PFI-TT: Reactive biofilm surfaces for efficient nitrogen management in liquid waste streams

PFI-TT：反应性生物膜表面，可有效管理液体废物流中的氮

• 批准号: 2213616
• 负责人: Ramesh Goel
• 金额: $ 24.97万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-15 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2213616&HistoricalAwards=false
• 关键词: PFI; TT; Reactive; biofilm; surfaces

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project is to test and commercialize an energy-efficient, high-rate technology with a small carbon footprint to manage ammonium nitrogen in liquid waste streams. The project supports environmental sustainability through the protection of clean water. This project will use a new reactor design to utilize dissolved methane gas as a carbon source, achieving low nitrogen levels in the treated effluent and reducing the greenhouse gas footprint of wastewater treatment plants. This project may be suitable for small and large scale municipalities in the United States. Students involved in the project will obtain experiential training with an entrepreneurship mindset. The proposed project seeks to demonstrate and test critical parameters associated with obtaining low nitrogen in treated effluents while saving energy and carbon. More stringent limits are proposed for the total nitrogen content in treated wastewater that is discharged in estuaries, directly into the sea, or into other freshwater-sensitive water bodies. Conventional denitrification cannot meet this stringent criterion due to the low concentration biodegradable organic carbon in the influent needed for heterotrophic denitrification. The proposed technology combines anaerobic ammonia oxidation with methane supported denitrification in reactive biofilms to achieve low nitrogen in the final effluent. The process also uses dissolved methane gas to help denitrification, mitigating the challenges of greenhouse gas emissions. The partnerships with a technology vendor and several wastewater districts may ensure the commercialization of this research innovation.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这种伙伴关系对创新 - 技术翻译（PFI-TT）项目的更广泛的影响/商业潜力是测试和商业化具有较小的碳足迹的节能，高利率技术，以在液体废物流中管理氮。该项目通过保护清洁水来支持环境可持续性。该项目将使用新的反应堆设计利用溶解的甲烷气体作为碳源，在处理的废水中达到低氮水平，并减少了废水处理厂的温室气体足迹。该项目可能适用于美国的小型和大型城市。参与该项目的学生将通过企业家心态获得体验培训。拟议的项目旨在证明和测试与在节水中获得低氮相关的关键参数，同时节省能量和碳。对于在河口，直接进入海中或其他对淡水敏感的水体中排放的处理废水中，提出了更严格的限制。 由于异性疏松性硝化所需的进水中，低浓度可生物降解的有机碳，常规反硝化无法满足该严格的标准。所提出的技术将厌氧氨氧化与甲烷支持的反应性生物膜中的硝化作用结合在一起，以在最终废水中实现低氮。 该过程还使用溶解的甲烷气体来帮助反硝化，减轻温室气体排放的挑战。与技术供应商和几个废水区的合作伙伴关系可以确保该研究创新的商业化。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，认为值得通过评估来获得支持。