| 英文摘要 |
In many developed countries like Germany, Denmark, New Zealand, Sweden, and Netherland, the utilization of biomass wastes converting into bio-gas/bio-methane is focused, and also in countries like India, Mainland China, and Brazil. However, re-utilization rate of bio-gas in Taiwan is very low due to the undesired treatment of wastes including agriculture, food wastes, biomass wastes, and sewage sludge. For the long-term energy policy and the sustainability point of view, it is crucial to convert the biomass wastes into bioenergy/biogas. Therefore, a well-designed management system for biomass wastes digestion and energy recovery could not only reduce the required final handling and discharge of biomass wastes and the usage of fossil fuel, but achieve the ideas of environmental protection and society health & development. On the other hand, the environmental impacts and sustainability of bioenergy utilization are assessed using 3E assessment (environment, engineering, economic). Moreover, collaborations with Demark Corp. are established and the discussion meeting with bioenergy experts is held to prompt the development of bioenergy utilization in Taiwan.
The conclusions for utilizing the bioenergy of wastes including food wastes, biomass wastes, and sewage sludge include co-digestion of various types of organic wastes, learning the foreign experience to increase the re-utilization rate of bio-gas, development and implementation of biogas technology, regulation for biogas development. Therefore, the recommendations include promoting the recycle of organic waste, building up the demonstration pilot plant for technology validation, well-designed regulation for bio-gas utilization, coopeation mechanism with outstanding Corp. in the world, substidy for the wastewater treatment plant for new precess installation, promting the bio-energy technology.
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