “Jet-pump crystallizers in the reaction-crystallization processes of sparingly soluble salts”, Pol. J. Chem. Technol., 7 (3), 56-64 (2005).
7 Koralewska, J., Matynia, A., Wierzbowska, B., Piotrowski, K., “Hydroxyapatite crystallization process in a DTM crystallizer of descending suspension flow in a mixing chamber”, Pol. J. Chem. Technol., 8 (3), 25-27 (2006).
8 Koralewska, J., Piotrowski, K., Wierzbowska, B., Matynia, A., “Nucleation and crystal growth rates of struvite in DTM type crystallizer with a jet-pump of descending suspension flow in a mixing chamber”, Am. J. Agril. Biol. Sci., 2 (4), 260-266 (2007).
9 Koralewska, J., Piotrowski, K., Wierzbowska, B., Matynia, A., “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”, Chem. Eng. Technol., 30 (11), 1576-1583 (2007).
10 Donnert, D., Salecker, M., “Elimination of phosphorus from waste water by crystallization”, Environ. Technol., 20, 735-742 (1999).
11 Parsons, S.A., “Recent scientific and technical developments:Struvite precipitation”, Scope Newslett., 41, 15-22 (2001).
12 Doyle, J., Parsons, S.A., “Struvite formation, control and recovery”, Wat. Res., 36, 3925-3940 (2002).
13 Booker, N.A., Pristley, A.J., Fraser, I.H., “Struvite formation in wastewater treatment plants:Opportunities for nutrient recovery”, Environ. Technol., 20, 777-782 (1999).
14 Bridger, G., “Fertiliser value of struvite”, Scope Newslett., 43, 3-4 (2001).
15 de-Bashan, L.E., Bashan, Y., “Recent advances in removing phosphorus from wastewater and its future use as fertilizer”, Wat. Res., 38, 4222-4246 (2004).
16 Matynia, A., Koralewska, J., Kwiecien, J., “The influence of the continuous crystallization process parameters on the crystal size distribution of struvite”, Pol. J. Chem. Technol., 5 (4), 83-89 (2003).
17 Matynia, A., Koralewska, J., Piotrowski, K., Wierzbowska, B., “The influence of process parameters on struvite continuous crystallization kinetics”, Chem. Eng. Commun., 193, 160-176 (2006).
18 Koralewska, J., Matynia, A., Piotrowski, K., Wierzbowska, B., “Reaction-crystallization process in a struvite precipitation technology-Application of a continuous DTM crystallizer with a jet-pump generating descending flow of suspension in a mixing chamber”, Chem. Agricult., 7, 380-391 (2006).
19 Bechtold, Z., Malasinska, M., Matynia, A., Piotrowski, K., “Influence of selected jet-pump design parameters on a unit power of feeding stream in a DTM crystallizer with descending suspension flow in a mixing chamber”, Chem. Agricult., 7, 371-379 (2006).
20 Bechtold, Z., Malasinska, M., Matynia, A., Piotrowski, K., “Influence of selected jet-pump design parameters in a DTM crystallizer with ascending suspension flow in a mixing chamber on a unit power of feeding stream”, Inz. Ap. Chem., 45 (4s), 13-15 (2006). (in Polish)
21 Randolph, A.D., Larson, M.A., Theory of Particulate Processes:Analysis and Techniques of Continuous Crystallization, Academic Press, New York (1988).
22 Bransom, S.H., “Factors in the design of continuous crystallizers”, Brit. Chem. Eng., 5, 838-844 (1960).
23 Canning, T.F., Randolph, A.D., “Some aspects of crystallization theory:Systems that violate McCabe's Delta L Law”, AIChE J., 13, 5-10 (1967).
24 Abegg, C.F., Stevens, J.D., Larson, M.A., “Crystal size distribution in continuous crystallizers when growth rate is size-dependent”, AIChE J., 14, 118-122 (1968).
25 Rojkowski, Z., “New empirical kinetic equation of size dependent crystal growth and its use”, Kristall Technik, 12, 1121-1128 (1977).
26 Rojkowski, Z., “New hyperbolic empirical model of size dependent crystal growth”, Bulletin de L'Academie Polonaise des Sciences-Serie des sciences chimiques, 26, 265-270 (1978).
27 Rojkowski, Z., “Two parameter kinetic equation of size dependent crystal growth”, Kristall Technik, 13, 1277-1284 (1978).
28 Mydlarz, J., Jones, A.G., “On modeling the size-dependent growth rate of potassium sulphate in a MSMPR crystallizer”, Chem. Eng. Comm., 90, 47-56 (1990).
29 Mydlarz, J., “A hyperbolic crystal growth rate model”, In:Proceedings of 13th Symposium on Industrial Crystallization, Toulouse, France, 275-280 (1996).
30 Machej, K., Piotrowski, K., “Review and comparison of kinetic equations for mass crystallization design purposes”, Inz. Ap. Chem., 40 (5), 17-18 (2001). (in Polish)
31 Kamienski, J., Mixing Processes in the Multiphase Systems, WNT, Warszawa (2004). (in Polish)

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