Supplied Inhabitants

Purification of urban and industrial wastewater

This Wastewater Treatment Plant will treat the urban and industrial wastewater from the municipality of Lugo.

General Information

  • Entity: Ministry of the Environment. Confederación Hidrográfica del Norte.
  • Location: Lugo (Galicia). Spain.
  • Capacity: Flow: 76,500 m3/day. Population: 200,000.

Key points

Design and construction of WWTP in Lugo. The facility is composed of a water line and a sludge line.

The water line includes:

  • General bypass for maximum flow.
  • Two prefilter wells with screens.
  • Two channels equipped with rotating and disintegrating sifters.
  • Two pumping wells for the elevation of raw water.
  • Four discharge canals.
  • Four desanding-deoiling canals.
  • Six primary decanters.
  • Measurement and regulation of the flow into the biological treatment stage.
  • Biological treatment in four lines.
  • Recirculation of sludge.

The sludge line is made up of:

  • Primary sludge purge.
  • Excess sludge purge.
  • Sludge thickening process.
  • Excess sludge thickening.
  • Anaerobic digestion.
  • Storage of digested sludge.
  • Dehydration and thermal drying

Additionally, odour treatment has been provided and the facility has been equipped with a network of water services, airing network and with all the auxiliary equipment for the correct operation of the same (laboratory, workshop, maintenance equipment, etc).

Discover other projects of ACCIONA

All of our projects