Colombia, Wastewater Treatment Plant Bello-Medellín

September 2017

Aguas Nacionales S.A. ESP, a subsidiary of Empresas Públicas de Medellín has awarded the Consultant and its local partner a contract covering assistance during the tender and construction phases of a wastewater treatment plant in Medellín and Bello.

The plant includes biological treatment by activated sludge and fine bubble aeration, sludge digestion and energy recovery, odor control, as well as the complete complementary infrastructure. The plant can be considered to be one of the most efficient and modern treatment plants in Latin America, with comparable standard to Western Europe.

Services provided include overall assistance to the project owner including complementary studies, adjustments to the tender documents, support during the tender phase and contract award of the construction works to a general contractor.

The construction will include the complete turn-key execution of the civil works and electro-mechanical installations, as well as the commissioning of the plant.

ClientEmpresas Públicas de Medellín, Colombia
LocationMedellín, Colombia
Services Period2006 – 2014
Project Cost200 million EUR
Technical Data
Mechanical and biological treatment stages (activated sludge)
  • Population
2.75 million PE
  • Average flow
5.0 m³/s
  • Peak flow
6.5 m³/s
  • BOD5 load
123 t/d
  • Final design
  • Preparation of technical specifications
  • Tender documents
  • Construction supervision




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