The project consists of the construction of a new biological treatment unit as the final stage of the existing treatment. The aim is to adapt the industrial discharge to the legal specifications of the new Supreme Decree of the Government of Peru (037-2008-PCM).
This work, whose investment amounts to 5,500,000 euros, has been carried out at the Repsol Refinery in La Pampilla, Lima.
The proposed effluent treatment facility includes the following treatment stages:
- Biological reactors
- Secondary decanters
- Sterilisation of effluent
- Recirculation of active sludge
- Sludge digestion
- Thickening of sludge digested by DAF flotation
- Drying of sludge thickened via centrifugation
The layout of the scheduled plant, with two independent treatment lines integrated by a biological reactor and a secondary decanter for each line, allows for the adapting the operation of the new unit to variations in the flow of effluents coming from the refinery.