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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 …

  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

    Oct 13, 2025 · The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or slurry residual material that is produced as …

  4. Sludge

    5 days ago · Lobbyists in Trump’s fundraising circle are surging in a record-breaking year for influence spending, as companies like Pfizer cut deals with the White House. Comcast, CVS, …

  5. SLUDGE | English meaning - Cambridge Dictionary

    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 …

  6. What Is Sludge? Understanding the Basics

    Apr 3, 2025 · In simplest terms, sludge is a thick, semi-solid by-product that forms when solids separate from liquids during various processes. While the concept sounds straightforward, …

  7. SLUDGE definition and meaning | Collins English Dictionary

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

  8. 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.

  9. sludge noun - Definition, pictures, pronunciation and usage notes ...

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

  10. Sludge is used as fertilizer across Wisconsin. How much is tainted …

    4 days ago · Sludge and septage are spread across around half a million acres in Wisconsin, but most of it has never been tested for PFAS.