Uso del extracto de fique (Furcraea sp.) como coadyuvante de coagulación en tratamiento de efluentes de pastelería
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Date
2009
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Área Metropolitana del Valle de Aburrá
Corporación Universitaria Lasallista
Corporación Universitaria Lasallista
Abstract
Introduction. The results of the tests for the using of sisal leaves extract (Furcraea sp.) as a coagulation adjuvant in an industry from Bogotá D.C. are introduced. Objective. This process consists on removing solid waste that give turbidity and color to waste water, by the use of coagulant salts. Materials and methods. Treatability tests were performed in a jar test equipment using, as control variables, the color, turbidity, COD, pH and total dissolved solid waste parameters. Results. Even though the effluents analyzed contain low solid waste concentrations, average improvements of 17% of color removal, 28% in turbidity and 11% of COD abatement were obtained, concerning the use of the coagulant. This was achieved by the use of 20mg/L of ferric chloride hexahydrate as a coagulant and 5 mg/L of sisal leaves extract as an adjuvant, at a 4,62 pH. Conclusion. The use of sisal leaves as a coagulation adjuvant in pastry industries allows a medium removal, that is statistically significant (P<0,050), of 17% in the color values, 28% in turbidity values and 11% in COD, estimated on the values achieved by the use of the coagulant only and applied in water with a low load of pollutants, expressed as COD.
Description
Keywords
Fique (furcraea sp.), Efluentes industriales, Corporación Universitaria Lasallista, Área Metropolitana del Valle de Aburrá, Demanda química de oxígeno (DQO), Coagulación, Aguas residuales, Aguas residuales industriales, Tratamiento de aguas residuales, Pastelería