multilayered underground waterproofing in the construction of a reservoir for the primary treatment of sewage sludge

---

Size: 6000px × 4000px
Photo credit: © Evgeny Haritonov / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: artificial, bed, bottom, construction, digging, earthwork, ecology, environment, environmental, excavation, fabric, film, gravel, industry, layers, material, multilayered, pit, plastic, pond, primary, processing, production, protection, reservoir, safety, sand, sewage, sludge, soil, stone, synthetic, toxic, treatment, underground, waste, wastewater., water, waterproofing