Sewage treatment. Sewage treatment plant buildings in which sewage sludge is thickened by treating it with bacteria in oxygen-deficient (anaerobic) conditions. The sewage sludge is partially digested by the bacteria in closed chambers. During this process the bacteria produce high- quality methane gas which may be collected and used as a fuel. Photographed in Bavaria,Germany | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Maximilian Stock |
Bildgröße: | 3569 px × 4745 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: |
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