Turning Poop into Fuel: The Personal BioGas Machine  E-mail
Written by Hank Green   
Friday, 29 February 2008

You gotta hand it to those people who are creating real-world solutions to real-world problems. Giant solar-collecting space lasers are pretty cool...but Sintex is for real. The Indian plastics company has created a very simple "digester" that takes something we have too much of (poop) and turns it into something we don't have enough of (energy).

The digester can actually take any organic material, including agricultural waste, kitchen scraps, or cow dung, and convert it to methane. This happens naturally, of course, and is happening in your septic tank (or at your sewage treatment plant) right now. The difference is that Sintex's biogas reactor has a little tube that moves the methane into a storage container. From there, the methane can be used for any natural gas application. Cooking, drying clothes, heating the home, boiling water, etc.

A "primed" digester (primed with cow dung, for a source of good bacteria) can digest all the waste of a four-person household and produce enough energy for that household to cook all of its meals! The device costs $425 and will pay for itself in less than two years. The Indian government has agreed to subsidize 1/3 of the cost of the units. In theory, that will actually save the government money, as they won't have to deal with the waste in other ways.

Sintex has only installed about 100 of the devices...but just wait. When real-world problems get real-world solutions, it's hard to hold them back from success.

Via Forbes


Comments (7)add
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written by net97surferx , February 29, 2008
As with most composters, 'recyclers' -- this one uses organic refuse and can 'even use cow dung'.

Normally, there is a caveat that makes it clear that human poodoo can not be used... as it contains certain organisms which .... well, it's not good to transmit them to compost or garden growth or the water table or... whatever.

So, if one is making strictly for methane... is it animal 'doo' or any 'doo' will do? I wonder since there are also so many looking at gray water recycling and even 'purified' water waste.



any doo will do
written by sam clark , March 02, 2008
If the digester is operated in the thermophilic (105-120 degrees F)most pathogens will be destroyed.
miss
written by holly , March 05, 2008
i really love trees and u ecogeek lets meet at my forest tommorrow 8:00
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written by holly , March 05, 2008
smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/grin.gif smilies/wink.gif
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written by marie , May 15, 2008
amazing, but is there any downfall to biogas machines?
I LOVE TO KNOW MORE OF BIOGAS
written by Anozie Reginald E , October 10, 2008
please can be offered an oppurtunity to learn more of biogas and where in what country.
...
written by Anozie Reginald E , October 10, 2008
I have searched extensive for the institute that teach about Biogas How do I apply to study in such institute.
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Hank Green
About the author:

Hank Green is the founder and chief geek at EcoGeek.org. Aside from being obsessed with saving the planet with technology, he loves to write and make videos. If you want to find out more about him, visit hankgreen.com

 
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