Suppliers Inhabitants

Improvement, service and management and maintenance

Cagliari, Monserrato, Quartu S. Elena, Quartucciu and Selargius Waste Water Treatment Plant Remodeling and Serviceoperation and Maintenance, and Water Elevation to the Municipalities of Is Arenas, S. Bartolometo E Borgo Sant’elia

General Information

  • Entity: Comune di Cagliari
  • Localización: Cagliari, Sardinia, Italy
  • Population: 1,150,000 hab/eq
  • Capacity: 260,000 m3/day

Key points

Water line

  • Raw water elevation
  • Screening
  • Sieving
  • Grit and grease removal.
  • Primary settling
  • Half load, piston flow active sludge reactor biological treatment.
  • Secondary settling
  • Effluent disinfection

Sludge line

  • Primary sludge purge
  • Biological sludge purge
  • Thickening
  • Anaerobic digestion
  • Band filters and centrifugal pumps dehydration
  • Biological Gas line
  • Biological gas storage in gasholder
  • Electrical power generation
  • Sludge heating
  • Surplus biological gas burning
  • Auxiliary services
  • Compressed air production and distribution
  • Service water production by sand filtration and distribution.
  • Drinking water distribution
  • Installations Up-Dating
  • Biological nitrogen removal system installation using Nitrification Denitrification in the biological reactors.
  • Installation of a system to adapt flows from septic tanks and rubbish Gump lixiviates previous to their incorporation to the ordinary plat treatment

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