請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21738
標題: | 廚餘再生方法之經濟效益評估-以樹林焚化廠服務範圍為例 The Cost-Benefit Analysis of Food-Waste Recycling : Shulin Refuse Incineration Service Area case, New Taipei City, Taiwan |
作者: | Chia-Feng Chang 張家鳳 |
指導教授: | 游以德 |
關鍵字: | 廚餘,養豬,堆肥,厭氧共消化,生命週期成本分析, food waste,pig feeding,composting,anaerobic co-digestion,the life cycle cost analysis (LCCA), |
出版年 : | 2014 |
學位: | 碩士 |
摘要: | 近年來隨著物質普遍大眾化,導致大量消費、浪費的情形,根據環保署統計資料顯示,國民日常生活產生的垃圾中,廚餘約佔一般家庭垃圾量的20~30%。
經過研究顯示,廚餘含水份高,且鹽份也高,並不適合焚化處理。若送到掩埋場,將可能造成臭味及滲出水污染問題,也不合適。而另一方面,既然廚餘含有豐富的有機成份,若能回收再利用,不但可減輕垃圾處理壓力,達成「零廢棄」之永續發展願景,還能降低對環境的衝擊。 本研究主要以新北市樹林焚化廠的服務範圍為研究對象,利用生命週期成本分析法 (Life cycle cost analysis, LCCA) 估算各階段投入成本,並計算各再生方式所得之效益,最後比較益本比,藉由分析處理過程中每個階段的成本和最後的效益,幫助執行者能有效掌握和改善,進而提升台灣整體廚餘再利用效率,以期對後續廚餘再生發展有所貢獻。 成本及效益研究結果之益本比大小為養豬>自行堆肥>厭氧共消化,處理每公噸所耗費之總成本之大小為委外堆肥>厭氧共消化>自行堆肥>養豬,每公噸之廚餘再生可得之效益大小為養豬>自行堆肥>厭氧共消化。廚餘養豬為低成本且高效益之方法,但有防疫問題,另外廚餘自行堆肥受限於場地大小,未來要擴大發展之可能性低,因此厭氧共消化是值得發展的廚餘再生方式。 With the changes in our diet, there is more food wastes produced around us. According to the data from environmental protection administration (EPA) in Taiwan, food wastes take up 20 to 30% of our general household wastes. In particular, the amount of food wastes in New Taipei City is twice more than other areas in Taiwan. And the government conducts the projection about anaerobic digestion of food waste in New Taipei City recently, the projection promotes transporting food wastes to Bali sewage plant to do the anaerobic digestion. Based on the above, New Taipei City is the major object in this study. Based on the composition analysis, food wastes is not suitable for incineration due to their high salt and water content. Disposing via landfill is also inappropriate because the odor and the leachate can cause pollution and problems. On the other hand, food wastes contain rich organic ingredients. If we can recycle and reuse it properly, not only can we reduce the burden of waste disposal and accomplish the vision of sustainable development and zero-waste, but we can also reduce our impacts on the environment. In this study, costs will be analyzed using the life cycle cost analysis (LCCA) approach, and benefits will be analyzed by market price of each by-product from each approach. In the end of this study, I will compare the cost-benefit ratio of each food-waste recycling systems, in the hope to contribute to the food-waste recycling development in Taiwan. Based on the result of this study, the benefit-cost ratio is pig feeding > self-composting > anaerobic co-digestion. The total cost of the treatment cost per tone of food waste is outsourcing composting > anaerobic co-digestion > self-composting > pig feeding. The total benefit of the treatment cost per tone of food waste is pig feeding > self-composting > anaerobic co-digestion. It shows that pig feeding with food waste scrapes is the approach with lowest cost and highest benefit, but it would cause epidemic problem. Self-composting of food waste is limited by the size of the venue, so the potential to expand in the future is low. Above all, anaerobic co-digestion of food waste is worth to develop in the future. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/21738 |
DOI: | 10.6342/NTU201900653 |
全文授權: | 未授權 |
顯示於系所單位: | 環境工程學研究所 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-103-1.pdf 目前未授權公開取用 | 2.05 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。