Application of a stochastic model to the breakage of flocs in stirred tanks

Nassar, Raja; Kim, Y. H.; Glasgow, Larry A.; Fan, Liang‐Shih

doi:10.1002/asm.3150050203

Appl. Stochastic Models Data Anal.

1989

DOI: 10.1002/asm.3150050203

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Application of a stochastic model to the breakage of flocs in stirred tanks

Raja Nassar

Y. H. Kim

Larry A. Glasgow

et al.

Abstract: SUMMARYA stochastic model is employed to account for the dynamic behaviour of floc breakage. More specifically, the evolution of the particle-size distribution over time is presented. The model is compared to experimental data obtained by exposing kaolin-iron(II1) flocs to hydrodynamic stress generated by a turbine impeller. The agreement between the model and experimental data appears to be satisfactory.

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1992

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Cited by 2 publications

References 15 publications

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A stochastic model for adsorption in an open flow system

Argyelán

Nassar

1992

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A stochastic1 model is developed to characterize flow, adsorption and transport of solute molecules through the solid phase in an open flow adsorber. The flow process is depicted as composed of n compartments with forward and backward flow connecting adjacent compartments. To account for adsorption and transport of solute molecules through the porous solid, the solid phase in each compartment is partitioned into an outer layer and an inner layer. The stochastic process model accounts for movement of solute molecules in the liquid phase, for the transfer of molecules between the liquid and the outer layer of the solid phase and for solute movement through the solid phase. From this model, one may predict the residence time distribution of a molecule in the system and the concentration profile of solute molecules in the outlet stream (breakthrough curve) and estimate the adsorption and flow parameters of the process. In addition to its usefulness in engineering treatment systems such as water and air purification, this modelling approach is useful in studying the transport of organic chemicals in the soil.

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A stochastic model for adsorption in an open flow system

Argyelán

Nassar

1992

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In situ measurement of particle aggregation and breakage kinetics in a concentrated suspension

1992

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Application of a stochastic model to the breakage of flocs in stirred tanks

Cited by 2 publications

References 15 publications

A stochastic model for adsorption in an open flow system

A stochastic model for adsorption in an open flow system

In situ measurement of particle aggregation and breakage kinetics in a concentrated suspension

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