Generic BAT for the foundry industry

Some BAT elements are generic and apply for all foundries, regardless of the processes they apply and the type of products they produce. These concern material flows, finishing of castings, noise, waste water, environmental management and decommissioning. 

The foundry process involves the use, consumption, combination and mixing of various material types. BAT requires the minimisation of raw materials consumption and the furthering of residue recovery and recycling. Therefore, BAT is to optimise the management and control of internal flows. 

For abrasive cutting, shot blasting and fettling, BAT is to collect and treat the finishing off-gas using a wet or dry system. The BAT associated emission level for dust is 5 - 20 mg/Nm The techniques for off-gas collection and exhaust air cleaning are discussed in Section 4.5.10.1 and 4.5.10.2. 

BAT is to minimise fugitive emissions arising from various non-contained sources in the process chain, by using a combination of the following measures. The emissions mainly involve losses from transfer and storage operations and spills, and are discussed in Section 4.5.1.1. 

These techniques are further specified in Section 4.5.1.1. Additional storage techniques are detailed in the Storage BREF. 

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