Análisis de grava como filtro en el tratamiento de aguas residuales proveniente de lavadora y lubricadora “Rida” ubicada en la ciudad de Patate – provincia de Tungurahua

Abstract

This experimental project carried out physical chemical analysis of wastewater before and after the filtration process. The parameters under study are: BOD, COD, Oils and fats. For the development of the experiment, the filter was in operation for 90 days, the samples were taken three times a month, which were analyzed in a specialized laboratory. An unfiltered residual water sample was analyzed to determine the level of contamination generated by the cars wash. The following samples were analyzed after the filtration process. The results obtained were compared with the values in Table 9. Limits of discharge to the public sewer system, from Book VI Annex 1: Environmental Quality Standard and discharge of effluents resource: Water from the Unified Text of Secondary Legislation, Environment. The efficiency of the filter was reflected in the results of the analyzes carried out before the filtering process, compared with those performed after the filtering process during the ninety days of filter operation. Once the results were analyzed, it was determined that the material (gravel) used in the filter has contributed to the reduction of the parameters under study, BOD5, COD, oils and grease, thus obtaining removal percentages of up to 98.8%, 95.86%, 100% respectively. Which gives us know that material (gravel) managed to decrease the values of the parameters mentioned.