But why do I write about this? NTU from Singapore created a new No-Mix Vacuum Toilet.
The Romans produced ammonia from urine and they were cleaning their clothes with it.
Now check what NTU tells about the system:
How it works
The No-Mix Vacuum Toilet will divert the liquid waste to a processing facility where components used for fertilisers such as nitrogen, phosphorous and potassium can be recovered.
At the same time, the solid waste will be sent to a bioreactor where it will be digested to release bio-gas which contains methane. Methane is odourless and can be used to replace natural gas used in stoves for cooking. Methane can also be converted to electricity if used to fuel power plants or fuel cells.
‘Grey water’ (used water from the laundry, shower and kitchen sink) can be released back into the drainage systems without further need for complex waste water treatment, while leftover food wastes can be sent either to the bioreactors or turned into compost and mixed with soil, resulting in a complete recovery of resources.
Assisting Assoc Prof Wang in the project are four other NTU researchers – Asst Prof Chang Wei-Chung, Dr Chen Chia-Lung, Dr Apostolos Giannis and Dr Rajinikanth Rajagopal. This next-generation toilet and resource recovery system took the team one and a half years to develop and will be showcased to the industry at the upcoming WasteMET Asia 2012, held from the 1st to 4th July this year at Marina Bay Sands’ Sands Expo and Convention Center.
Source: Nanyang Technological University (NTU)