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2. Imhoff tank - Wikipedia

   en.wikipedia.org/wiki/Imhoff_tank

   The lower chamber requires separate biogas vents and pipes for the removal of digested sludge, typically after 6–9 months of digestion. [2] The Imhoff tank is in effect a two-story septic tank [3] and retains the septic tank's simplicity while eliminating many of its drawbacks, which largely result from the mixing of fresh sewage and septic ...

3. Aerobic treatment system - Wikipedia

   en.wikipedia.org/wiki/Aerobic_treatment_system

   The aeration stage and the disinfecting stage are the primary differences from a traditional septic system; in fact, an aerobic treatment system can be used as a secondary treatment for septic tank effluent. [1] These stages increase the initial cost of the aerobic system, and also the maintenance requirements over the passive septic system.

4. EN 12566 - Wikipedia

   en.wikipedia.org/wiki/EN_12566

   EN 12566-4: "Part 4: Septic tanks assembled in situ from prefabricated kits" is an execution standard specifying pipe sizes, loads, watertightness, marking, and evaluation of conformity for septic tanks assembled in situ from prefabricated kits and ancillary equipment;

5. 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 ]

6. Fecal sludge management - Wikipedia

   en.wikipedia.org/wiki/Fecal_sludge_management

   Fecal sludge is defined very broadly as what accumulates in onsite sanitation technologies and specifically is not transported through a sewer.It is composed of human excreta, but also anything else that may go into an onsite containment technology, such as flushwater, cleansing materials and menstrual hygiene products, grey water (i.e. bathing or kitchen water, including fats, oils and grease ...

7. Effluent sewer - Wikipedia

   en.wikipedia.org/wiki/Effluent_sewer

   Effluent sewer systems, also called septic tank effluent gravity (STEG), solids-free sewer (SFS), or septic tank effluent drainage (STED) systems, have septic tanks that collect sewage from residences and businesses, and the liquid fraction of sewage that comes out of the tank is conveyed to a downstream receiving body such as either a ...