Larsen, T. A., Peters, I., Alder, A., Eggen, R., Maurer, M., & Muncke, J. (2001). Re-engineering the toilet for sustainable wastewater management. Could one answer be a new toilet that separates urine from wastewater streams? Environmental Science and Technology, 35(9), 192A-197A. https://doi.org/10.1021/es012328d