2. Excrement as fuel
Green Baron , |
Bethesda, MD, USA |
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(01.11.13) |
This actually is not new. This technique has been used for several decades in parts of rural China. I used to write some small notices on that when I was with "Environmental Science & Technology". Perhaps, however, newer technologies can be or have been developed, including those for "scrubbing" the resulting methane gas to "clean" it.
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