Community Noise Impact of Sewage Treatment Plants: Discussion About Acoustic Treatment of Pumping Rooms

This paper presents technical considerations on acoustic and ventilation designs of air blowers used in most Sewage Treatment Plants. These equipment may cause annoyance to people living in the neighborhood of these plants. Acoustic treatment should take into account the heat emitted by these equipment. In order to achieve optimal system operation, maximum room temperature must be controlled; therefore, air intake and air discharge attenuators must be appropriately sized. To illustrate this subject, the acoustic design made for one specific Sewage Treatment Plant located in the state of São Paulo, Brazil, is shown.