VDP Srl

DESCRIPTION OF THE PROJECT

The activities concern the verification of acoustic compatibility and the representation of the environmental acoustic climate generated by the production activities of the waste treatment plants / compartments managed by Herambiente S.p.A. in relation to the surrounding areas and to the presence of residential and / or sensitive receptors.

The study is conducted through acoustic measurements carried on field and, in some cases, also through a special forecasting program for the propagation of noise. The activities carried out concern, for each treatment plant:

· Acquisition of municipal acoustic classification plans; · acquisition and analysis of specific authorization requirements; · characterization of internal noise sources; · detection of source operating modes; · detection of noise at the perimeter of the plant; · detection of noise on external housing receptors ; · verification of compliance with the acoustic input and emission limits, as indicated in the acoustic zoning; · verification of compliance with the limits of the differential criterion; · technical and descriptive report of the activities.

The acoustic measurements are both long-lasting, with control units working continuously from a minimum of 24 hours to a maximum of two weeks, and short, with operator-assisted survey in two intervals, one during the day and one at night with reference to one or more days.

The phonometric measurements are carried out with third-octave frequency analysis to check for the presence of tonal components.

STUDY SPECIFICITY

The work concerns 23 plants distributed mainly in Emilia-Romagna region, some of which are investigated more than once during the year.

The phonometric surveys are carried out using up to a maximum of eight sound level meters simultaneously .