Greenhouse gas emission methods to evaluate the different treatments of kitchen waste

• Main Authors: Ying-Chou Liao, 廖英洲
• Other Authors: 陳鴻烈
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/vy844r

碩士 === 國立中興大學 === 水土保持學系所 === 102 === The research tried to calculate the greenhouse gas (GHGs) emissions of kitchen waste treatments of incineration, swine feeding, composting and anaerobic digestion. We based on the kitchen waste data in Taichung to estimate the emissions by the method of Intergovernmental Panel on Climate Change (IPCC) and the results were compared with the current literatures. The calculation results showed that incineration process would produce 0.51 Gg GHGs and swine feeding was 0.055 Gg per Gg kitchen waste. The composting process depended on operation condition to result in 0.0475 Gg per Gg kitchen waste while in well operation and 0.1101 Gg in bad practice as the local did. If the gas reutilization was not executed in anaerobic digestion, it produced 1.0735 more Gg per Gg kitchen waste. On the contrary no GHGs released if the gas reuse was included in the process, was the least adversed effects on environment. For the swine feed method, there were two types of feeding sources: kitchen waste and artificial fodder. Under the hypothesis of GHGs emissions included the fermentation, manure management and land transportation for the two feed, we estimated the difference of the emissions generated from the shipping transportation of crop imported. The comparison results showed that 1 Gg kitchen waste could subtitute 0.1306 Gg fodder, decreased 0.0183 Gg emission and cut the cost of 1.23×106 NT dollar per Gg kitchen waste. We concluded anaerobic digestion proccese had the lowest GHGs emission, was the best alternative of kitchen waste treatment.