Advance energy recovery from source separated food waste

推进从源头分离的食物垃圾中回收能源

• 批准号: 549912-2020
• 负责人: Liu, Yang
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=721203
• 关键词: Advance; energy; recovery; source; separated

Canada generates some 170,000 tons of food waste annually, much of which ends up in the linear waste-to-discharge waste treatment strategy, such as landfill or incineration. Annually, about 500,000 tons of municipal solid waste is produced in Edmonton, of which 280,000 tons are food waste of high moisture. Beneficial uses of food waste are often limited due to its mixing with other waste streams (due to mixed waste collection) and the labor-intensive nature for its recovery. Recent regulatory actions in many cities have led to the separation of food waste from other municipal solid wastes, opening up options to develop energy-efficient treatment processes and reduce greenhouse gas emissions. This two-year project aims to develop novel processes to advance energy recovery from source-separated food waste by incorporating laboratory-proven food waste co-digestion strategies and adding conductive materials to enhance direct interspecies electron transfer (a recently discovered biological metabolic pathway for biomethane production) assisted anaerobic digestion. Novel anaerobic digestion reactor design to improve mass-transfer rates and overall efficiency of food waste digestion will be integrated. New anaerobic digestion reactors and food waste management strategies to be developed by the proposed research can be used to treat food waste generated by other municipalities, especially when considering the source-separated collection of food waste.

加拿大每年产生约170，000吨食物垃圾，其中大部分最终采用线性废物排放废物处理战略，如填埋或焚烧。埃德蒙顿每年产生约50万吨城市固体废物，其中28万吨是高水分的食物废物。由于食物垃圾与其他废物流混合（由于混合废物收集）以及其回收的劳动密集型性质，食物垃圾的有益用途往往受到限制。许多城市最近采取的监管行动已导致将食物垃圾与其他城市固体废物分开，为开发节能处理工艺和减少温室气体排放开辟了选择。这个为期两年的项目旨在开发新的工艺，通过结合实验室证明的食物垃圾共消化策略和添加导电材料来促进直接物种间电子转移（最近发现的生物甲烷生产的生物代谢途径），以促进从源头分离的食物垃圾中回收能量。新型厌氧消化反应器的设计，以提高传质速率和整体效率的食物垃圾消化将被整合。拟议研究开发的新厌氧消化反应器和食物垃圾管理策略可用于处理其他城市产生的食物垃圾，特别是在考虑食物垃圾的源头分类收集时。