EFRI DCheM: Re-Engineering the Nitrogen Cycle: Distributed Electrochemical Nitrogen Refineries for Ammonia Synthesis and Water Purification

EFRI DCheM：重新设计氮循环：用于氨合成和水净化的分布式电化学氮精炼厂

基本信息

批准号：
2132007
负责人：
William Tarpeh
金额：
$ 200万
依托单位：
Stanford University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-01 至 2025-08-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2132007&HistoricalAwards=false
关键词：
EFRI DCheM Re Engineering Nitrogen

项目摘要

Nitrogen pollution is a Grand Challenge identified by the National Academies. Fertilizer production has outpaced removal of nitrogen from wastewater, leading to continuous losses that threaten aquatic ecosystems and human health. This project aims to meet this challenge by recycling waterborne nitrogen pollutants into high-purity ammonia. The PIs’ approach is unique in its ability to reduce nitrogen emissions and their negative cascade effects; reduce the energy and costs of conventional fertilizer production and wastewater treatment; and address legacy pollution that can persist for decades in coastal ecosystems like the Gulf of Mexico. The overall goal of this EFRI Distributed Chemical Manufacturing research project is to understand, design, and control multifunctional electrochemical processes that enable on-site fertilizer manufacturing and water purification with minimal environmental impacts. The project combines fundamental breakthroughs in novel materials and processes to convert wastewater pollutants into products. The project includes integration of the fundamental discoveries with cost optimization and performance in various wastewaters, as well as prioritizing adoption locations and value propositions for recovery facilities. Because re-engineering the nitrogen cycle is a demanding challenge, it requires the best approaches from the entire U.S. talent pool. Thus, the project team plans to broaden participation by hosting an annual workshop and demonstration day at a Stanford pilot-scale water treatment plant and invite underrepresented K-12 students; local community members; undergraduate researchers; and the project’s industrial advisory board representing fertilizer production, agriculture, and water treatment. The team will also develop workshops for incoming underrepresented undergraduate students, hands-on lab activities in classes, nitrogen-focused modules with K-12 students, and mentored research experiences for high school and undergraduate EFRI Scholars.Current engineering efforts to rebalance the nitrogen cycle have largely concentrated on the improvement of the Haber-Bosch process to produce ammonia or expansion of nitrogen removal from wastewater. This project puts forward a transformative vision: recycling reactive nitrogen (e.g., ammonia, nitrate) in distributed nitrogen refineries that convert fugitive emissions in waste waters into high-purity ammonia. The overall goal of the research is to understand, design, and control multifunctional electrochemical unit processes that enable distributed ammonia manufacturing and water purification with minimal environmental impacts. The project will utilize electrodialysis and nitrate reduction as a platform to benchmark and characterize ammonia-selective catalysts, as well as a treatment process applicable to two ubiquitous wastewaters: municipal wastewater and fertilizer runoff. The project’s objectives are to: (1) understand and control electrocatalytic microenvironments via selective electrochemical reactive separations; (2) establish quantitative material and process innovation targets for energy-efficient, cost-effective, and adaptive processes; and (3) leverage economic and environmental assessments to prioritize local contexts and products for wastewater-derived ammonia manufacturing.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.

氮污染是国家学院确定的巨大挑战。肥料的产量已经超过了从废水中清除氮，导致持续损失威胁着水生生态系统和人类健康。该项目旨在通过将水寄水氮污染物回收到高纯度氨中来应对这一挑战。 PIS的方法在减少氮排放及其负面级联反应的能力方面是独一无二的。降低常规肥料生产和废水处理的能量和成本；并解决遗产污染，该污染可能会在墨西哥湾等沿海生态系统中持续数十年。该EFRI分布式化学制造研究项目的总体目标是理解，设计和控制多功能电化学过程，从而使现场肥料制造和水净化能够以最小的环境影响。该项目结合了新型材料和过程中的基本突破，以将废水污染物转化为产品。该项目包括将基本发现与各种废水中的成本优化和性能相结合，以及优先考虑采用地点和恢复设施的价值建议。由于重新设计氮气周期是一个挑战的挑战，因此它需要整个美国人才库的最佳方法。这一项目团队计划通过在斯坦福试点规模的水处理厂举办年度研讨会和示威日来扩大参与，并邀请代表人数不足的K-12学生；当地社区成员；本科研究人员；该项目的工业顾问委员会代表肥料生产，同意和水处理。 The team will also develop workshops for incoming underrepresented undergraduate students, hands-on lab activities in classes, nitrogen-focused modules with K-12 students, and mentored research experiences for high school and undergraduate EFRI Scholars.Current engineering efforts to rebalance the nitrogen cycle have largely concentrated on the improvement of the Haber-Bosch process to produce ammonia or expansion of nitrogen removal from废水。该项目提出了一种变革性的视觉：在分布的氮炼油厂中回收反应性氮（例如，氨，硝酸盐），这些炼油厂将废水中的逃逸排放量转化为高纯度氨。该研究的总体目标是了解，设计和控制多功能电化学单元工艺，以实现分布式的氨制造和净化水，并具有最小的环境影响。该项目将利用电透析和硝酸盐减少作为基准和表征氨选择催化剂的平台，以及适用于两个普遍存在废水的处理过程：市政废水和肥料径流。该项目的目标是：（1）通过选择性电化学反应性分离来理解和控制电催化微环境；（2）建立定量材料和工艺创新目标，以解决节能，成本效益和适应性过程；（3）利用经济和环境评估来优先考虑废水衍生的氨制造的当地环境和产品。该奖项反映了NSF的法定任务，并通过使用基金会的知识分子和更广泛的影响评估标准来通过评估来表现出珍贵的支持。

项目成果

期刊论文数量（5）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Co-designing Electrocatalytic Systems with Separations To Improve the Sustainability of Reactive Nitrogen Management

DOI：
10.1021/acscatal.3c00933
发表时间：
2023-04
期刊：
ACS Catalysis
影响因子：
12.9
作者：
V. Niemann;P. Benedek;J. Guo;Y. Xu;S. Blair;E. Corson;A. Nielander;T. Jaramillo;W. Tarpeh
通讯作者：
V. Niemann;P. Benedek;J. Guo;Y. Xu;S. Blair;E. Corson;A. Nielander;T. Jaramillo;W. Tarpeh

Reactive Separation of Ammonia from Wastewater Nitrate via Molecular Electrocatalysis

通过分子电催化反应分离废水硝酸盐中的氨