SBIR Phase I: Ion-Exchange Fiber Composites for Rapid and Selective Removal of Perchlorate from Water

SBIR 第一阶段：用于快速选择性去除水中高氯酸盐的离子交换纤维复合材料

• 批准号: 1143255
• 负责人: James Langer
• 金额: $ 15万
• 依托单位: Serionix Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1143255&HistoricalAwards=false
• 关键词: SBIR; Phase; Ion; Exchange; Fiber

This Small Business Innovation Research (SBIR) Phase I project will result in the development of novel ultrafast, highly selective, high permeability ion-exchange fiber composites for removing perchlorate from drinking water. The proposed technology removes perchlorate 10-100 times faster than the best currently available options, and employs a low-cost production method compatible with widely available manufacturing equipment. Rapid contaminant removal is made possible by the use of micron-scale mass transfer distances; whereas commonly used beads and granular media are limited to much larger sizes because of significant drawbacks including difficult containment and enormous pressure drop, fiber composites display both high permeability and self-containment due to their permanently intertwined, self-supporting structure. Serionix will demonstrate feasibility of this new technology through the following activities: 1) preparation of active resin/substrate fiber composites using a spray-casting method; 2) characterization of perchlorate-removal efficiency in both continuous and intermittent flow configurations; and 3) research and development of pretreatment methods to replace the current processing solvent (acetone) with water and to improve composite wetting properties.The broader/commercial impact of this research is the development and commercialization of a low-cost technology enabling regulatory compliance and improved protection of human health. The EPA is set to regulate perchlorate in drinking water by 2014. This application represents only the first commercial opportunity for a platform technology with the ultimate potential to transform the industrial and residential water treatment landscape. Future applications may include ultrahigh efficiency water deionization, softening, and industrial wastewater recycling, personal protective equipment and clothing, and high activity solid acid/base catalysts. Dissemination of data and interpretation will contribute to improved understanding of mass transfer characteristics in fibrous sorbent materials used in both water and air treatment.

这项小型企业创新研究（SBIR）一期项目将开发新型超快、高选择性、高渗透性离子交换纤维复合材料，用于去除饮用水中的高氯酸盐。该技术去除高氯酸盐的速度比目前最好的方法快10-100倍，并且采用与广泛可用的制造设备兼容的低成本生产方法。通过使用微米级的传质距离，可以快速去除污染物；由于难以密封和巨大的压降等显著缺陷，常用的珠状和颗粒状介质限制在更大的尺寸上，而纤维复合材料由于其永久缠绕的自支撑结构而具有高渗透性和自密封性。Serionix将通过以下活动证明这项新技术的可行性：1)使用喷涂方法制备活性树脂/基材纤维复合材料；2)连续流动和间歇流动下高氯酸盐去除效率的表征；3)研究开发预处理方法，以水代替目前的处理溶剂（丙酮），提高复合材料的润湿性能。这项研究的更广泛/商业影响是开发和商业化一种低成本技术，使其能够遵守法规和更好地保护人类健康。美国环保署计划在2014年之前对饮用水中的高氯酸盐进行监管。这一应用代表了平台技术的第一个商业机会，它具有改变工业和住宅水处理景观的最终潜力。未来的应用可能包括超高效率的水去离子，软化和工业废水回收，个人防护设备和服装，以及高活性固体酸/碱催化剂。数据的传播和解释将有助于更好地了解用于水和空气处理的纤维吸收材料的传质特性。