| Summary: | 碩士 === 國立高雄第一科技大學 === 環境與安全衛生工程研究所 === 99 === Municipal solid waste (MSW) comprises different characteristics depending on the material resources, and the composition, the properties, and the treatment changes. Therefore, complete chemical and physical composition information must be established to provide solutions for the various MSW in different districts. This study investigates the characteristics of MSW conducted during 2009 to 2010 in an urban area at Kaohsiung city. This study used Two-way Anova analysis and Duncan test to determine the temporal and spatial variation of the composition characteristics over the last six years (2005 to 2010).
Investigation of MSW characteristics reveals that the highest proportion comprises paper 36.06%, with food waste and plastics accounting for 35.12% and 16.71%, respectively. A low proportion of unburnable waste (recyclable materials) indicated a significant level of material recycling in the metropolitan districts. The main chemical component of the proximate analysis was moisture content, at 49.78%. Meanwhile, elemental analysis revealed that the highest proportion was carbon 23.73%, followed by oxygen 15.15% and hydrogen 4.42%.
Analyzing the statistics of the temporal variation of chemical and physical composition over the last six years, each category showed significant change, except fiber materials, in terms of physical composition. The statistics indicated that the chemical and physical proportions of each category were unstable over the last six years. However, according to the spatial variation analysis over the years, the chemical and physical proportions of each category showed no considerable change in any district. The data indicated that this could be due to lifestyle similarities causing similar proportions in the waste composition.
|
|---|
