Wastewater being treated in chlorine contact chamber at sewage treatment plant in Southern California. Chlorine kills bacteria and other organisms in the water as it flows through the serpentine configuration of the tank. 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 |
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Eigentums-Rechte: | nicht erforderlich |
Länge: | 6 Sekunden |
Seitenverhältnis: | 4:3 |
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