REACTION OF CALCIUM HYDROXIDE WITH CARBON DIOXIDE: VELOCITY GRADIENT IN THE JAR TEST CHAMBER
Abstract
Water treatment for human consumption faces the significant challenge of maintaining consistent water quality within the supply system. There is particular concern about high calcium concentrations in regions where soil is formed by the erosion of limestone rocks, resulting in water with calcium levels exceeding the limits prescribed by regulatory bodies. This leads to health problems and limitations for use in various sectors. The objective of this study was to react calcium in water using carbon dioxide and quantify the velocity gradient using a Jar Test. The operational concentration gradients were: 5.2 times greater than the lowest gradients used in coagulation and flocculation in water treatment; and 0.074 to 0.71 times lower than the highest velocity gradients described, respectively.
Author Biographies
Holds a degree in Civil Engineering (1980) and a Master’s in Chemical Engineering from the University of Uberaba (1980). Currently works as a Systems Analyst – Civil Engineer at CODAU – Companhia Operacional de Desenvolvimento, Saneamento e Ações Urbanas, Uberaba, MG, Brazil.
Holds a degree in Chemical Engineering (1973), a Master’s in Food Engineering (1984), and a PhD in Food Engineering from UNICAMP (1989). Currently teaches in the undergraduate Chemical Engineering program at the University of Uberaba (UNIUBE), serves as Coordinator of the Professional Master’s Program in Chemical Engineering, and is a professor in the Master’s Program in Animal Health and Production in the Tropics. Former professor of the Graduate Program at UFU.
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