Collection of wastewater in storage chambers or filter bags designed to drain liquids away so that solids can be aerobically composted.

Treatment Level:  Primary
Relative Cost:
  low – medium
Amount of Maintenance Interaction:  high
Beneficial Byproduct:  some – lots (compost)



Operation & Maintenance

Blackwater vs Graywater?

Secondary Treatment Options

  • Liquid (effluent): Drain fields (typical), soak pits, peat filters, treatment wetlands, aquaculture
  • Solids (compost): Worm composting, windrow, aquaculture

Additional Notes:

  • Need to locate in an area with easy access for maintenance and compost removal.
Compost Filter Bag (Rottebehalter)
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