Sewage treatment facility. First phase: separating solid waste and sludge from the liquid. The solid waste is then removed to a dumping ground. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Photostock-Israel |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |