STTR Phase I: Desalination Batteries for Energy-Efficient Desalination and Selective Chloride Removal

STTR 第一阶段：用于高效海水淡化和选择性氯化物去除的海水淡化电池

• 批准号: 2136118
• 负责人: Margaret Lumley
• 金额: $ 25.6万
• 依托单位: CHLOBIS WATER, INC.
• 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: 2021-12-15 至 2023-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2136118&HistoricalAwards=false
• 关键词: STTR; Phase; Desalination; Batteries; Energy

The broader impact of this Small Business Technology Transfer (STTR) Phase I project is in comprehensively addressing issues related to water treatment, environment protection, and resource recovery through the development of a new desalination technology called a desalination battery. Steady growth in human population and rapid industrial development have led to greater demands for clean water production. At the same time, anthropogenic activities, agricultural practices, and the disposal of wastewater have led to the salinization of natural freshwater resources. The desalination battery combines the functions of desalination and energy generation to reduce the energy and costs associated with desalination, addressing challenges at the intersection of the water-energy nexus. The goal of the proposed research is to accelerate the commercialization of the desalination battery by evaluating the effects of various solution components present in real feedwater types on performance. The project will also establish mitigation plans for problematic solution components. Successful development of the desalination battery will help to safeguard access to freshwater resources and ensure an adequate water supply, which are essential to advance the health and welfare of the American public. Commercialization of the proposed technology will also create jobs for researchers and engineers making a positive economic impact. The goal of this STTR project is to further develop a new desalination technology, a desalination battery, which is based on the patented use of bismuth (Bi) as a chloride (Cl)-storage electrode in combination with a sodium (Na)-storage electrode. The desalination battery stores and releases energy during the charging and discharging processes. These processes are coupled with the storage and release of Na+ and Cl-. As the energy consumed during charging is recovered during discharging, the net energy required for desalination is drastically reduced. Furthermore, since Na+ and Cl- are removed via ion-specific electrode reactions, it enables membrane-free desalination. While efficient removal of NaCl has been demonstrated, the effects of various other solution components present in real wastewater and seawater are still unknown. The goal of the proposed work is to accurately evaluate the effects of different salinities, pH conditions, and various inorganic and organic species present in real feedwater on the performance of the desalination battery. The project will also develop mitigation plans for any problematic solution components. Accurate technoeconomic calculations will be used to prioritize the most promising feedwater targets and to develop a tailored commercialization plan for specific applications.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.

这种小型企业技术转移（STTR）I阶段项目的更广泛影响在于通过开发一种称为淡化电池的新淡化技术来全面解决与水处理，环境保护和资源恢复有关的问题。人口的稳定增长和快速的工业发展导致对清洁水生产的需求更大。同时，人为活动，农业实践和废水处理导致了天然淡水资源的盐分。淡化电池结合了淡化和能量产生的功能，以降低与脱盐相关的能量和成本，从而解决水能Nexus交汇处的挑战。拟议的研究的目的是通过评估实际饲料类型中存在的各种溶液组件对性能的影响来加速脱盐电池的商业化。该项目还将为有问题的解决方案组件制定缓解计划。脱盐电池的成功开发将有助于维护获得淡水资源的机会，并确保足够的供水，这对于提高美国公众的健康和福利至关重要。拟议技术的商业化还将为研究人员和工程师创造就业机会，从而产生积极的经济影响。 该STTR项目的目的是进一步开发一种新的海水淡化技术，即一种淡化电池，该技术基于将二氮（BI）作为氯化物（CL）储存电极与钠（NA）储存电极结合使用的专利使用。在充电过程中，脱盐电池存储并释放能量。这些过程与Na+和Cl-的存储和释放相结合。随着在排放期间收回充电过程中消耗的能量，脱盐所需的净能量大大减少。此外，由于通过离子特异性电极反应去除Na+和Cl-，因此可以使无膜脱盐。尽管已经证明了有效去除NaCl，但实际废水和海水中存在的各种其他溶液组件的影响仍然未知。拟议工作的目的是准确评估实际进食水中存在的不同盐度，pH状况以及各种无机和有机物种对脱盐电池性能的影响。该项目还将为任何有问题的解决方案组件制定缓解计划。准确的技术经济计算将用于优先考虑最有希望的源水目标，并针对特定应用制定量身定制的商业化计划。该奖项反映了NSF的法定任务，并认为值得通过基金会的智力优点评估来支持支持，并具有广泛的影响标准。