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  1. Dictionary
    sludge
    /slʌdʒ/

    noun

    • 1. thick, soft, wet mud or a similar viscous mixture of liquid and solid components, especially the product of an industrial or refining process: "the dumping of sewage sludge"
    • 2. an unattractive muddy shade of brown or green: "a sludge green"

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  2. www.vedantu.com › question-answer › sludge-explainWhat is sludge? Explain how it is treated. - Vedantu

    Jul 6, 2024 · The semi-solid, solid, or slurry residual content formed as a by-product of wastewater treatment operations is sewage sludge. Using a skimmer, sludge is collected and then transported to a tank where it is decomposed for biogas processing by anaerobic bacteria.

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  4. en.wikipedia.org › wiki › Sewage_treatmentSewage treatment - Wikipedia

    3 days ago · Sludge treatment is focused on reducing sludge weight and volume to reduce transportation and disposal costs, and on reducing potential health risks of disposal options.

  5. acsess.onlinelibrary.wiley.com › doi › 10Surveillance of PFAS in sludge and biosolids at 12 water ...

    2 days ago · Primary sludge is captured by gravity, with or without coagulants or polymers, and has a higher energy content than WAS because microorganisms consume the energy content of sludge during secondary biological treatment (Weemaes & Verstraete, 1998 ).

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  7. www.vedantu.com › question-answer › sludge-explainWhat is sludge? Explain how it is treated. - Vedantu

    Jun 27, 2024 · Sludge is the settled suspended particles in a primary tank which gets settled at the bottom. Sludge has a high amount of organic matter and moisture content. As it is highly organic, it has to be treated well before disposal.

  8. www.epa.gov › anaerobic-digestion › basicBasic Information about Anaerobic Digestion | US EPA

    Jun 26, 2024 · Wastewater solids (sewage sludge). All anaerobic digestion systems adhere to the same basic principles whether the feedstock is food waste, animal manures or wastewater solids. The systems may have some differences in design but the process is basically the same. Learn more about how anaerobic digestion works. What is made during the AD process?

  9. www.britannica.com › technology › solid-wasteSolid-waste management - Composting, Recycling, Reuse

    Jun 19, 2024 · Composting offers a method of processing and recycling both garbage and sewage sludge in one operation. As more stringent environmental rules and siting constraints limit the use of solid-waste incineration and landfill options, the application of composting is likely to increase.

  10. www.britannica.com › technology › solid-waste-managementSolid-waste management | Definition, Methods, Importance ...

    Jun 19, 2024 · Solid-waste management, the collecting, treating, and disposing of solid material that is discarded because it has served its purpose or is no longer useful. Improper disposal of municipal solid waste can create unsanitary conditions, pollution, and outbreaks of disease.