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  1. Sludge - Wikipedia

    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, …

  2. SLUDGE Definition & Meaning - Merriam-Webster

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

  3. Wastewater treatment - Sludge, Disposal, Treatment | Britannica

    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 …

  4. SLUDGE | English meaning - Cambridge Dictionary

    The development of filamentous bacterial structures leads to biological aggregates with low density and poor settling properties, usually called "bulking sludge".

  5. Sludge - definition of sludge by The Free Dictionary

    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.

  6. What Is Sludge? Understanding the Basics of Sludge Treatment ...

    Apr 3, 2025 · In this comprehensive guide, you’ll discover exactly what sludge is, why it matters, and how sludge treatment and sludge management practices ensure it doesn’t become a hazard.

  7. sludge noun - Definition, pictures, pronunciation and usage ...

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