ANNEXBAT CONCLUSIONS FOR THE NON-FERROUS METALS INDUSTRIES
1.2.BAT CONCLUSIONS FOR COPPER PRODUCTION
1.2.3.Air emissions
1.2.3.1.Diffuse emissions
BAT 25.
In order to prevent or reduce diffuse emissions from pretreatment (such as blending, drying, mixing, homogenisation, screening and pelletisation) of primary and secondary materials, BAT is to use one or a combination of the techniques given below.
Technique | Applicability | |
|---|---|---|
a | Use enclosed conveyers or pneumatic transfer systems for dusty materials | Generally applicable |
b | Carry out activities with dusty materials such as mixing in an enclosed building | For existing plants, application may be difficult due to the space requirements |
c | Use dust suppression systems such as water cannons or water sprinklers | Not applicable for mixing operations carried out indoors. Not applicable for processes that require dry materials. The application is also limited in regions with water shortages or with very low temperatures |
d | Use enclosed equipment for operations with dusty material (such as drying, mixing, milling, air separation and pelletisation) with an air extraction system connected to an abatement system | Generally applicable |
e | Use an extraction system for dusty and gaseous emissions, such as a hood in combination with a dust and gas abatement system | Generally applicable |