Aeration of wasterwater producing a cover of bubbles and foam coated in brown-black sludge

---

Size: 5616px × 3744px
Photo credit: © Matthew Corley / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: biology, black, bubble, clean, dirty, ecology, effluent, engineering, environment, environmental, factory, foam, gross, industrial, industry, plant, pollution, purification, purified, purity, recycled, recycling, sewage, sewerage, slime, sludge, storage, tank, treatment, waste, wastewater, water