Division 1.10.8 Emissions from cutting, grinding, polishing operations
United Kingdom
| Technique | Description |
|---|---|
| Performing dusty operations (e.g. cutting, grinding, polishing) under liquid | Water is generally used as a coolant for cutting, grinding and polishing operations and for preventing dust emissions. An extraction system equipped with a mist eliminator may be necessary |
| Applying a bag filter system | The use of bag filters is suitable for the reduction of both dust and metal emissions since metals from downstream processes are largely contained in particulate form |
| Minimising the losses of polishing product by ensuring a good sealing of the application system | Acid polishing is performed by immersion of the glass articles in a polishing bath of hydrofluoric and sulphuric acids. The release of fumes may be minimised by a good design and maintenance of the application system in order to minimise losses |
| Applying a secondary technique, e.g. wet scrubbing | Wet scrubbing with water is used for the treatment of waste gases, due to the acidic nature of the emissions and the high solubility of the gaseous pollutants to be removed |