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发表于 10-5-2008 09:26 AM
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原帖由 jetlee82 于 7-5-2008 12:26 AM 发表 
你也有研究?????
一点点啦
虽然可行
但赚没有的啦
我们政府虽有推广
但policy方面还不够吸引人家来投资 |
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发表于 14-5-2008 09:36 AM
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看看着。。。。。。。。。。
Where does methane come from? Methane isemitted from a variety of both human-related (anthropogenic) andnatural sources. Human-related activities include fossil fuelproduction, animal husbandry (enteric fermentation in livestock andmanure management), rice cultivation, biomass burning, and wastemanagement. These activities release significant quantities of methaneto the atmosphere. It is estimated that 60% of global methane emissionsare related to human-related activities (IPCC, 2001c). Natural sourcesof methane include wetlands, gas hydrates, permafrost, termites,oceans, freshwater bodies, non-wetland soils, and other sources such aswildfires.
Methane emission levels from a source can vary significantly from one country or region to another, depending on many factors such as climate, industrial and agricultural production characteristics, energy types and usage, and waste management practices. For example, temperature and moisture have a significant effect on the anaerobic digestion process, which is one of the key biological processes that cause methane emissions in both human-related and natural sources. Also, the implementation of technologies to capture and utilize methane from sources such as landfills, coal mines, and manure management systems affects the emission levels from these sources.
更多请看
http://www.epa.gov/methane/sources.html |
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发表于 14-5-2008 12:54 PM
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发表于 14-5-2008 07:18 PM
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其实RE不止LFG-energy罢了的嘛
还有很多
biomass-energy (rice mill, palm oil, wood waste....)
Mini hydro
wind & solar
反而landfill gas占最少, biomass 最多 |
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发表于 14-5-2008 07:45 PM
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楼主 |
发表于 17-5-2008 09:03 AM
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