/sci/ - Science & Math

>>9538273
The industrial fertilizer companies have done their best to get people to buy their products and have been extremely successful. Meanwhile, most of the world is starting to make power plants fueled by crap. They are giant biomethane plants that make biomethane and high nitrogen fertilizer. Of course, even those can have contamination problems if the out-going fertilizer isn't pasteurized before leaving. Such plants can exist on micro-scale up to massive MW power plants anywhere people, farm refuse, and/or biowaste exist. It just depends on the bio-inputs as to how large it can be.

https://en.wikipedia.org/wiki/Biogas
https://www.youtube.com/watch?v=3UafRz3QeO8
https://www.youtube.com/watch?v=mCebM7a5XBQ

India of course has a huge amount of small village scale biogas production plants and individual house versions. There's a few turn key companies that sell complete systems for individual homes.

https://homebiogas.com/

Regardless, the refuse is a viable resource that is super easy to process and utilize. The microbes do the main part of the work. The amount of heat and electric needed to run the system comes from the refuse and microbes, thus, you don't actually need to add heat or electric to it that it can't already generate for itself and then some.