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. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library / Matulavich, Peter |
Model Release : | Non requis |
Property release : | Non requis |
Durée : | 20 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |