A dry sanitation system that is affordable, sustainable, has longer life expectancy and is more cost effective over its lifetime compared to other systems - this is the Enviro Loo.

How the Enviro Loo works

In the initial phase the system separates liquid and solid waste as it enters the container via the custom designed ceramic toilet bowl. Liquid waste drains to the bottom of the container while solid waste remains on the drying plate.

Both the liquid and the solid waste are exposed to a continuous flow of air that's driven through the unit by the forced aeration ventilation system. The movement of air is assisted by the ventilation extraction unit positioned on top of the outlet vent pipe with air being drawn into the container via the inlet vent pipes and toilet bowl.

As the air moves through the system, it dehydrates the solid waste as it migrates down the sloped, ridged, perforated drying plate.This causes the liquid that has drained to the bottom of the container to evaporate.

At the same time, sunlight absorbed by the black inspection cover increases the ambient temperature within the container. The intense heat, prolonged retention periods and oxygen-rich air drawn in via the toilet bowl and side air inlets, dehydrate and decompose the waste.

At the end of this process the human waste is converted; via the stimulated bacterial and biological activity; into an inoffensive dry stabilised material. At this point it's reduced to roughly 5% of its original volume.

The negative pressure within the container prevents the escape of any odour through the toilet bowl or through the air inlet pipes. The odour is vented into the atmosphere via the wind driven extractor