Division BAT 7
United Kingdom
In order to prevent diffuse emissions from the storage of raw materials, BAT is to use a combination of the techniques given below.
| Technique | |
|---|---|
| a | Enclosed buildings or silos/bins for storing dust-forming materials such as concentrates, fluxes and fine materials |
| b | Covered storage of non-dust-forming materials such as concentrates, fluxes, solid fuels, bulk materials and coke and secondary materials that contain water-soluble organic compounds |
| c | Sealed packaging of dust-forming materials or secondary materials that contain water-soluble organic compounds |
| d | Covered bays for storing material which has been pelletised or agglomerated |
| e | Use water sprays and fog sprays with or without additives such as latex for dust-forming materials |
| f | Dust/gas extraction devices placed at the transfer and tipping points for dust-forming materials |
| g | Certified pressure vessels for storing chlorine gas or mixtures that contain chlorine |
| h | Tank construction materials that are resistant to the contained materials |
| i | Reliable leak detection systems and display of tank’s level, with an alarm to prevent overfills |
| j | Store reactive materials in double-walled tanks or tanks placed in chemical-resistant bunds of the same capacity and use a storage area that is impermeable and resistant to the material stored |
| k | Design storage areas so that
|
| l | Use inert gas blanketing for the storage of materials that react with air |
| m | Collect and treat emissions from storage with an abatement system designed to treat the compounds stored. Collect and treat before discharge any water that washes dust away. |
| n | Regular cleaning of the storage area and, when needed, moistening with water |
| o | Place the longitudinal axis of the heap parallel to the prevailing wind direction in the case of outdoor storage |
| p | Protective planting, windbreak fences or upwind mounts to lower the wind velocity in the case of outdoor storage |
| q | One heap instead of several where feasible in the case of outdoor storage |
| r | Use oil and solid interceptors for the drainage of open outdoor storage areas. Use of concreted areas that have kerbs or other containment devices for the storage of material that can release oil, such as swarf |