Análisis de piedra pómez como filtro en el tratamiento de aguas residuales provenientes de la industria florícola La Herradura Floherrera S.A, ubicada en el cantón Salcedo

Abstract

The experimental project which analyzes the efficiency of pumice as filtering material of wastewater from the floriculture industry specifically collected in the post-harvest area, aims to reduce contaminating parameters such as COD, BOD5 and chromium in a 90-day treatment period . For this purpose, a model of 0.105 l / min can be obtained each working day. For this study it was necessaryG to understand the different processes that are carried out in the industry as well as their infrastructure, this data facilitated the determination of the results of entry and exit of generated wastewater. The flows generated are 0.5 lt / sec input and 0.489 lt / sec output The analyzes were taken every 10 days to determine the levels of contamination of the samples, the decrease of the contaminant parameters that took as reference the sample 1 that corresponds to the water without obtaining results of chromium (0.003 mg / l), COD (875 mg / l) and BOD5 (420 mg / l). Sample 2 corresponds to filtered water on day 10, where the best results were obtained for chromium (0.003 mg / l), COD (160 mg / l) and c (76 mg / l). When comparing the results of the samples of water and filtered water, the efficiency of the stone in the elimination of the parameters was determined, with high percentages of efficiency of up to COD (81.7%) and BOD5 (81.9%). In the case of chromium, it was determined that this parameter does not present a great contaminating influence.