Diseño de una planta piloto para tratamiento de aguas residuales domésticas en la Isla Isabela Galápagos

Abstract

The design of a Domestic Wastewater Treatment Plant (PTAR) on Isabela Island constitutes a sustainable alternative that enables the reduction of environmental impact in the ocean where effluents are discharged. A 120-hectare PTAR was designed in Puerto Villamil on Isabela Island. The starting point was wastewater that exceeded the Maximum Permissible Limits in parameters such as BOD, COD and fecal coliforms. The Jar test was added for effluent purification, resulting in a dose of 4 mL of Al2(SO4)3 at a concentration of 15 mg/L as the optimal dose. After the process in the PTAR, the wastewater achieved removal rates of 89.5% for BOD5, 99.99% for fecal coliforms, and 78.56% for COD.