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  2. Aerobic treatment system - Wikipedia

    en.wikipedia.org/wiki/Aerobic_treatment_system

    These stages increase the initial cost of the aerobic system, and also the maintenance requirements over the passive septic system. Unlike many other biofilters, aerobic treatment systems require a constant supply of electricity to drive the air pump increasing overall system costs. The disinfectant tablets must be periodically replaced, as ...

  3. Septic tank - Wikipedia

    en.wikipedia.org/wiki/Septic_tank

    A septic tank is an underground chamber made of concrete, fiberglass, or plastic through which domestic wastewater flows for basic sewage treatment. [2] Settling and anaerobic digestion processes reduce solids and organics, but the treatment efficiency is only moderate (referred to as "primary treatment"). [2]

  4. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    Most of the solids are removed by the septic tanks, so the treatment plant can be much smaller than a typical plant. In addition, because of the vast reduction in solid waste, a pumping system, rather than a gravity system, can be used to move the wastewater. The pipes have small diameters, typically 1.5 to 4 inches (4 to 10 cm).

  5. Floods and frozen cars: Photos show aftermath of water main ...

    www.aol.com/floods-frozen-cars-photos-show...

    Large hoses are pumping water at the intersection of Rowan Street and Beard in southwest Detroit on Tuesday, Feb. 18, 2025 after a water main break the day before flooded the neighborhood.

  6. Maceration (sewage) - Wikipedia

    en.wikipedia.org/wiki/Maceration_(sewage)

    Maceration can be achieved by using a chopper pump in the sewage lift station or at the wastewater treatment plant. [1] When the flush is triggered, wastewater flows into the macerator, and when the water level rises, pressure activates the unit, causing the stainless steel blades to rotate at 3,600 rpm, pulverizing the wastewater into fine ...

  7. Tewksbury, Massachusetts - Wikipedia

    en.wikipedia.org/wiki/Tewksbury,_Massachusetts

    Still, Tewksbury, Massachusetts and Tewkesbury, England kept connected through a local committee called the Twinning Committee. [3] Tewksbury also owned a section of Lowell, but not much is known on the topic aside from it being the lands east where the Merrimack River and Concord River meet, referred to by Tewksbury citizens as Belvidere.

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