As a rural energy ecological construction project city of ADB loans, Huixian city, Henan province had a rapid development in biogas project. Analysis of the comprehensive utilization benefits of rural household biogas showed that the financial net present value was 5 393.65 yuan, the investment recovery period was 3.3 years and the internal return ratio was 27.93％. In the meanwhile,application of household biogas could reduce 13878t of CO2 and 115t of SO2,save 29.5 million yuan of reforestation fee, and provide daily cooking and lighting energy for nearly 150 thousand people. Household biogas had obvious economic, environmental, energy and social benefits,and it should be popularized and applied to rural household.%辉县市作为亚行贷款农村能源生态建设项目市,开展实施了农村沼气建设工作,农村户用沼气建设取得了较快的发展.对其综合利用效益进行了分析,结果表明:户用沼气建设的财务净现值为5 393.65元,投资回收期为3.3 a,财务内部收益率为27.93%,在经济上是可行的;同时可减少CO2排放13 878t,减少SO2排放115t,节约造林费2 950万元,解决近15万人的日常炊事和照明用能,具有明显的经济、生态、能源和社会效益,值得在农户中推广应用.
展开▼
