Foundry emissions

Emissions from foundries are generated by two main processes – smelting and casting:

  • The potential for smelting to generate odours depends on the type of metal used, and so varies widely from site to site. The processing of recycled metals tends to carry the highest risk.
  • The addition of the molten metal to sand cores is the more common source of odour. During the casting process, odours are primarily associated with the release of amines and aromatic odorants. Similar odours are released during the subsequent recycling of used cores.
Metal casting is a common source of odour
Metal casting is a common source of odour

How can we help?

Odour emissions from foundries can be controlled to some extent through adoption of good practice and use of resins with low phenol content. Odournet is ideally placed to offer advice in both these areas. However, where foundries are located close to sensitive receptors such as residential housing, maintaining effective odour control will generally require the use of some form of enclosure and odour treatment system, such as a chemical scrubber.

With such a wide range of potential odour control solutions, we pride ourselves on helping customers select the right one for their needs.

Need to know more?

When measuring odour from foundries to assess odour impact or design odour abatement plans, the odour samples should be analysed as soon as possible, since they tend to be unstable and can change substantially in odour concentration and character during storage. Odournet offers complete peace of mind, as we guarantee timely analysis. Plus, our mobile labs can carry out speedy analysis on-site when required.

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