The Bello Wastewater Treatment Plant (WWTP) is located in the municipality of Bello, where Empresas Públicas de Medellín (Medellín Publicly Owned Enterprises) have lands with a surface area of 45 hectares. The municipalities of Medellín and Bello are located in the Aburrá Valley in the centre of the Department of Antioquia, in the Republic of Colombia, in the northwest of South America.

The wastewater is conveyed to the Bellow WWTP through a network of sewers and interceptor sewers. The project included the construction of an interceptor sewer with a length of 8 km and an average diameter of around 2.2 m. The plant has an average design capacity of 5 m3/s and a maximum capacity of 6.5 m3/s. The construction of this infrastructure contributes to the sanitation of the River Medellín, achieving dissolved oxygen levels of over 5.0 mg/l. The result is a better quality of life for the residents of the Aburrá Valley, particularly those living in the northern municipalities.

The WWTP implements activated sludge secondary treatment, with thickening of primary and secondary sludge, dewatering of digested sludge and odour control systems. The facility is equipped with energy recovery processes, through which electricity is generated for self-consumption.

Plant Report published in: #59 FuturENVIRO April 2019