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 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Tompkinson, Geoff |
Bildgröße: | 5168 px × 3435 px |
Modell-Rechte: | vorhanden |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |