WordReference Random House Unabridged Dictionary of American English © 2026
ac′tivated sludge′, 
  1. sludge (def. 8).

Collins Concise English Dictionary © HarperCollins Publishers::
activated sludge n
  1. a mass of aerated precipitated sewage added to untreated sewage to bring about purification by hastening decomposition by microorganisms
'activated sludge' also found in these entries (note: many are not synonyms or translations):
sludge

Forum discussions with the word(s) "activated sludge" in the title:


Look up "activated sludge" at Merriam-Webster
Look up "activated sludge" at dictionary.com
  • Go to Preferences page and choose from different actions for taps or mouse clicks.

In other languages: Spanish | French | Italian | Portuguese | Romanian | German | Dutch | Swedish | Russian | Polish | Czech | Greek | Turkish | Chinese | Japanese | Korean | Arabic

Advertisements
Advertisements
Report an inappropriate ad.
WordReference.com
WORD OF THE DAY
GET THE DAILY EMAIL!

Become a WordReference Supporter to view the site ad-free.