Activated sludge tank at a wastewater treatment plant.
Size: 3959px × 2529px
Photo credit: © Vitantonio Caporusso / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: -, activated, aerated, bacterium, biology, biomass, bubble, cleaning, concrete, factory, industry, machine, micro, organism, pipe, plant, purity, rust, rusty, sewage, slimy, sludge, soap, steel, storage, sud, tank, treatment, tube, unhygienic, valve, wastewater, water