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EPRI/WERF: Collaborative Research: Electrical percolation in flowable electrodes for energy-efficient water re-use applications

EPRI/WERF：合作研究：可流动电极中的电渗透用于节能水再利用应用

基本信息

批准号：
1706956
负责人：
Kelsey Hatzell
金额：
$ 25.5万
依托单位：
Vanderbilt University
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2017
资助国家：
美国
起止时间：
2017-08-15 至 2021-07-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1706956&HistoricalAwards=false
关键词：
EPRI WERF Collaborative Research Electrical

项目摘要

PI Name: Kelsey Hatzell/Marta HatzellProposal Number: 1706956/1706290 There is a growing need to develop low cost and modular water reuse systems to promote optimal reclamation and treatment of discharged water from industrial, municipal, agricultural and energy generation sites. Targeting strategies that optimize water usage could significantly alleviate stresses at the core of the food-energy-water nexus. The development of new water deionization technologies which can be easily scaled to meet the decentralized demands is imperative for water sustainability. Capacitive deionization is a cost effective and low energy electrochemical approach for treating brackish water streams; however, there are fundamental limitations to this approach because the process is not continuous. In this project a novel flow-electrode-based architecture is examined as a means for both continuous and scalable deionization and energy recovery. The researchers plan to collaborate with local organizations (Georgia Intern Fellowship for Teachers and Vanderbilt School for Science and Math) in order to design an experiential curriculum on brackish water treatment to increase water literacy in the Southeast. The objective of this project is to advance fundamental understanding of the design of flowable electrode architectures for ion removal processes. The PIs plan to study the concept of flow-electrode capacitive deionization (FCDI) for water treatment. FCDI systems have three flow channels, two of which serve to transport suspended activated carbon particles, which remove or electroadsorb ions, and a center channel where the feedwater is directed. To date, few studies have explored the fundamental mechanisms which promote efficient charge transfer and storage within flow electrodes. Specifically, understanding the influence of hydrodynamics within a flowable electrode and its effect on the formation and disruption or percolation networks can potentially increase material utilization and control electrochemical penetration depths. The PIs seek to define a new theoretical framework to describe charging and electron conduction processes at the particle-particle level in order to elucidate idealized operating conditions that promote energy efficient ion removal processes. The PIs will investigate the percolation network of carbon particles in a flow electrode using computational fluid mechanics, advanced in-situ characterization, and bench scale experimentation to obtain new fundamental and applied knowledge regarding this emerging deionization technology. Direct interrogation of the electrical, mechanical and microstructural properties of flowable electrode percolation networks will be obtained through advanced synchrotron-based techniques. The work has the potential to guide the design of a new process for water purification and may have broader relevance for other environmental technologies involving energy storage, energy conversion, and desalination.

PI姓名：凯尔西哈泽尔/玛尔塔哈泽尔建议编号：1706956/1706290越来越需要开发低成本和模块化的水再利用系统，以促进对来自工业、市政、农业和能源生产场所的排放水的最佳回收和处理。优化用水的目标战略可以大大减轻粮食-能源-水关系核心的压力。开发新的水去离子技术，可以很容易地扩大规模，以满足分散的需求是水的可持续性势在必行。电容去离子是一种成本有效且低能量的电化学方法，用于处理微咸水流;然而，这种方法存在根本的限制，因为该方法不是连续的。在这个项目中，一种新的流动电极为基础的架构进行检查，作为一种手段，连续和可扩展的去离子和能量回收。研究人员计划与当地组织（格鲁吉亚实习教师奖学金和范德比尔特科学与数学学校）合作，设计一个关于微咸水处理的体验课程，以提高东南部的水知识。这个项目的目的是推进离子去除过程中的可流动电极架构的设计的基本理解。PI计划研究用于水处理的流动电极电容去离子（FCDI）的概念。 FCDI系统具有三个流动通道，其中两个用于输送悬浮的活性炭颗粒，其去除或电吸附离子，以及引导给水的中心通道。迄今为止，很少有研究探索了促进流动电极内有效电荷转移和储存的基本机制。具体而言，了解可流动电极内的流体动力学的影响及其对形成和破坏或渗滤网络的影响可以潜在地增加材料利用率并控制电化学渗透深度。PI试图定义一个新的理论框架来描述粒子-粒子水平上的充电和电子传导过程，以阐明促进节能离子去除过程的理想化操作条件。PI将使用计算流体力学，先进的原位表征和实验室规模的实验来研究流动电极中碳颗粒的渗流网络，以获得有关这种新兴去离子技术的新的基础和应用知识。通过先进的基于同步加速器的技术，将获得可流动电极渗滤网络的电、机械和微观结构特性的直接询问。这项工作有可能指导水净化新工艺的设计，并可能对涉及能量储存，能量转换和海水淡化的其他环境技术具有更广泛的相关性。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Technoeconomic analysis of solar thermal desalination

DOI：
10.1016/j.desal.2019.114168
发表时间：
2020-01
期刊：
Desalination
影响因子：
9.9
作者：
Yanjie Zheng;K. Hatzell
通讯作者：
Yanjie Zheng;K. Hatzell

A Combined Heat- and Power-Driven Membrane Capacitive Deionization System

DOI：
10.1021/acs.estlett.7b00395
发表时间：
2017-10
期刊：
Environmental Science and Technology Letters
影响因子：
10.9
作者：
Jiankai Zhang;K. Hatzell;M. Hatzell
通讯作者：
Jiankai Zhang;K. Hatzell;M. Hatzell

In situ investigation of water on MXene interfaces

DOI：
10.1073/pnas.2108325118
发表时间：
2021-11
期刊：
Proceedings of the National Academy of Sciences
影响因子：
0
作者：
W. Zaman;Ray A. Matsumoto;M. Thompson;Yu-Hsuan Liu;Y. Bootwala;Marm B. Dixit;S. Nemšák;E. Crumlin;M. Hatzell;P. Cummings;K. Hatzell
通讯作者：
W. Zaman;Ray A. Matsumoto;M. Thompson;Yu-Hsuan Liu;Y. Bootwala;Marm B. Dixit;S. Nemšák;E. Crumlin;M. Hatzell;P. Cummings;K. Hatzell

Concentrating solar thermal desalination: Performance limitation analysis and possible pathways for improvement