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| Wastewater (blackwater from
toilets, graywater from sinks, showers,
kitchen and laundry) goes to a water-tight
septic tank with large enough volume to
allow the wastewater to settle out solids,
which are then digested by bacteria in the
septic tank. A final filter prevents passage
of solids; only nutrient-rich water leaves
the septic tank. Over time, solids will
build up in the septic tank and must be
pumped out to be composted or removed by
tank trucks. |
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| The effluent from the septic
tank goes to a water-tight Wastewater Garden®,
which is filled with gravel and has one
or more compartments depending on the size
of system. In the Wastewater Garden®
green plants and associated microbes, use
and purify the wastewater of its nutrients
and organic compounds. The design of the
WWG keeps the wastewater below the surface
of dry gravel, so there is no exposure,
smell nor danger of accidental contact with
wastewater. |
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| Discharge water from the
Wastewater Garden® is sent to subsoil
irrigation trenches or to a leachdrain where
the action of plants and soil further purifies
the water and uses any remaining nutrients.
Graywater can directly replace fresh water
for irrigation. By separating your blackwater
(toilets) and graywater (water used for
washing / cleaning) you can decreasing the
wastewater flow through Wastewater Gardens®.
This will increase effectiveness of Wastewater
Gardens® and minimize the size of Wastewater
Gardens®, thereby lowering costs. |
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