The LooLoop-Process: The First “Waterless” Flushing Toilet

The environmentally open disposal of fecal contaminated wastewater flows from flushing toilets has caused and is causing a broad variety of qualitative threats and problems. Additionally, the extraction of freshwater for domestic uses from long-term renewable water resources, like ground water, and the following disposal into short-term renewable water resources, like rivers, which flow finally into the oceans within days up to a few months, is intensifying the decrease of continental fresh water resources. With this de-central concept innovation, most of this threats and problems can be solved, and the water demand for flushing of toilets can be reduced down to zero at the same time. Thereby, a closer look at the different types of buildings is essential to developing specific technologies according to the characteristics and amounts of their partial-stream separated wastewater flows. A characterization of different domestic buildings types is presented in this paper and a holistic approach is introduced, of how to reuse fecal contaminated flows, as well as how to reclaim valuables, like biogas, mineral fertilizer and soil-conditioner by simultaneously eliminating all pathogens and hazardous substances, like pharmaceuticals, hormones and multi-resistance plasmids.