Wastewater enters sewage treatment plant in Southern California through one of many sewer pipes. Archimedes screw pump is used to lift the water to a higher level to begin treatment process. Sewage treatment is a multi-stage operation that includes physical, chemical and biological processes to remove contaminates from water. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Matulavich, Peter |
Model Release : | Le droit n'est pas encore disponible. Merci de nous contacter avant utilisation. |
Property release : | Non requis |
Durée : | 9 Secondes |
Aspect ratio : | 4/3 |
Restrictions : | - |