Determination the coefficients of San’s model, to calculate the percentage of removal flocculent particles with three coagulants types

Autor: Juan Carlos Ruge, Diego Pulgarín, Felipe Santamaría, Oscar Ivan Orduz
Jazyk: English<br />Spanish; Castilian
Rok vydání: 2019
Předmět:
Zdroj: Dyna, Vol 86, Iss 210, Pp 131-136 (2019)
Druh dokumentu: article
ISSN: 0012-7353
2346-2183
DOI: 10.15446/dyna.v86n210.74851
Popis: This study calculated coefficients for the model elaborated by Hasan Ali San in 1989 based on the percentage of flocculated particles removed by three coagulants commonly used for water purification. The coagulants used were type A aluminum sulfate, type B aluminum sulfate and ferric chloride. An experiment was designed to study water with initial turbidity between 25 and 30 Nephelometric Turbidity Units (NTU). The experiment consisted of filling a sedimentation column with water and colloid particles which were agitated rapidly and then slowly with compressed air. This allowed the percentage of particles removed from the remaining turbidity to be determined at different times and different depths by measuring sedimentation of the flocculated particles. Once percentages of material removed had been calculated, an isoconcentration graph was elaborated and multiple linear regression was used to determine the coefficients of the model proposed by San.
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