The biological toilet system Aquatron is a composting toilet utilising ordinary Water Closets. All Aquatron Systems exploit the patented Aquatron Separator (see sketch) which separates solid waste and paper from the liquid. The separated components are treated in different ways optimal for each kind of waste. Aquatron systems operate by using just the momentum of the flushing water, centrifugal force and gravity. Therefore, neither chemicals nor moving parts are needed in the separation and composting processes.

After separation, the liquid proceeds to the Ultra Violet unit where it is exposed to UltraViolet light which kills bacteria and viruses. In Sweden the liquid then may be treated – in accordance with the Type Approval Certificate issued by the Swedish authority, SITAC – as GREY WATER. This means that one may infiltrate the liquid toilet waste together with the wastewater from the kitchen, shower, bath and washing machine into the ground.

After separation, the solid waste is composted by bacteria and, if desired, by worms.

Hence, Aquatron Systems combine the comfort and hygiene of an ordinary WC system with the ecological and environmental characteristics of a bio-degrading toilet system.