Why Sludge Digestion Is Important?

Sludge digestion is a biological process in which organic solids are decomposed into stable substances. Digestion reduces the total mass of solids, destroys pathogens, and makes it easier to dewater or dry the sludge.

What is the significance of a sludge?

Sludge is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems. ... In the activated sludge process for wastewater treatment, the terms "waste activated sludge" and "return activated sludge" are used.

What is an advantage of sludge digestion over activated sludge?

3.2 Aerobic biological treatment

Aerobic sludge digestion has several advantages over anaerobic digestion, such as an easier maintenance, a lower emission of malodorous compounds, and shorter digestion times.