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Published on: June 2, 2022
Guazuma ulmifolia: an environmentally friendly coagulant aid for water treatment
Leticia Cardoso Madureira Tavares1, Alisson Carraro Borges1, Teresa Cristina Fonseca da Silva2
1Department of Agricultural Engineering, Federal University of Viçosa, Ave. PH Rolfs s/n, Campus Universitário, Viçosa, Minas Gerais 36700-900, Brazil
Abstract:
In the present work the use of a promising novel coagulant aid, Guazuma ulmifolia, was optimized to treat synthetic water using central composite being highly efficient at rotatable design (CCRD). The factors evaluated for the coagulation-flocculation process were coagulants dosages and pH. A model to describe the coagulation-flocculation process was successfully obtained. The model was validated using 5 mg L-1 aluminum sulfate, 2.5 mg L-1 G. ulmifolia and pH 9, achieving excellent agreement with observed values.
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