| |||
| purified water | |||
| treated water | |||
| purified sewage; purified wastewater | |||
|
eau traitee : 18 phrases in 9 subjects |
| Chemistry | 2 |
| Construction | 1 |
| Environment | 6 |
| Hydrology | 1 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 1 |
| Pulp and paper industry | 1 |
| Water resources | 2 |