I follow the work of the Appropriate Infrastructure Development Group (AIDG) pretty closely. Through education and business development AIDG promotes sustainable technologies that improve the quality of life in developing countries. AIDG has identified several sustainable technologies that can be made locally, with local â€œeco-engineersâ€. One technology AIDG is promoting in Guatemala is the use of Biodigesters.
advantage of the energy that is naturally present in animal waste and kitchen
trash. As these waste products break
down, whether in the ground, a compost heap, landfill, or biodigester, they
release methane, a potent greenhouse gas.
Biodigesters trap the methane before it becomes a problem and stores it for heating and cooking. This way, biodigesters can provide a sustainable substitute for propane, kerosene, and firewood. For those families that have to buy their fuel, a biodigester can save them hundreds of U.S. dollars every year. For those that cut trees down for firewood, a biodigester will save them time and help to prevent deforestation
Apart from providing fuel to
the family that uses it, a biodigester is also a source of high quality organic
fertilizer. Disease causing bacteria, such as E. Coli, are killed inside the
Introducing this simple technology reduces pressure on
natural forests, provides free high quality fertilizer, reduces food borne
illness due to E. Coli, improves health and saves money. It's not too often that we hear about a win-win-win-win-win technology.
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