I don't know the details but I love the concept.
Creativity can be a great force-multiplier and when it comes to food production, I have long been fascinated. Google "Growing potatoes in a barrel" for those with limited horizontal space. The same thing can be done with a ton of other vegetables. All the discarded plant parts ... feed it to worms ... worm casting (poop) is the best fertilizer in the world.
My daughter once needed pure methane for a Science Fair experiment. It's very difficult to buy pure methane in the U.S. So, we built a bio-digester and a week later we had an inexhaustible supply of methane. Mind you, it was polluted with CO2 ... so we bubbled it up through calcium oxide. The calcium oxide we obtained by roasting seashells from the beach (drives off the CO2), dissolving them in water and pouring the liquid through a coffee filter.
We did have one problem: We couldn't exhaust the methane production. We ran it around the clock for days but the flame kept burning. We ended up having to simply dump the unexhausted fuel in a flower bed.
Heat to boil water, cook food and keep warm ... all from old food in the fridge that had gone bad. Restaurants throw out tons of scraps and uneaten food every day. That food if filled with untapped energy.
Quill
Thank you for the visit my friend, I tried to return the support before, but you didn't have a post available that was less than 7 days old. So I will go to your blog and have a peep again.
The authorities are working on a big methane gas project over here by using the fuel from the landfills to create electricity.
Your daughter's bio-digester interests me, as it could be a viable source for single users that live in shacks. I will have to look into it, as just maybe something can be designed to help the poor souls.
Blessings!