PFI-TT: Development of a New Technology for Removing Perchlorate from Water

PFI-TT：开发去除水中高氯酸盐的新技术

• 批准号: 2044692
• 负责人: Scott Oliver
• 金额: $ 25万
• 依托单位: University of California-Santa Cruz
• 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: 2021-05-01 至 2025-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2044692&HistoricalAwards=false
• 关键词: PFI; TT; Development; New; Technology

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project will address one of the key societal issues of potable water. Perchlorate is highly toxic and is present in contaminated groundwater of at least 75 known sites nationwide due to past manufacture of propellants, explosives, and fertilizers. This project seeks to develop a promising new technology for removing the perchlorate from water. Scale-up work is needed in order to treat large volumes of contaminated underground water. The materials are sustainable and the technology limits will be determined with regard to treating large volumes of groundwater pumped from the extraction wells. The commercial impact could be significant, saving companies and state governments the expense of the single-use resins currently in use for removal of perchlorate from water. The determination of the limits of the materials will confirm the cost-effectiveness of the technology for cleaning bodies of water polluted by this toxic compound. The researchers involved in the project will gain practical knowledge of regulated water treatment in an end-user environment. The undergraduate students from two NSF summer research programs(NSF REU and NIH ACCESS) will continue to participate in the project.The proposed project will continue to develop a perchlorate removal technology, which began with model solutions and progressed to actual contaminated underground water from an industrial site. With small volumes (50 to 500 mL) at a time, the prototype cationic materials the team has developed release environmentally-friendly species upon uptake of the perchlorate in record speed, amount and selectivity over other species in the water such as chloride. In addition, the team can reuse the material by driving the perchlorate back out with excess of the original species, giving a highly concentrated waste form for disposal (but more likely reuse as perchlorate source for industry). The team will set up a flow column where the water is pumped or cycled through/past the ion exchange material. Once optimized in the lab, larger volumes will be pilot tested directly at the industrial extraction wells. The treated water will be probed by a suite of instrumentation available in the lab. The goal is to establish a low-cost treatment for entire bodies of contaminated underground water at polluted industrial sites.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.

该创新-技术转化伙伴关系（PFI-TT）项目的更广泛影响/商业潜力将解决饮用水的关键社会问题之一。高氯酸盐是剧毒的，由于过去制造推进剂，爆炸物和肥料，全国至少有75个已知地点的地下水中存在高氯酸盐。该项目旨在开发一种有前途的去除水中高氯酸盐的新技术。为了处理大量受污染的地下水，需要扩大工作规模。这些材料是可持续的，将在处理从抽取威尔斯井抽取的大量地下水方面确定技术限制。商业影响可能是巨大的，节省公司和州政府的费用，目前用于去除水中高氯酸盐的一次性树脂。确定这些材料的限度将证实清洁受这种有毒化合物污染的水体的技术的成本效益。参与该项目的研究人员将获得最终用户环境中受管制水处理的实用知识。来自两个NSF夏季研究项目（NSF REU和NIH ACCESS）的本科生将继续参与该项目。拟议的项目将继续开发高氯酸盐去除技术，该技术从模型解决方案开始，发展到工业现场实际受污染的地下水。该团队开发的原型阳离子材料每次体积小（50至500 mL），在吸收高氯酸盐时以创纪录的速度，数量和选择性释放环境友好的物质，超过水中的其他物质，如氯化物。此外，该团队可以通过将高氯酸盐与过量的原始物质一起排出来重复使用该材料，从而提供高度浓缩的废物形式用于处理（但更有可能作为高氯酸盐来源重复使用工业）。该团队将建立一个流动柱，水在其中被泵送或循环通过/经过离子交换材料。一旦在实验室中优化，将直接在工业提取威尔斯井中进行更大体积的中试测试。处理后的水将由实验室中可用的一套仪器进行探测。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。