Sewage treatment plant oxidation ditch, closeup of photo
Size: 3168px × 4752px
Photo credit: © YongXin Zhang / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: buildings, circulation, ditch, electric, environment, facilities, factory, gray, green, harmless, industry, light, metal, oxidation, peeling, plant, pollution-free, processing, railings, resources, sewage, toxic, trace, treatment, turbidity, walls