Long-Term Composting Toilets with a purpose to return those nutrients to agriculture is actually the only technology we can call SUSTAINABLE!
The flush toilet or water closet (WC) with sewers to "get rid of the sewage" is actually the least sustainable technology there is when it comes to deal with our human excreta.
-WC pollutes yours and your neighbors drinking water
-WC spreads the nutrients that over-fertilize our lakes, river, estuaries and oceans
-WC uses about 1/3 of your precious drinking water
-WC spreads virus, bacteria, parasites and lately concerns for concentrated hyper-infectious human prions through waste water and sludge
-WC can also clog, freeze, break, flood and leak water as well as break mechanically.
...in other words, as necessary as the yearly flu
The final product from the long-term composting is an odorfree, safe to use liquid, which can be used as a fertilizer. The solids remains in the processing tanks as it shrinks and can remain in the tank for several decades. This is how human pathogens are isolated and given a chance to degrade over a long period of time. New threats to our health seems to continueously appear, come to our attention and they are best dealt with stayin isolation whilst subjected to decay. The longer the retention time the better.
