Análisis de la cama de turba como filtro en el tratamiento de aguas residuales provenientes de la lavadora y lubricadora de autos “Lavauto” ubicada en la ciudad de Latacunga provincia de Cotopaxi

Abstract

This research was done to evaluate the efficiecy of the peat as a filtering material of the effluent produced in the carwash “LAVAUTO” located in Latacunga. For the designing of the pattern the concept of hydaulic residence time was taken HRT. The time of the test was 90 days with a flow rate of 0.105 liters/sec. The material used was the Canadian sphagnum peat. The average of flow rate in LAVAUTO industry is 1320 liters/day, using 120 liters to wash each car. An unfiltered sample and 9 filtered sample was taken, one each 10 days approximatly to analyze them based on BOD5, COD, Oil and Grease parameters. Since the first days, the peat has an instant efficiency, that result was almost the same during the 90 days of analysis. About 80 days of operation, the peat filter has the maximus efficiency of remotion, reaching abuot the 100%. The efficiency of Canadian sphagnum peat for the removal of BOD5, COD and oils and grease in the effluent in this industry was notorious, reaching levels of contamination below the established in the TULSMA regulation, even getting the removal of almost all of the contaminants. To determine the useful life of the material with accuracy, a larger study with a longer period of operation is necessary.