Adaptation of the La Chiusa purification plant

infrastructure of a water treatment plant with a water tank infrastructure of a water treatment plant with a water tank

Description and objectives

 

The project aims to improve the sludge line of the "La Chiusa" sewage purification plant in Velletri, which serves a large part of the municipal territory with a capacity of 40,000 equivalent inhabitants (e.i.). This intervention is aimed at complying with the limits established by Legislative Decree 152/06 and the Regional Water Protection Plan (RWPP) of Lazio, thus protecting the receiving water body, Fosso della Regina.

Project Objectives

 

  • Adapt the system to comply with current regulations.

     

  • Improve the efficiency of sludge treatment.

     

  • Reduce odour emissions and improve air quality.

     

  • Increase the safety and functionality of the system.

 

 

Planned Interventions

 

Adjustment of the medium/low voltage transformer section

  • Installation of a new MV panel and two 800 kVA transformers.

  • Construction of a new prefabricated concrete box for the LV general framework.

     

Trattamento dei fanghi di supero

  • Construction of a new aerobic stabilisation basin.

  • Installation of a circular thickening tank.

  • Replacement of the existing press belt with a new high-performance centrifuge..

  • Construction of a containment box for the sludge box.

     

     

Covers and air treatment

    • Installation of aluminium covers on the sludge thickening and stabilisation tanks.

    • Installation of an air treatment system for these units and for mechanical dehydration.

    Internal viability and arrangement of green areas

    • Expansion and arrangement of internal roads.

    • Creation of new flooring, tree planting and reprofiling of the escarpment behind the current digestion basin.

       

    Medium and fine sieving

    • Improvements in sieving units to filter debris.

     

    Rainwater treatment

    • Creation of a section dedicated to rainwater treatment.

    Deodorisation

    • Creation of a new section for the deodorisation of emissions, using a biofilter and a scrubber.

    Carpentry and equipment

    • Installation of metal structures, iron works, electromechanical equipment and machinery for treatment units.

       

       

    Provisional works

    • Securing a dangerous building by means of wooden restraint underpinning.

    Detail project

     

    Customer  

    Acea Ato 2

    Site  

    Municipality of Velletri

    Timetable  

    Start: January 2011
    Ongoing

    Detail of the service  

    Executive project

    Key numbers

    Service execution quota

     

    100% Acea Infrastructure SpA

    Work Amount

     

    10.338.000 €

    including security charges

    Sewage purification plant potential

     

    40.000 equivalent inhabitants

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