Thickened primary and waste activated solids being pumped into mixing and holding tank at sewage treatment plant in Ohio. Sewage treatment is a multi-stage operation that includes physical, chemical, and biological processes to remove contaminates from water. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Matulavich, Peter |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Länge: | 10 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |