| 项目编号: | 1701512
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| 项目名称: | EAGER: GOALI: Crown Ether-enhanced Electrodialysis for Selective Removal of Problematic Ions in Feed Water and Waste Fluid of Unconventional Energy Production |
| 作者: | Weile Yan
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| 承担单位: | Texas Tech University
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| 批准年: | 2017
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| 开始日期: | 2017-04-15
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| 结束日期: | 2018-03-31
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| 资助金额: | 95846
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Engineering - Chemical, Bioengineering, Environmental, and Transport Systems
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| 英文关键词: | gas production
; unconventional oil
; project
; electrodialysis membrane
; electrodialysis process
; innovative selective desalination technology
; crown ether moiety
; ion sequestrant
; waste water
; water sustainability
; close collaboration
; other problematic ion
; feed water
; research
; target ion
; selective removal
; water resource
; water treatment
; hydraulic fracturing operation
; problematic ion
; intrinsic ion selectivity
; crown ether
; diverse conformation
; selective ion separation
; energy production
; alternative brackish water source
; local fresh water resource
; alternative water treatment technology
; alternative water source
; unique water treatment need
; water source
; attractive application
; water management
; effective removal
; localized concentration gradient
; potential complication
; energy industry
; strong industry-university collaboration
; energy-water nexus
; proper function
; novel ion-gating functionality
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| 英文摘要: | 1701512
Yan
This proposal aims to develop an innovative selective desalination technology using membranes specifically designed for the treatment of feed water and wastewater of unconventional oil and gas production. Sustainable development of unconventional oil and gas production relies on efficient use of water resources and safe disposal of effluent from hydraulic fracturing processes. A key to attaining these goals lies in the effective removal of a subset of contaminants amid high levels of background electrolytes in alternative (brackish) water sources and in the waste water produced during unconventional oil and gas production operations.
Species of key interest in this project include barium (II) and strontium (II), which give rise to scaling problems and interfere with the proper function of gelling agents. The project will involve close collaboration among two university PIs from Chemistry and Environmental Engineering at Texas Tech and an industrial co-PI with extensive experience in water management for a major oil and gas production company, this proposal will explore conjugating commercial electrodialysis membranes with optimized supported crown ether moieties to enable selective binding and transport of target contaminants in electrodialysis processes. The objective of this project is to develop a class of electrodialysis membranes with novel ion-gating functionality for selective removal of problematic ions in alternative brackish water sources for energy production uses. The central hypothesis of this research is that intrinsic ion selectivity of electrodialysis processes can be significantly improved by incorporating a thin layer of ion sequestrants of suitable structure and density at the surface of electrodialysis membranes, creating localized concentration gradients driving highly selective transport of the target ions. The PIs ability to prepare crown ethers of diverse conformations and to adapt their molecular structure for optimal metal binding specificity renders the proposed technology a versatile method for selective ion separation. One attractive application is to enable the use of alternative water sources for hydraulic fracturing operations. In this one-year project, the project will focus on the removal of two ions of primary concerns to unconventional oil and gas production, namely, Ba2+ and Sr2+, although the concept can in principle be extended to other problematic ions, such as Ra2+, which is the major source of radio-activity in naturally occurring radioactive material and its disposal is subject to stringent regulatory control. The research being addressed in the project will potentially reduce the environmental impacts of unconventional oil and gas production and enhance water sustainability at the energy-water nexus, particularly in regions where the fast-growing practice of hydraulic fracturing has imposed a considerable stress on the local fresh water resources. This project will provide excellent academic training and industry exposure opportunity for undergraduate students and two graduate students from Environmental Engineering and Chemistry through participation in a multidisciplinary team involving strong industry-university collaboration. The industrial partner will advise the research team on practical constraints and potential complications associated with alternative water treatment technologies, so that the PIs will formulate research strategies to address the unique water treatment needs of the energy industry, which are substantially different from water treatment for domestic use. The PIs will expand their current outreach programs to engage K-12 and community college students from under-represented groups in STEM curricula and research. Research data will be reported in public domain including conferences, industrial seminars, and peer-reviewed journals. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/90326
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Weile Yan. EAGER: GOALI: Crown Ether-enhanced Electrodialysis for Selective Removal of Problematic Ions in Feed Water and Waste Fluid of Unconventional Energy Production. 2017-01-01.
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