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 …

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

Dec 4, 2023 · Because of its pathogen content and its unstable, decomposable nature, raw sewage sludge is a potential health and environmental hazard; however, several treatment processes now …

Sep 26, 2025 · When domestic sewage is transported and conveyed to a wastewater treatment plant (WWTP), it is treated to separate liquids from the solids, which produces a semi-solid, nutrient-rich …

We seemed to spend the last mile of the walk knee-deep in sludge. The dirty water left a layer of sludge in the bottom of the pail. Increased erosion also reduces the life of reservoirs, makes additional water …

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

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.

Sludge is a by-product of the wastewater treatment process, consisting of organic and inorganic solids suspended in water. Sludge treatment entails various processes and techniques depending on the …

Activated Sludge refers to the process of “farming” microorganisms by providing food and air. The microorganisms treat the wastewater through biological and chemical processes.