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Use of the Weibull model on sizing thickeners ‐ Part I : Sedimentation curve representation
Author(s) -
Ferreira Daniel José de Oliveira,
Fiuza Matheus Pires de Mattos,
Cardoso Marcelo,
Oliveira Idalmo Montenegro
Publication year - 2021
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23904
Subject(s) - weibull distribution , sizing , representation (politics) , sedimentation , relation (database) , curve fitting , experimental data , computer science , statistics , mathematics , algorithm , data mining , geology , chemistry , paleontology , organic chemistry , sediment , politics , political science , law
The present work aims to represent the sedimentation curve of different industrial pulps through the Weibull model PDF, which employs two parameters k and γ, dispensing the graphical methods to design thickeners and clarifiers, using exclusively mathematical equations. This provides greater accuracy and increases significantly the speed in sizing calculations. To ratify the use of the model, sedimentation curves of various types of pulps were generated in the laboratory, several types of curves were obtained through tests given in the literature and exhaustive comparison tests between the data obtained in the tests and those predicted by the model. The proposed model presented good data adjustment in relation to those obtained in several bibliographic references, presenting maximum error of 12%.