ASIL Merone S.p.A.

Consortium installations

Purpose of the project

With the entry into force of Lombardy Regional Regulation No. 3 of 24 March 2006, the plant required an upgrade of its purification capacity.
Design flow rate = 1,200 m3/h in dry weather – 4,400 m3/h in wet weather

Capacity = 120,000 A.E.

Process designer
Civil, electro-instrumental, piping designer
Geologist, agronomist

Design: 2006 – 2013

Completion of construction and start of testing: end of 2017

6.500.000,00 €

Performed services

Pre-feasibility, preliminary and final.

Adaptation of the Merone (Como) purification plant to the new emission limits established by Lombardy Regional Regulation no. 3 of 24 March 2006.

Project Plus

Anaerobic nitrite handling supernatant treatment system with reduced energy consumption
and reagent consumption (approx. 30% electricity and 40% COD savings);
New MBBR moving-bed biomass post-denitrification section;
Filtration on cloth filters for 4,400 m3/h.

Activities

Initial lift
Disinfection system: UV lamps and peracetic acid
inlet water distribution channel to the biological
Primary sludge screening system at digester inlet
Water storage and recycling systems
Tertiary filtration treatment
Existing predenitrification modifications
Post-denitrification section
Nitrite supernatant treatment system
Chemical-physical treatment for phosphorous removal
Chemical storage
Foam return sump