Waste water treatment. Waste water in the clarification stage of treatment at a sewage works. During this stage,aerated effluent traverses slowly across the perimeter of large tank. The bacterial sludge contained in the effluent settles to the bottom of the tank and is returned to the aeration stage of treatment | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 5329 px × 3544 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |