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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Flocculation: considerations from the classical analysis and from direct evaluation of particle size distribution

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Rodrigo Braga Moruzzi [1] ; André Luiz de Oliveira [2] ; Marcelo De Julio [3] ; Ricardo Henrique de Andrade Dutra [4] ; Pedro Augusto Grava da Silva [5]
Total Authors: 5
[1] Universidade Estadual Paulista Julio de Mesquita Filho - Brasil
[2] Universidade Federal de Uberlândia - Brasil
[3] Instituto Tecnológico de Aeronáutica - Brasil
[4] UFU - Brasil
[5] UNESP - Brasil
Total Affiliations: 5
Document type: Journal article
Source: Engenharia Sanitária e Ambiental; v. 21, n. 4, p. 817-824, 2016-08-11.

ABSTRACT: This article presents some considerations on the flocculation from the classical analysis and direct evaluation of the particle size distribution. For this purpose, essays in bench scale were performed. The results were evaluated in the light of classical approach, given by the dimensionless number Camp (GT) and the kinetics of aggregation and breakage, as well as particle size distribution. It has been found that the use of GT isolated product is not suitable to represent the variations in flocculation performance and the classical model of aggregation and break-up can be biased by an indirect measurement of turbidity and sedimentation as an intermediate step. On the other hand, the direct evaluation of performance by particle size distribution, represented by linear continuous function, can be a promising tool for the evaluation of flocculation. (AU)

FAPESP's process: 13/01634-3 - Particle distribution size by image analyses
Grantee:Pamela Moreno
Support type: Scholarships in Brazil - Master
FAPESP's process: 10/50694-0 - Development and application of an on-line floc sizer device aiming at the optimization of coagulation/flocculation and filtration
Grantee:Marcelo de Julio
Support type: Research Grants - Research Partnership for Technological Innovation - PITE
FAPESP's process: 13/25641-9 - Procedure etermination for image acquisition to determine flocculent particles size in static reactors
Grantee:Pedro Augusto Grava da Silva
Support type: Scholarships in Brazil - Scientific Initiation