IPC Subgroup
C02F 3/32 characterised by the animals or plants used, e.g. algae
Introduced: January 1980
Last revised: January 2023
Full Title
Biological treatment of water, waste water, or sewage > characterised by the animals or plants used, e.g. algae
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- Subclass:
- TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE