Proceso de coagulación en el tratamiento de las aguas residuales de una heladería: eficiencia de diferentes coagulantes de origen inorgánico

Abstract

This work was aimed at solving an environmental problem generated by the wastewater of the food premises of the shopping centers of the city of Bogotá, especially the ice cream shop "mimos A.S". The objective was to perform a coagulation process to decrease the turbidity of wastewater by testing jugs using different salts of inorganic origin such as Aluminium Sulfate, Ferric Chloride, Ferrous Sulfate, Ferric Sulfate and a mixture of Aluminium Sulfate and Ferric Chloride The tests were conducted by triplicated using an experimental surface response design and the results obtained from turbidity removal were analyzed using a statistical analysis of variance known as TUKEY, this analysis was performed to see if there were statistically significant differences between their means and thus determine the optimal dose and the most suitable coagulants, finding that three of the coagulants used were optimal for this type of reducing turbidity levels by 90% to 95%. However, a cost study determined that Aluminum Sulfate with a dose of 400 ppm is the most suitable coagulant for the purification of waste water from this ice cream parlor.