結合生命週期評估探討廚餘處理之最佳化模式

A life cycle assessment enhanced optimization model for food waste treatments

黃柏璋(Bo-Zang Huang)

指導教授 ： 林宏嶽

朝陽科技大學/理工學院/環境工程與管理系在職專班/碩士(2010年)

摘要

廚餘在生活垃圾占20%至40%的比例，故廚餘的收集與處理是垃圾零
棄政策的關鍵。不同的廚餘處理方式，有不同的成本與環境衝擊，研究利用生命週期評估及成本因子，探討不同的廚餘處理與再利用技術之環境及成本效益，包含廚餘濕式養豬、乾式養雞、堆肥、厭氧消化以及焚化。並建立數學規劃模式，分別評估不同技術在經濟效益最大化、環境衝擊最小化的條件下，區域的廚餘回收再生策。結果發現，若單純考量環境衝擊最小，則以堆肥處理及濕式養豬最佳。若考量經濟效益最大化，則依序以乾式養雞、濕式養豬及廚餘堆肥最佳。此外，本研究亦同時將成本與環境衝擊納入考量，建立多目標規劃模式，並以台中地區之廚餘收集與處理為案例加以探討，以了解上述方法之適用性。
關鍵字：廚餘、生命週期評估、成本效益、數學規劃、替代效益

關鍵字

替代效益 ； 數學規劃 ； 成本效益 ； 廚餘 ； 生命週期評估

並列摘要

In Taiwan, municipal solid waste (MSW) is usually composed of 20% to 40% food wastes, therefore, the collection and treatment of food waste is essential of Zero Waste policy. The cost and environmental impact of food waste treatment depend on the technology selected to process food waste. In
this study, five treatments including swine feeding, dried feeds for chicken, compost, anaerobic fermentation and incineration, have been examined and evaluated by life cycle assessment and cost analysis to evaluate the respective environment impacts and cost of a treatment. In addition, mathematical programming models were developed to analyze the optimal food waste management strategy based on minimal cost, minimal environmental impacts, respectively. The analyzed results indicate that the best treatment are compost and swine feeding under minimal environmental impacts, while dry chicken feed, swine feeding and compost are by order preferred for minimal cost
oriented. An multi-objective programming model, is also developed and a case study in Taichung area was also analyzed to demonstrate the applicability of the developed model.
Keywords: food waste, Life cycle assessment, cost-effective, mathematical programming model, replacement-effective.

並列關鍵字

replacement-effective ； food waste ； Life cycle assessment ； cost-effective ； mathematical programming model

參考文獻

48. 晶淨科技股份有限公司，「台中市螞蟻雄兵廚餘堆肥示範計畫」，台中(2004)。

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