Browsing by Author "Siza Altashig, Cristian Vinicio"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Análisis de la piedra pómez como material biodegradable y filtrante en el tratamiento de las aguas residuales provenientes de la Curtiduría Artesanal Palahua, ubicado en la parroquia Totoras, del cantón Ambato y de la provincia de Tungurahua
    (Universidad Técnica de Ambato. Facultad de Ingeniería Civil y Mecánica. Carrera de Ingeniería Civil, 2018) Siza Altashig, Cristian Vinicio; Moya Medina, Dilon Germán
    In order to analyze the behavior of a biodegradable material in a laboratory scale prototype bio-filter, wastewater produced in a tannery was treated with pumice, this material was used as a filtering medium, in order to reduce pollution levels of the effluents generated in this type of industries; besides taking advantage of the physical and chemical characteristics of this porous material; and the affinity to absorb dissolved pollutants in wastewater. Water quality parameters such as COD, BOD5, Cr6+ and pH, which were monitored for 15 days; in order to determine the degrees of concentration of contaminants and to know the efficiency of the pumice stone to treat wastewater from tanneries; From the results obtained, it was found that the levels of contamination of the liquid residues of a tannery are very high, besides it was identified that the biggest contaminant of the leather treatment process is hexavalent chromium, since it is considered a toxic, carcinogenic compound and gene mutant; so it needs special care before being thrown into the environment. The results of the study show that the pumice stone helps to reduce significantly the concentrations of pollutants of COD and BOD5, but with the results obtained it is verified that the water treated with the pumice stone does not reach the maximum limits allowed by environmental regulations in these two parameters. But, on the other hand, the results indicate that the pumice stone is a very promising biodegradable material to decontaminate wastewater containing Cr6+; since, it was demonstrated that this material can reduce the aforementioned contaminated up to 80.77% to the efficiency, as the highest value and up to 25.49% as the lowest value. Although the results obtained were not expected, it was shown that the pumice stone can efficiently treat Cr6+; and for future studies you can use this material and make a combination of biomaterials to obtain more effective results.