Life-cycle cost-benefit analysis on sustainable food waste management: The case of Hong Kong International Airport

JOURNAL OF CLEANER PRODUCTION

卷:187

Article

Lam, Chor-Man¹  Yu, Iris K. M.¹  Medel, Francisco¹  Tsang, Daniel C. W.¹  Hsu, Shu-Chien¹  Poon, Chi Sun¹ 

[1] Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Hong Kong, Peoples R China

关键词: Organic waste;    Incineration;    Anaerobic digestion;    Energy recovery;    Organic resource recovery;    On-site treatment;   

DOI  :  10.1016/j.jclepro.2018.03.160

来源: Elsevier

【 摘 要 】

Food waste is responsible for a significant portion of solid waste generation in the international airports, where efficient on-site or off-site sorting and recycling may be feasible. The aim of this study is to develop a Life-Cycle Cost-Benefit Analysis (LC-CBA) framework, through the integration of the life-cycle assessment (LCA) and cost-benefit analysis (CBA), to guide decision-making in sustainable food waste management. The analysis tool assesses the environmental and economic performance of different food waste management options, as demonstrated in a case study of the Hong Kong International Airport with six food waste handling scenarios consisting of different combinations of treatment technologies. Both centralized (i.e., off-site) and on-site treatment options were evaluated. The on-site incineration scenario was found to be the most sustainable option with the lowest life-cycle net costs of HKD 461.73/tonne. The scenario achieved the highest energy recovery of 707 kWh/tonne, which led to an economic savings of HKD 697.81/tonne and an environmental savings of HKD 470.96/tonne. The LC-CBA developed in this study is widely applicable to inform decision-making on sustainable food waste management worldwide. (C) 2018 Elsevier Ltd. All rights reserved.

【 授权许可】

Free