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Plan de seguridad de aguas residuales para la ciudad de Pérez Zeledón-Costa Rica.
(Instituto Tecnológico de Costa Rica, 2012)
Acueductos y Alcantarillados (AyA) is the institution responsible for collecting, transport and give treatment to the waste waters in the city of Perez Zeledon. They possess a system based upon oxidation treatment lagoons ...