EU demonstration project for separate discharge and treatment of urine, faeces and greywater - Part I: Results

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Abstract

The main aim of this EU demonstration project was to test two new sanitation concepts to determine if these concepts are more sustainable, compared with the conventional sanitation system, particularly with regard to nutrient recycling. Two different sanitation concepts were tested. One concept comprised the use of gravity separation toilets, the other used vacuum separation toilets. Results from a lifecycle-assessment investigation show that the new sanitation concepts are more sustainable. A cost analysis for an existing residential area did not prove lower costs for the new sanitation concepts in this special case. The experience from this demonstration project shows that prior to a widespread use of the new sanitation concepts, several improvements have to be made. One important issue is the improvement of separation toilets. Since nutrient recycling, water saving and reuse as well energy reduction become more and more important, further research should be undertaken in this field. © IWA Publishing 2007.

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Peter-Fröhlich, A., Pawlowski, L., Bonhomme, A., & Oldenburg, M. (2007). EU demonstration project for separate discharge and treatment of urine, faeces and greywater - Part I: Results. In Water Science and Technology (Vol. 56, pp. 239–249). https://doi.org/10.2166/wst.2007.577

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