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  2. Grease trap - Wikipedia

    en.wikipedia.org/wiki/Grease_trap

    A grease trap (also known as grease interceptor, grease recovery device, grease capsule and grease converter) is a plumbing device (a type of trap) designed to intercept most greases and solids before they enter a wastewater disposal system. Common wastewater contains small amounts of oils which enter into septic tanks and treatment facilities ...

  3. Environmental impact of concrete - Wikipedia

    en.wikipedia.org/wiki/Environmental_impact_of...

    Concrete is used to create hard surfaces which contribute to surface runoff that may cause soil erosion, water pollution and flooding. Conversely, concrete is one of the most powerful tools for proper flood control, by means of damming, diversion, and deflection of flood waters, mud flows, and the like.

  4. Septic tank - Wikipedia

    en.wikipedia.org/wiki/Septic_tank

    Groundwater pollution, water pollution e.g. during floods [ 1 ] A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater (sewage) flows for basic sewage treatment. [ 2 ] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate ...

  5. ‘Rigging the system.’ Is Tacoma’s grease-trap policy killing ...

    www.aol.com/rigging-system-tacoma-grease-trap...

    He decided the restaurant’s grease trap, which they also routinely cleaned, was insufficient and that he would issue a $5,000 fine every day until they installed a big, in-ground interceptor.

  6. Tree well - Wikipedia

    en.wikipedia.org/wiki/Tree_well

    A cypress tree shelters the ground around it, creating a tree well. A tree well, also known as a spruce trap, is the space around a tree under its branches that does not get the same amount of snow as the surrounding open space. This creates a void or area of loose snow below the branches and around the trunk that is dangerous to any hikers ...

  7. Combined sewer - Wikipedia

    en.wikipedia.org/wiki/Combined_sewer

    Combined sewer. A combined sewer system. During dry weather (and small storms), all flows are handled by the publicly owned treatment works (POTW). During large storms, the relief structure allows some of the combined stormwater and sewage to be discharged untreated to an adjacent water body. A combined sewer is a type of gravity sewer with a ...

  8. Tacoma’s grease-trap policy is like using a sledgehammer to ...

    www.aol.com/news/tacoma-grease-trap-policy-using...

    Do better. Tacoma’s grease-trap policy is like using a sledgehammer to swat a mosquito. Do better. The News Tribune Editorial Board. August 22, 2024 at 10:57 AM. Tony Overman/toverman ...

  9. Fatberg - Wikipedia

    en.wikipedia.org/wiki/Fatberg

    Fatberg. A fatberg is a rock-like mass of waste matter in a sewer system formed by the combination of flushed non- biodegradable solids (such as wet wipes) with fat, oil, and grease (FOG) deposits. [1][2][3] The handling of FOG waste and the buildup of its deposits are a long-standing problem in waste management, with "fatberg" a more recent ...