Aeration tanks at a sewage treatment works. During this stage of sewage treatment air is blown into the effluent to promote the growth of microorganisms which degrade its organic matter content. The microorganisms form a flocculant,or sludge,a proportion of which is removed and treated separately | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Burgess, Dr. Jeremy |
Bildgröße: | 5329 px × 3536 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |