GOALI: Advancing Decentralized Anaerobic Membrane Bioreactor Treatment of Food Waste

目标：推进分散式厌氧膜生物反应器处理食物垃圾

• 批准号: 1605715
• 负责人: Adam Smith
• 金额: $ 33万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1605715&HistoricalAwards=false
• 关键词: GOALI; Advancing; Decentralized; Anaerobic; Membrane

1605715Smith, AdamThis joint proposal brings together the University of Southern California and FEED Resource Recovery (FEED) to collaboratively develop strategies to optimize decentralized anaerobic membrane bioreactor treatment of food waste. With new diversion rules for food waste in California taking effect 2020, decentralized anaerobic membrane bioreactor systems could benefit the food processing industries and other food waste producers to effectively manage their waste with recovery of renewable energy. Life cost analysis and life cycle cost analysis will provide valuable information on economic and environmental benefits, which could be helpful for policy makers, investors and food waste producers to adopt the technology.The focus of this project is to divert food waste from landfills to wastewater treatment plants or decentralized anaerobic digestion facilities where it can be converted to energy. There has been substantial research effort on anaerobic digestion of various waste streams, including food waste. However, anaerobic membrane bioreactors are still an emerging technology with few full-scale systems in operation worldwide. They are particularly attractive for decentralized food waste treatment given their smaller footprint, increased energy recovery, and higher quality effluent relative to conventional digestion. Food waste management has unique challenges relative to sewage sludge digestion. For example, food waste characteristics vary seasonally (e.g. corn or pumpkin season) which can be detrimental to process performance due to fluctuations in organic loading, toxicity, and other concerns. Further, components of food waste such as inorganic particles can be problematic for polymeric membrane integrity. FEED has experienced these issues first-hand. The PIs will evaluate strategies to optimize anaerobic membrane bioreactor treatment of food waste such as two-phase anaerobic membrane bioreactor treatment, co-digestion with fats, oil, and grease, and ceramic flat-sheet membranes. Pending positive results from bench-scale studies, the project team plans to evaluate two-phase treatment at the full-scale. The use of cutting-edge molecular microbiological tools on bench- and full-scale systems will advance our broader understanding of anaerobic food waste treatment at a mechanistic level. Life cycle analysis and life cycle cost analysis of anaerobic membrane bioreactors will provide valuable information to compare the economic and environmental merits of anaerobic membrane bioreactor in comparison to other food waste management method. Development of sustainability assessment tools will highlight economic and environmental opportunities for FEED and the solid waste industry. The proposed industry-university collaboration enables comprehensive evaluation of decentralized anaerobic food waste treatment through bench- and full-scale studies, use of advanced molecular microbiological analyses, and development of sustainability assessment tools. One Ph.D. student will be funded by this project and work both at USC and FEED over the project duration. In addition, an outreach activity (seminar and tour of FEED facility) for Carson High School students in the Environmental Science, Engineering, and Technology program is proposed to expose high school students to graduate studies in engineering and career paths in industry.

1605715史密斯，亚当这一联合提案汇集了南加州和FEED资源回收（FEED）的大学合作开发策略，以优化分散厌氧膜生物反应器处理食物垃圾。随着加州新的食物垃圾转移规则于2020年生效，分散式厌氧膜生物反应器系统可以使食品加工行业和其他食物垃圾生产者受益，从而通过回收可再生能源有效地管理他们的废物。寿命成本分析和寿命周期成本分析将提供有关经济和环境效益的宝贵信息，这可能有助于政策制定者、投资者和餐厨垃圾生产者采用该技术。该项目的重点是将餐厨垃圾从垃圾填埋场转移到废水处理厂或分散式厌氧消化设施，在那里可以将其转化为能源。对各种废物流（包括食物废物）的厌氧消化进行了大量的研究。然而，厌氧膜生物反应器仍然是一种新兴技术，在世界范围内几乎没有全规模的系统在运行。它们对于分散式食物垃圾处理特别有吸引力，因为它们的占地面积更小，能量回收率更高，并且相对于传统消化而言出水质量更高。食物垃圾管理相对于污水污泥消化具有独特的挑战。例如，食物垃圾的特性随季节变化（例如玉米或南瓜季节），由于有机负载、毒性和其他问题的波动，这可能对过程性能有害。此外，食物垃圾的组分如无机颗粒对于聚合物膜完整性可能是有问题的。FEED亲身经历了这些问题。PI将评估优化厌氧膜生物反应器处理食物垃圾的策略，如两相厌氧膜生物反应器处理，与脂肪，油和油脂共消化，以及陶瓷平板膜。在实验室规模研究取得积极结果之前，项目小组计划全面评估两阶段治疗。在实验室和全规模系统中使用尖端的分子微生物学工具将在机械水平上推进我们对厌氧食物垃圾处理的更广泛理解。厌氧膜生物反应器的生命周期分析和生命周期成本分析将为比较厌氧膜生物反应器与其他餐厨垃圾处理方法的经济和环境优势提供有价值的信息。可持续性评估工具的开发将突出FEED和固体废物行业的经济和环境机会。拟议的行业-大学合作通过实验室和全面研究，使用先进的分子微生物分析和开发可持续性评估工具，对分散式厌氧食物垃圾处理进行全面评估。一个博士学生将由本项目资助，并在项目期间在南加州大学和FEED工作。此外，外展活动（研讨会和FEED设施之旅）为卡森高中学生在环境科学，工程和技术计划，建议暴露高中学生在工程和职业道路的研究生学习在行业。