Division 1.8 Noise

United Kingdom

BAT 37. In order to prevent or, where that is not practicable, to reduce noise emissions, BAT is to use one or a combination of the techniques given below.

Technique		Description	Applicability
(a)	Appropriate location of equipment and buildings	Noise levels can be reduced by increasing the distance between the emitter and the receiver and by using buildings as noise screens.	In the case of existing plants, the relocation of equipment may be restricted by a lack of space or by excessive costs.
(b)	Operational measures	These include: improved inspection and maintenance of equipment; closing of doors and windows of enclosed areas, if possible; operation of equipment by experienced staff; avoidance of noisy activities at night, if possible; provisions for noise control during maintenance activities.	Generally applicable.
(c)	Low-noise equipment	This includes low-noise compressors, pumps and fans.	Generally applicable when existing equipment is replaced or new equipment is installed.
(d)	Noise attenuation	Noise propagation can be reduced by inserting obstacles between the emitter and the receiver. Appropriate obstacles include protection walls, embankments and buildings.	In the case of existing plants, the insertion of obstacles may be restricted by a lack of space.
(e)	Noise-control equipment/ infrastructure	This includes: noise-reducers; equipment insulation; enclosure of noisy equipment; soundproofing of buildings.	In the case of existing plants, the applicability may be limited by a lack of space.