Last week, Glenn Nelson from Advanced Compositing Systems (ACS), made the trek from Whitefish, Montana to Bend, Oregon to deliver and install our blackwater composter. Earning the LBC Water Petal requires that all of the water on the Desert Rain property is collected as well as treated for use again and again. Having a system of composting toilets means that all of the backwater onsite will be treated, making it safe to reuse for landscape irrigation. (see graywater and blackwater permitting)
The Phoenix Composting Toilet
How does the Composter work?
At first, the composting chamber is “charged” with wood shavings, peat moss, and water to provide an environment that will be conducive to biological decomposition. Waste, brought from the residences toilets to the composter via a vacuum system, will gradually build up in the tank and decomposes through the action of aerobic bacteria. The Desert Rain system will include vermicomposting – adding worms to aid the process. Within in the composting unit, there is shaft with tines that is rotated to mix the decomposing waste and ensuring adequate oxygenation.
Closing the Loop
In the immediate future, the traditional water toilets will be replaced with vacuum toilets. We’re looking forward to seeing the first installed in the ADU so we can conduct some initial testing on the system. Then, it’ll be all systems go!