Biogas methanation-cogeneration without noise pollution (ITS at Expobiogaz 2018 Strasbourg-France)

At a time when renewable energies are of particular interest, methanation (i.e. degradation by micro-organisms of waste/organic material under controlled conditions, especially in the absence of oxygen) is a popular process (since the resulting biogas can be used as fuel for a heat engine).

The combustion of biogas can enable the production of electrical energy and the recovery of heat (cogeneration): this constitutes a mode of valuation currently quite widespread, which leads to the...

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Limitation of employees noise exposure

Limiting employees exposure to noise is a regulatory obligation, resulting from european Directive 2003/10/EC:

  • for the daily noise exposure level (LEX, 8h): 80 dB (A) and 85 dB (A) are the values ​​(respectively: lower and upper) triggering the action; 87 dB (A) is the exposure limit value
  • with regard to the peak sound pressure (ρpeak): 112 Pa i.e. 135 dB (C) and 140 Pa i.e. 137 dB (C) are the values ​​(respectively: lower and upper) triggering the action; 200 Pa i.e. 140 dB (C) is the...

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Noise and quality of life at work (ITS at Preventica 2018 Lyon-France)

Noise is undoubtedly one of the nuisances likely to affect the quality of life at work.

In some cases, noise is emitted by machines, production lines (in many sectors of activity); in other cases the noise emissions are due to related equipment e.g. dedusting network, chips suction mouths (especially in the paper and cardboard processing industry), ventilation systems.

Regardless of the sources of noise involved, there is a need to ensure that the levels of daily noise exposure of workers...

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