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首页> 外文期刊>Environmental Science & Technology >Systematic Evaluation of Industrial, Commercial, and Institutional Food Waste Management Strategies in the United States
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Systematic Evaluation of Industrial, Commercial, and Institutional Food Waste Management Strategies in the United States

机译：美国工业，商业和公共机构食物垃圾管理策略的系统评估

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摘要

New regulations and targets limiting the disposal of food waste have been recently enacted in numerous jurisdictions. This analysis evaluated selected environmental implications of food waste management policies using life-cycle assessment. Scenarios were developed to evaluate management alternatives applicable to the waste discarded at facilities where food waste is a large component of the waste (e.g., restaurants, grocery stores, and food processors). Options considered include anaerobic digestion (AD), aerobic composting, waste-to-energy combustion (WTE), and landfilling, and multiple performance levels were considered for each option. The global warming impact ranged from approximately -350 to -45 kg CO_2e Mg~(-1) of waste for scenarios using AD, -190 to 62 kg CO_2e Mg~(-1) for those using composting, -350 to -28 kg CO_2e Mg~(-1) when all waste was managed by WTE, and -260 to 260 kg CO_2e Mg~(-1) when all waste was landfilled. Landfill diversion was found to reduce emissions, and diverting food waste from WTE generally increased emissions. The analysis further found that when a 20 year GWP was used instead of a 100 year GWP, every scenario including WTE was preferable to every scenario including landfill. Jurisdictions seeking to enact food waste disposal regulations should consider regional factors and material properties before duplicating existing statutes.
机译：最近，许多司法管辖区颁布了限制食物垃圾处理的新法规和目标。该分析使用生命周期评估评估了食物垃圾管理政策对环境的影响。制定了方案以评估适用于在食物垃圾占废物大部分的设施（例如，餐馆，杂货店和食品加工厂）丢弃的废物的管理替代方案。考虑的选项包括厌氧消化（AD），好氧堆肥，废物转化为能源的燃烧（WTE）和垃圾填埋，并且每个选项都考虑了多种性能水平。对于使用AD的情景，全球变暖影响范围约为-350至-45 kg CO_2e Mg〜（-1）；对于使用堆肥的情景，全球变暖影响为-190至62 kg CO_2e Mg〜（-1），对于-350 kg至-28 kg当所有废物都由WTE管理时，CO_2e Mg〜（-1）；当所有废物被填埋时，则为-260至260 kg CO_2e Mg〜（-1）。发现垃圾填埋场的转移减少了排放，从WTE转移食物垃圾通常会增加排放。分析还发现，当使用20年的GWP而不是100年的GWP时，包括WTE的每种方案都比包括垃圾填埋场的每种方案都更好。试图颁布食物垃圾处理法规的司法管辖区应在复制现有法规之前考虑区域因素和材料特性。

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  • 来源
    《Environmental Science & Technology》 |2016年第16期|8444-8452|共9页
  • 作者

    Keith L. Hodge; James W. Levis; Joseph F. DeCarolis; Morton A. Barlaz;

  • 作者单位

    TeamAg, Incorporated, 120 Lake Street, Ephrata, Pennsylvania 17522, United States;

    Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Campus Box 7908, Raleigh, North Carolina 27695, United States;

    Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Campus Box 7908, Raleigh, North Carolina 27695, United States;

    Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Campus Box 7908, Raleigh, North Carolina 27695, United States;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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  • 正文语种 eng
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