Diseño de una planta de tratamiento biológico para las aguas residuales urbanas del municipio de Pamplona.

Abstract

The growth and development of the population of the municipality of Pamplona has brought with it an increase in the demand of water, and therefore also liquid waste generated after being used in the different processes; waste that are thrown into the Pamplonita river without any prior treatment, causing environmental, social and health problems to a greater extent to the municipalities located downstream of the main discharge (primary source of water). In the present degree work, a wastewater treatment plant was designed for the municipality of Pamplona, for this purpose, a population and demand projection of the urban area of the municipality was carried out, which was the basis for estimating the flow of design; Once estimated, together with the concentrations of BOD, COD and TSS (taken from the last characterization, carried out at the main discharge of wastewater in the municipality of Pamplona), they were used to calculate the main water pollutant loads. Based on these loads, an analysis of alternatives was carried out, which allowed to select the best technology for the municipality and finally, the WWTP was designed at the process level . The selected treatment system has the following structures: an inlet channel with grids, three grit traps, two primary settlers, two trickling filters, two secondary settlers, a chlorination tank with its respective operating house, two thickeners and digesters sludge anaerobes. With a designed wastewater treatment plant, effluent concentrations of 13.9 to 64.8 mgBOD / L are obtained, complying with the maximum permissible discharge limits to receiving bodies for municipal wastewater proposed by resolution 0631 of 2015 of the Ministry of the Ministry of Environment and Sustainable Development. This design proposal provides the municipality of Pamplona with a mitigation measure to the problem of contamination of the Pamplonita river and reduces the risks to the health of the inhabitants of this and other affected municipalities.