The Effect of Waste Recycling for Incineration Power by Life Cycle Assessment and Uncertainty Analysis

• Main Authors: Che-Wei Lu, 呂哲瑋
• Other Authors: Ying-Hsien Yang
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/69867393913570697070

碩士 === 嘉南藥理科技大學 === 環境工程與科學系暨研究所 === 98 === This study is based on the need of the product life cycle assessment (LCA) and waste management strategy for Taiwan. The methodology are applied for the waste incineration case study of Taipei by life cycle assessment, perturbation analysis and uncertainty analysis. LCA studies focused on greenhouse, acidification, eutrophication, heavy metals and solid waste by LCA functional unit of waste (ton) and electrical power(KWh). Furthermore, greenhouses gases emission estimated using perturbation and uncertainty analysis for waste recycling scenarios on paper, plastic, food waste and water content. The results are including three parts, LCA and interpretation of incineration, perturbation analysis of recycling scenarios, and uncertainty analysis. The relevant findings would provide information for future reference on LCA databases and the decision-making of waste management. The further results as follows, The case of Taipei, the end-of-life carbon footprint of paper, plastic, and food waste were 0.96 kg CO2-eq./kg, 1.79 kg CO2-eq./kg and 0.67 kg CO2-eq./kg, respectively. For the perturbation analysis results, the paper was the most benefit on the GHGs reduction for recycling ratio by 30%. The value will reduce by the recycling ratio increasing. For the perturbation analysis results of recycling ratio by 30%, the GHG emissions were from 2.39 kgCO2-eq./KWh to 2.44 kgCO2-eq./KWh and 2.69 kgCO2-eq./KWh for paper and plastic recycling, respectively. The food waste recycling was from 2.39 kgCO2-eq./KWh to 2.31 kgCO2-eq./KWh. For the perturbation analysis results of recycling ratio by 30%, the eco-efficiency was the best with 4.17 $NT/kgCO2-eq. for paper recycling. The next was 2.40 $NT/kgCO2-eq. for plastic recycling. For the perturbation analysis results of water content with 12% decreasing ratio, the greenhouse gas emissions will reduce with the water content reducing. The LCA functional unit was from 2.39 kgCO2-eq. / KWh to 1.80kg CO2-eq./KWh. Reducing waste water content showed a better benefit on greenhouse gas emissions reduction.