A Research on the Morphology and Composition of Flocs (Part 2: Floc Breakage Included)

Shi Qiang Ding; Yuan Yuan Wei; Xin Rong Pang; Ji Run Xu

doi:10.4028/www.scientific.net/AMR.726-731.1585

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 726-731A Research on the Morphology and Composition of...

A Research on the Morphology and Composition of Flocs (Part 2: Floc Breakage Included)

Abstract:

The floc breakage plays an important role in the flocculation, the stable floc size or morphology distribution is the result of the equilibrium of formation and breakage. In this paper, the breakage approaches or models for different kind and size of flocs have been discussed. By introducing special breakage functions and comparing their relative values, the numbers of various flocs are verified to be still proportional to the suspension concentration compared with the situation in which the breakage is neglected. However, as illustrated in this paper, the total number of every kind of floc is still a power function of the suspension concentration for dilute suspensions where the number concentration of solid particles is linearly related to the volume concentration. This is similar to that where the breakage is disregarded, although the number for every kind of floc is inevitably changed. In addition, a potential quantitative method to analyze the relative composition of different kinds of flocs is presented by measuring the contributions of the flocs to the suspension viscosity.

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Periodical:

Advanced Materials Research (Volumes 726-731)

Pages:

1585-1590

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.726-731.1585

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Online since:

August 2013

Authors:

Shi Qiang Ding, Yuan Yuan Wei, Xin Rong Pang, Ji Run Xu

Keywords:

Breakage, Composition, Flocs, Morpholoy, Rheology

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