Browsing by Author "Nata Llamuca, José Vinicio"

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    Análisis de piedra pómez como filtro en el tratamiento de aguas residuales provenientes de una lavadora y lubricadora de autos “City Wash”, ubicada en la ciudad Ambato, provincia de Tungurahua
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Civil, 2018) Nata Llamuca, José Vinicio; Morales Fiallos, Fabián Rodrigo
    The objective of this experimental project is to determine the effectiveness of the stone as a filtering material in the treatment of wastewater. Therefore, a 55-gallon container and a plastic container containing the stored wastewater and filtering material, respectively, were implemented. The volume of pumice stone that was used of 35 liters with a flow rate of 0.105 lt / min for the filtration process. To evaluate the effectiveness of the filter, three parameters were analyzed: Biochemical Oxygen Demand (BOD5), Chemical Oxygen Demand (COD) and Oils and Fats, during a period of 40 days of operation, in which 10 were taken samples of raw and filtered water in the days of higher production previously determined in the "City Wash" industry, to be analyzed later in an accredited laboratory, which guarantees the reliability of results. The values obtained indicate a reduction of pollution levels in an average percentage of 34.42%, 35.66%, 38.87% of BOD5, COD, Oils and Fats respectively, and consequently reach admissible values for the TULSMA standard. These results allow to verify that the pumice stone is filtering material could be used as an ideal option in the pretreatment of effluents generated by car washers, since in this particular case the degree of contamination was reduced in each parameter.