The meaning of SLUDGE is mud, mire; especially : a muddy deposit (as on a riverbed) : ooze. How to use sludge in a sentence.

Sludge (possibly from Middle English slutch 'mud, mire', or some dialect related to slush) [1] is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, …

Nov 21, 2025 · Wastewater treatment - Sludge, Disposal, Treatment: The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or …

Sludge is produced during the clarification and filtration process in the water treatment system. There are frequent puddles of coal sludge, and the dust irritates eyes and throats. Only big businesses, not …

Definition of sludge noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Sludge is thick mud, sewage, or industrial waste. More than a million gallons of sludge has seeped into the water.

Dec 23, 2025 · sludge (third-person singular simple present sludges, present participle sludging, simple past and past participle sludged) (intransitive, informal) To slump or slouch.

SLUDGE definition: mud, mire, or ooze; slush. See examples of sludge used in a sentence.

Sludge is the solid material in wastewater, either from wastewater treatment plants or on-site septic tanks. Biosolids is sanitary sludge that has been treated to ensure that it can be applied to land as a …

sludge (slʌdʒ) n. 1. mud, mire, or ooze; slush. 2. a deposit of ooze at the bottom of a body of water. 3. any of various mudlike deposits or mixtures.