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- Title
AVALIAÇÃO DE TAMANHO DE BOLHAS EM COLUNA DE FLOTAÇÃO POR ANÁLISE DE IMAGEM USANDO OS SOFTWARES IMAGEJ E APBS.
- Authors
de Almeida, Renata Nigri; da Cruz Barreto, Estevão Gomes; Bianquini Couto, Hudson Jean
- Abstract
The average size and the bubble size distribution (BSD) are important variables in the flotation process, as they influence the efficiency on collecting and transporting the particles. In this context, the aim of this work was to measure and evaluate the average size and BSD generated in a flotation column as a function of some important variables of the flotation process. The Anglo Platinum Bubble Sizer (APBS) was used to capture and visualize the bubbles. The images of the captured bubbles were processed using two softwares, the APBS and the ImageJ (public domain), in order to compare the results obtained by both. In addition to calculating the diameter of the bubbles, it was possible to perform measurements of gas holdup (ξg) and critical coalescence concentration (CCC) for Flotanol D14, surfactant evaluated. The results obtained from ξg and CCC showed a good agreement with the values found in the literature. The ImageJ software was considered more reliable for image processing and bubble size analysis due to its control of the processing step.
- Subjects
IMAGE processing; BUBBLES; FLOTATION; PLATINUM; DIGITAL image processing
- Publication
Tecnologia em Metalurgia, Materiais e Mineração, 2019, Vol 16, Issue 3, p378
- ISSN
2176-1515
- Publication type
Article
- DOI
10.4322/2176-1523.20191795