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  2. Greywater - Wikipedia

    en.wikipedia.org/wiki/Greywater

    Greywater "towers" are used to treat and reuse greywater in Arba Minch Underground greywater recycling tank Further information: Sewage treatment plant and Reclaimed water The separate treatment of greywater falls under the concept of source separation , which is one principle commonly applied in ecological sanitation approaches.

  3. Brac Systems - Wikipedia

    en.wikipedia.org/wiki/Brac_Systems

    Brac Systems began with the development of the GRS greywater recycling systems in 2005. Later, it manufactured and marketed greywater , rainwater and blackwater recycling systems. Brac's residential greywater recycling systems (RGW Systems) capture greywater from the showers, bathtubs, lavatories and laundry washing machines after which it's ...

  4. Water heat recycling - Wikipedia

    en.wikipedia.org/wiki/Water_heat_recycling

    When recycling water from a bath (100–150 litres) or shower (50–80 litres) the waste water temperature is circa 20–25 °C. An in-house greywater recycling tank holds 150–175 litres allowing for the majority of waste water to be stored. Utilizing a built in copper heat exchange with circulation pump the residual heat is recovered and ...

  5. Dry well - Wikipedia

    en.wikipedia.org/wiki/Dry_well

    A dry well or drywell is an underground structure that disposes of unwanted water, most commonly surface runoff and stormwater, in some cases greywater or water used in a groundwater heat pump. It is a gravity-fed , vertical underground system that can capture surface water from impervious surfaces , then store and gradually infiltrate the ...

  6. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.

  7. Rainwater tank - Wikipedia

    en.wikipedia.org/wiki/Rainwater_tank

    A rainwater tank (sometimes called a rain barrel in North America in reference to smaller tanks, or a water butt in the UK) is a water tank used to collect and store rain water runoff, typically from rooftops via pipes. Rainwater tanks are devices for collecting and maintaining harvested rain.

  8. Hydraloop Systems - Wikipedia

    en.wikipedia.org/wiki/Hydraloop_Systems

    HydraLoop Systems is a company that produces decentralized greywater recycling systems. [1] [2] It was founded in 2015 in the Netherlands. [3] [4] [5] History.

  9. Automated vacuum collection - Wikipedia

    en.wikipedia.org/wiki/Automated_Vacuum_Collection

    An automated vacuum waste collection system, also known as pneumatic refuse collection, or automated vacuum collection (AVAC), transports waste at high speeds through underground pneumatic tubes to a collection station where the waste is compacted and sealed in containers. Full containers are transported away to be emptied.