U.S.-Singapore Planning Visit: Collaborations in Forward Osmosis Research

美国-新加坡计划访问：正向渗透研究合作

• 批准号: 0832894
• 负责人: Isabel Escobar
• 金额: $ 1.55万
• 依托单位: University of Toledo
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-15 至 2010-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0832894&HistoricalAwards=false
• 关键词: U.S.; Singapore; Planning; Visit; Collaborations

0832894EscobarThis award supports a planning visit to enable Professor Isabel Escobar at the University of Toledo in Ohio, to meet with Professor (Neal) T.S. Chung at the National University of Singapore. The proposed research is novel in the sense that it combines a nanofiltration membrane with tailored surface functionalization for forward osmosis (FO) application. The researchers propose to develop the FO operation by increasing the value of the negative charge of the membrane surface at neutral pH values. This more negative nanofiltration membrane will have a higher monovalent electrolyte rejection along with lower concentration polarization. Development of a desalination process technology using the forward osmosis route has the potential to achieve up to a 75 percent decrease in costs and energy consumption in desalination, in comparison to conventional thermal or reverse osmosis processes. With continued development of more efficient nanofiltration membranes, operating at lower pressures, the forward osmosis process can be beneficial for both seawater desalination and identifying a new resource for fresh water availability. This would result in satisfying both economical and environmental concerns. The researchers have complementary scientific expertise in the field. The project will combine the University of Toledo?s expertise on membrane material synthesis, surface modification and fouling resistance with the University of Singapore?s expertise in forward osmosis and membrane formation. It is feasible that this project will develop patentable and marketable FO hollow fiber membrane technologies that could have significant long-term impact on the water supply and the membrane industry. It is anticipated that this project will provide unique training and educational opportunities for two U.S. graduate students to obtain a global research experience. These early collaborations between the scientists and students from each country will likely lead to long-term collaborations that will benefit both institutions.

0832894Escobar该奖项支持一次计划访问，使俄亥俄州托莱多大学的 Isabel Escobar 教授能够与 (Neal) T.S. 教授会面。新加坡国立大学的钟先生。 所提出的研究是新颖的，因为它将纳滤膜与定制的表面功能化相结合，用于正向渗透（FO）应用。 研究人员建议通过增加中性 pH 值下膜表面的负电荷值来开发 FO 操作。 这种负值更大的纳滤膜将具有更高的单价电解质截留率以及更低的浓差极化。 与传统的热力或反渗透工艺相比，使用正向渗透路线开发的海水淡化工艺技术有望将海水淡化的成本和能耗降低高达 75%。 随着在较低压力下运行的更高效纳滤膜的不断开发，正向渗透过程有利于海水淡化和寻找新的淡水资源。 这将导致满足经济和环境问题。 研究人员在该领域拥有互补的科学专业知识。 该项目将结合托莱多大学在膜材料合成、表面改性和抗污染方面的专业知识与新加坡大学在正向渗透和膜形成方面的专业知识。 该项目将开发可申请专利且可销售的 FO 中空纤维膜技术是可行的，该技术可能对供水和膜行业产生重大的长期影响。 预计该项目将为两名美国研究生提供独特的培训和教育机会，以获得全球研究经验。 来自每个国家的科学家和学生之间的这些早期合作可能会导致长期合作，使两个机构都受益。