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Sustainability 2017, 9(12), 2186; doi:10.3390/su9122186

Comparison and Evaluation of Large-Scale and On-Site Recycling Systems for Food Waste via Life Cycle Cost Analysis

1
Technical Institute, Domyoung Engineering & Consulting Corporation, Anyang-si 14057, Korea
2
Land & Housing Institute, Korea Land & Housing Corporation, Daejeon-si 34047, Korea
3
Department of Civil and Environmental Engineering, University of South Carolina, 300 main St., Columbia, SC 29208, USA
4
Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology, Goyang-si 10223, Korea
*
Author to whom correspondence should be addressed.
Received: 19 October 2017 / Revised: 14 November 2017 / Accepted: 23 November 2017 / Published: 27 November 2017
(This article belongs to the Section Sustainable Use of the Environment and Resources)
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Abstract

The purpose of this study was to evaluate the cost-benefit of on-site food waste recycling system using Life-Cycle Cost analysis, and to compare with large-scale treatment system. For accurate evaluation, the cost-benefit analysis was conducted with respect to local governments and residents, and qualitative environmental improvement effects were quantified. As for the local governments, analysis results showed that, when large-scale treatment system was replaced with on-site recycling system, there was significant cost reduction from the initial stage depending on reduction of investment, maintenance, and food wastewater treatment costs. As for the residents, it was found that the cost incurred from using the on-site recycling system was larger than the cost of using large-scale treatment system due to the cost of producing and installing the on-site treatment facilities at the initial stage. However, analysis showed that with continuous benefits such as greenhouse gas emission reduction, compost utilization, and food wastewater reduction, cost reduction would be obtained after 6 years of operating the on-site recycling system. Therefore, it was recommended for local governments and residents to consider introducing an on-site food waste recycling system if they are to replace an old treatment system or need to establish a new one. View Full-Text
Keywords: food waste treatment; on-site recycling system; large-scale treatment system; life cycle cost; cost-benefit food waste treatment; on-site recycling system; large-scale treatment system; life cycle cost; cost-benefit
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Lee, K.H.; Oh, J.-I.; Chu, K.H.; Kwon, S.H.; Yoo, S.S. Comparison and Evaluation of Large-Scale and On-Site Recycling Systems for Food Waste via Life Cycle Cost Analysis. Sustainability 2017, 9, 2186.

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