Sludge Digestion Tanks | Sewage Treatment | Sanitary Engineering

In modern sewage works, the sludge digestion tanks are circular in plan with flat or hopper-shaped bottom. These are usually covered from the top to retain the heat and odours and for collecting the sludge gas. If the sludge contains some grit the bottom is given a slope of 1 in 2 (vertical to horizontal). Sufficient space is provided in [...]