|Alternative Title||The researches on Household Scaled Bio-energy Cleaning Utilization in Semi-arid Area|
|Place of Conferral||兰州|
|Keyword||半干旱区 生物质能 清洁利用 生态工程 户用沼气 CO2 减排 SO2 减排 评价指标体系|
本文在系统分析我国生物质能利用特点和半干旱区农业生产基本特征的基础上，提出了半干旱区户用生物质能清洁利用生态工程的设计原则和设计内容，基于将其确定为一个完整的生态系统， 从生态系统生态学的角度对该系统的能量流动状况进行了研究。本文根据国际通用的减排量计算方法，对中国农村户用沼气替代传统生物质能和煤炭所产生的 CO2 和 SO2 的减排量进行了计算和分析。依照生态工程评价原则建立了半干旱区户用生物质能清洁利用生态工程评价指标体系。主要研究结果如下：
China is an agricultural country with a large population. Bio-energy is one of important parts of all energy structure in China, especially in rural area, though it is not the main commercial energy. The main use of bio-energy was burning directly for a long time, which was not only low hot efficient but also release a large amount of dusts and ashes, and this has been one of important factors retarded the development of economy and social progress in rural area. The researches on household scaled bio-energy cleaning utilization and the extension of the related techniques can improve resource efficiently, reduce and avoid polluted materials, protect and improve environment quality, and keep people health. Therefore it can improve the sustainable development of economy and society.
3. Rural household biogas construction is a key construction program to current bio-energy cleaning utilization engineering in China. As daily-consumed energy for livelihood, biogas can substitute traditional biomass energy and provide clean energy for the rural residents, which can reduce the discharge of noxious gas, such as CO2 and SO2, and therefore partly moderate the tendency of the global warming. The quantity of emission reduction caused by household biogas construction’s substitution from 1996 to 2003 was analyzed according to international commonly used calculation method of emission reduction. The result showed that the use of biogas can reduce the discharge of CO2 397 600 to 4 193 900 ton and SO2 21 300 to 62 000 ton. The emission reduction of CO2 and SO2 brought by the development of household biogas industry from 2010 to 2050 is forecasted. According to the regular scenario of the energy demand forecast of rural China, the use of biogas can reduce the discharge of CO2 1 871 300 to 21 787 500 ton and SO2 79 700 to 469 000 ton from 2010 to 2050. As the strengthening scenario the quantity reduce discharge of CO2 30 777 000 to 45 928 000 ton and SO2 131 100 to 988 700 ton from 2010 to 2050.The rural household biogas construction of China is effective measures to save energy, improve the efficiency of energy utilization, decrease the discharge of air pollution and lower the incidence rate of disease caused by poisonous gas.
|张培栋. 半干旱区户用生物质能清洁利用研究[D]. 兰州. 兰州大学,2006.|
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