This new waterless toilet can turn human waste into power
Jan 11, 2016 14:10:01 GMT -6
Nugget, Glencairn, and 1 more like this
Post by blackcatmagic on Jan 11, 2016 14:10:01 GMT -6
access to safe and sanitised toilet facilities, so scientists in the UK have designed a new cheap, waterless, and energy-producing toilet, and it's been scheduled for trials in Africa later this year.
The environmentally friendly and easy-to-maintain Nano Membrane Toilet has secured backing from the Bill and Melinda Gates Foundation, and has been three years in the making. If initial trials go well, the technology could be used everywhere from military vehicles to luxury yachts.
At the core of the toilet's operation is a nanotech membrane, which separates vapourised water from the rest of the waste after some initial sedimentation. This process cleans it up for household washing or field irrigation by removing pathogens while the liquid is in a vapourised state. Nano-coated beads lead to the formation of clean water droplets on the other side.
An Archimedean screw system then kicks into gear to send the leftovers into a second chamber where they can be incinerated and turned into ash and heat. While the details of this second part of the process are still being finalised, the designers say it should be able to produce enough energy to power the whole operation, with some leftover to charge small gadgets such as mobile phones.
The remaining ash can be used as a fertiliser, while the closed lid and a special rotating mechanism (which replaces the flush) will prevent any unwanted odours from escaping.
That last point is important - the squalid state of many toilets in developing nations can lead to people opting for the great outdoors, which brings its own set of hygiene and safety issues.
The makers of the toilets are planning to distribute them through a rental system, which would bring costs for users down even further. Ghana has been earmarked as a potential location for the first trial run.
The Nano Membrane Toilet is being developed by researchers at Cranfield University, and was recently announced as a finalist at the Cleantech Innovate showcase.
"We are delighted to see this innovative solution gaining national recognition through Cleantech Innovate," said one of the team, Elise Cartmell. "The Nano Membrane Toilet has the potential to change millions of lives by providing access to safe and affordable sanitation."
The environmentally friendly and easy-to-maintain Nano Membrane Toilet has secured backing from the Bill and Melinda Gates Foundation, and has been three years in the making. If initial trials go well, the technology could be used everywhere from military vehicles to luxury yachts.
At the core of the toilet's operation is a nanotech membrane, which separates vapourised water from the rest of the waste after some initial sedimentation. This process cleans it up for household washing or field irrigation by removing pathogens while the liquid is in a vapourised state. Nano-coated beads lead to the formation of clean water droplets on the other side.
An Archimedean screw system then kicks into gear to send the leftovers into a second chamber where they can be incinerated and turned into ash and heat. While the details of this second part of the process are still being finalised, the designers say it should be able to produce enough energy to power the whole operation, with some leftover to charge small gadgets such as mobile phones.
The remaining ash can be used as a fertiliser, while the closed lid and a special rotating mechanism (which replaces the flush) will prevent any unwanted odours from escaping.
That last point is important - the squalid state of many toilets in developing nations can lead to people opting for the great outdoors, which brings its own set of hygiene and safety issues.
The makers of the toilets are planning to distribute them through a rental system, which would bring costs for users down even further. Ghana has been earmarked as a potential location for the first trial run.
The Nano Membrane Toilet is being developed by researchers at Cranfield University, and was recently announced as a finalist at the Cleantech Innovate showcase.
"We are delighted to see this innovative solution gaining national recognition through Cleantech Innovate," said one of the team, Elise Cartmell. "The Nano Membrane Toilet has the potential to change millions of lives by providing access to safe and affordable sanitation."
Article: This new waterless toilet can turn human waste into power
This seems over complicated idea and inefficient to me. Why don't they just build community toilets attached to a modified septic tank system. They can harvest the methane produced by the waste to power the village. A few farms in the US already do this. One said farm was even featured of an episode of Dirty Jobs- Poo pot episode.
There would have to be tests done to see if the composted human waste would be safe to use on crops. I don't see why not IF you use the methane to heat the waste to a specific temperature to kill all bacteria/parasites/pathogens. A septic tank would potentially be easier to maintain in the long run. What happens if thing this breaks? Are they going to waste more energy to come to remote villages in their fossil fuel dependent vehicles to fix it? In that time period where do you think the people are going to go? What will happen if these "Nano-coated beads" get released into the environment and consumed by people/wildlife? ( We already know that similar type of these beads are harmful to the environment. ) How do they expect these people to dispose of the batteries. . . or even charge them? Has this company even researched the potential dangers to the ecosystem? And how are people going to afford to rent these if they have little to no money to begin with? And If the people don't like them are the stuck in a contract with the Gates foundation?
This doesn't seem to do anything for anyone but the people who will profit from this while bragging to their rich elite friends that they "helped" a developing nation.
