MODEL RELEASED. Effluent treatment pond. An efflu- ent water treatment pond at a paper mill. Waste water from paper mills is run through a system of ponds that remove toxic pollutants from the water by sedimentation,filtration and bacterial fermen- tation. After treatment the water is clean enough to be run out into local rivers without harming wildlife | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Tompkinson, Geoff |
Taille de l’image : | 5168 px × 3435 px |
Model Release : | Disponible |
Property Release : | Non requis |
Restrictions : | - |