The filtering squatting toilet, designed by Philips as part of their Microbial Home system, separates organic waste and channels it to the methane digester located in the kitchen island which uses it to generate biogas to power various home functions, such as the stove range and lighting.
The effluent passes through a series of charcoal, sand and ceramic filters as well as a range of plants for cleaning. The flush mechanism is based on the one-liter flush toilet developed by India’s Sulabh Foundation, which requires zero energy and saves water. Rather than polluting, it makes it possible to exploit the energy value of biological waste by converting it into usable energy.
While the idea of a squatting toilet might raise scepticism, there are several health benefits associated with this type of toilet. It favors a more natural position and also minimizes the need for toilet paper, which can have harmful effects on health. A handrail is also present for support during use.
The design considers waste an integral part of the domestic eco-system and hopes to raise awareness about water conservation and the energy potential of biological waste.