The excrements of the children are neither disposed of in waste water nor in household waste, but returned directly to the nutrient cycle as fertile soil.
MAIN GOAL OF THE PROJECT
Establish a local nutrient cycle, with the following elements of Circular Economy...
Reusable overpants with a waterproof inner pouch that can be replaced if necessary. A disposable insert is placed in the inner pouch, which do not contain plastics or other non-compostable components.
The project "Nachwachsende Windel" (Regenerative Diapers) is based on the production of "black humus" (Terra Preta), a product of indigenous soil management hundreds of years ago near the Amazon: the soil is still fertile today, with rich humus and a layer thickness of more than 1 metre (usual humus layer thickness in Europe up to 30 cm).
This rich humus also requires less irrigation and fertilization (higher water retention due to the vegetable charcoal), which leads to the preservation of organic nutrients in the soil (withstands leaching). .