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  2. Dry toilet - Wikipedia

    en.wikipedia.org/wiki/Dry_Toilet

    A dry toilet (or non-flush toilet, no flush toilet or toilet without a flush) is a toilet which, unlike a flush toilet, does not use flush water. [1] Dry toilets do not use water to move excreta along or block odors. [2] They do not produce sewage, and are not connected to a sewer system or septic tank. Instead, excreta falls through a drop ...

  3. Rotating biological contactor - Wikipedia

    en.wikipedia.org/wiki/Rotating_biological_contactor

    Schematic diagram of a typical rotating biological contactor (RBC). The treated effluent clarifier/settler is not included in the diagram. A rotating biological contactor or RBC is a biological fixed-film treatment process used in the secondary treatment of wastewater following primary treatment.

  4. Drain-waste-vent system - Wikipedia

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

    In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.

  5. Pit latrine - Wikipedia

    en.wikipedia.org/wiki/Pit_latrine

    Whilst a dry toilet can be with or without urine diversion, a pit latrine is almost always without urine diversion. The key characteristic of a pit latrine is the use of a pit, which infiltrates liquids into the ground and acts as a device for storage and very limited treatment. [7] Pit latrines are sometimes also referred to as "dry toilets ...

  6. Composting toilet - Wikipedia

    en.wikipedia.org/wiki/Composting_toilet

    This is the pedestal for a split-system composting toilet where collection/treatment chambers are located below the bathroom floor. Inexpensive do-it-yourself compost toilet at Dial House, Essex, England, utilizing an old desk as the toilet unit. Public composting toilet at a park in Helsinki, Finland

  7. Flush toilet - Wikipedia

    en.wikipedia.org/wiki/Flush_toilet

    A flush toilet (also known as a flushing toilet, water closet (WC); see also toilet names) is a toilet that disposes of human waste (i.e., urine and feces) by collecting it in a bowl and then using the force of water to channel it ("flush" it) through a drainpipe to another location for treatment, either nearby or at a communal facility.