Division BAT 47: In order to reduce the amount of paraformaldehyde-containing waste being sent for disposal, BAT is to use one or a combination of the techniques given below.
United Kingdom
| Technique | Description | Applicability | |
|---|---|---|---|
| a. | Minimisation of paraformaldehyde generation | The formation of paraformaldehyde is minimised by improved heating, insulation and flow circulation | Generally applicable |
| b. | Material recovery | Paraformaldehyde is recovered by dissolution in hot water where it undergoes hydrolysis and depolymerisation to give a formaldehyde solution, or is reused directly in other processes | Not applicable when the recovered paraformaldehyde cannot be used due to its contamination |
| c. | Use of residues as a fuel | Paraformaldehyde is recovered and used as a fuel | Only applicable when technique b. cannot be applied |