Human feces and urine contain nutrients (phosphorus and nitrogen) which plants can utilize if appropriately applied, but they also contain pathogenic microorganisms and, as your comment implied, most people avoid anything to do with handling human waste - resulting in system neglect. In all the cases I have known where progressive-thinking individuals purchased composting toilets believing they would be more environmentally friendly, they were shortly removed and added to solids waste disposal systems.
Published by Troy Vassos, Senior Environmental Engineer
Human feces and urine contain nutrients (phosphorus and nitrogen) which plants can utilize if appropriately applied, but they also contain pathogenic microorganisms and, as your comment implied, most people avoid anything to do with handling human waste - resulting in system neglect. In all the cases I have known where progressive-thinking individuals purchased composting toilets believing they would be more environmentally friendly, they were shortly removed and added to solids waste disposal systems.