Stuck on a problem? Get great tutoring at an affordable price with Chegg. Click here to join and get your 1st 30 minutes Free!

Activated sludge process

From Biology-Online Dictionary
Jump to: navigation, search

Activated sludge process

(Science: procedure) a method of treating sewage and wastewater through microbial oxidation. Sewage previously treated in settling tanks is aerated to encourage the growth of nonpathogenic aerobic microorganisms (bacteria, yeasts, moulds and protozoans) which break the organic matter down into carbon dioxide, water and simple salts.

After this activated sludge is produced, the wastewater undergoes further processing through anaerobic digestion, filtering and chlorination.