
New Peschiera Acquedot
read moreThe adaptation project of the Santa Marinella Nord purification plant includes a series of works aimed at improving the efficiency of wastewater treatment.
The work programme has been designed to minimise interference with the management and maintenance activities of the existing works, which continue to operate during all phases of work.
Adaptation of a secondary sedimentation unit by dividing it into two functional units:
The first unit for powering the actual system, with a capacity of up to 3 Qmn.
The second unit for the accumulation of rainwater, with a capacity of up to 2 Qmn.
Transformation of trickling filters
Conversion of the two existing trickling filters into a “single basin” system that includes the denitrification and nitrification phases of the treatment.
Secondary sedimentation
Implementation of a new secondary sedimentation phase.
Electrical cabinets
Construction of a new MV/LV cabinet.
Adaptation of the existing electrical transformer cabinet.
Control software:
Updating of the command and control software for the regulation of air during oxidation.
Service yards:
Updating of the command and control software for the regulation of air during oxidation.
Conversion of trickling filters
Transformation of two trickling filters into combined basins that include pre-denitro, oxidation-nitrification, recirculation of sludge and nitrates, secondary sedimentation.
New head lift
Construction of a new lifting system for the system.
Rainwater treatment
Adaptation of an existing basin for rainwater treatment.
Customer | Acea Ato 2 |
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Site | Municipality of Santa Marinella |
Timetable | Start: Dicember 2021 |
Detail of the service |
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Service execution quota:
100% Acea Infrastructure SpA
Amount of works
2.839.560,25 € (of which €180,000 are for security costs)
Served population
20.000 equivalent inhabitants
Average black water flow rate (Qm)
74 l/s
Max biological treatment flow rate (Qbio = 2,0*Qm)
148 l/s
Max flow rate to the system (Qmax = 3,1*Qm)
230 l/s
Dimensional characteristics of the sections
number of settlers: 2
settler diameter: 15,00 m
total area of settlers: 354 m2
number of volumes per denitrification: 2
volumes for denitrification: 395 m3 ciascuno
number of volumes for oxidation and nitrification: 2
volumes for oxidation and nitrification: 922 m3
number of rain tanks: 1
rain tank volume: 66 m3