General Information
- Entity: ESVAL, S.A.
- Location: Region V, Chile
- Population: 29,000 eq/inhab
- Flow: 4,579 m3/day
Key points
Treatment
- Raw water pumping
- Breaking down and sand/silt trapping
- Biological treatment with active sludge with aerobic sludge stabilisation and removal of nitrogen by nitrification-denitrification
- Air supplied by turbines
- Chlorine gas disinfection
- Digested sludge dehydration with 2 centrifuges