Noise Emission Study GAZA CENTRAL DESALINATION PLANT
This report contains the Ambient noise level measurements were carried out at five appropriate positions at or near to the boundaries of the proposed GCDP and near the PV plant on ground structures, on Sunday to Monday 24 – 25 April and Wednesday to Thursday 18 – 19 May 2016. And the assessment of the noise associated with the Gaza Seawater Desalination project “Gaza Central Desalination Plant” (GCDP). Short-term noise impacts associated with the project would result from construction activities associated with on-site facilities at GCDP and nearby-site 2 Wind Turbine Plant and off-site PV power plant. Long-term noise impacts would primarily result from mechanical equipment noise at the site and nearby-site 2 Wind Turbine Plant and the off-site PV power plant.
The modelling program IMMI-2016 by Woelfel Measurement Systems and Software GmbH was used for a number of different noise propagation according the international standards and offers a variety of graphical representations of the results of calculation.
It is necessary to summarize that in particular the diesel engines of the fossil power plant can cause high noise pollution at the nearest receptor point (NRP).
The following references could provide information and guidance on noise mitigation in building design:
ISO 717-1: 2013-03 Acoustics – Rating of sound insulation in buildings and of building elements – Part 1: Airborne sound insulation. [Acoustics – Rating of sound insulation in buildings and of building elements – Part 1: Airborne sound insulation], (Contain instructions and information regarding the design of plants).
The standard DIN 4109 Supplement 2: 1989-11; Sound insulation in buildings; construction examples and calculation methods, “DIN 4109 Beiblatt 1:1989-11”: (Contain information for planning and execution; Proposals for increased sound insulation; Recommendations for sound insulation in personal living and working areas).
The operation of the wind turbines can cause noise pollution by up to 34 dB (A) at the nearest receptor point (NRP).
The building which containing the used machines could reduce the sound propagation.
Construction phase / Earth works in the fields of GCDP/SWRO, the Wind turbines plant, as well as PV-Plant can cause noise emissions ranged between 59-78 dB (A) at the nearest receptor point (NRP).
Furthermore, the proposed short-term construction and long-term operational activities would generate noise levels above the limits set by the Palestinian and IFC/WBG standards for outdoor noise but would not substantially increase the existing ambient noise levels at the adjoining property boundaries. Therefore, the impact is not considered as significant. With all, the noise study recommends mitigation measures such as installing sound absorbing materials on the interior walls and ceiling surfaces, providing acoustical louvers, orienting the louver openings, locating the pump station to minimize noise exposure to the adjacent properties. These and other measures outlined in this report will be implemented and developed during the construction and operation phases in order to reduce the impact generated by the Project.