SBIR Phase I: An Innovative Treatment Process for Nitrate Removal from Water

SBIR 第一阶段：去除水中硝酸盐的创新处理工艺

• 批准号: 1621986
• 负责人: Mark Hopkinson
• 金额: $ 22.45万
• 依托单位: Aqua Vectors Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2017-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1621986&HistoricalAwards=false
• 关键词: SBIR; Phase; Innovative; Treatment; Process

The broader impact of this SBIR Phase I project is the development of a low-cost process to mitigating nitrate, a ubiquitous pollutant that is steadily eroding the quality and availability of safe potable water all around the world. This novel process combines and sequences electrochemistry, aqueous chemical reactions, solid oxide formation and surface adsorption processes into a simple continuous-flow unit to achieve high levels of nitrate removal; optimization will be guided by computational techniques that lend themselves to discovery of new materials that may also demonstrate breakthrough potential for other critical fields such as fuel treatment and large scale energy storage. The project offers an opportunity to apply interdisciplinary solutions to complex societal problems and will yield a self-contained unit, inexpensive to build and operate, scalable, modular and reliable.The technical objectives in this Phase I research project are to develop an inexpensive water treatment module for selective removal of nitrate from aqueous media. The module employs a novel sequence of electrochemically controlled processes to promote in situ formation and ripening of metal hydrous oxide crystals, with documented adsorptive effectiveness, readily separating them from continuously flowing water. The primary objectives of this project are refining and addressing the high risk aspects of this methodology, merging field experience with concepts from published papers, sequencing processes and regulating conditions in novel ways, enhancing adsorption properties while mitigating interferences by oxyanions. The technology will advance understanding of metal hydrous oxides and the kinetics of their formation, which may well inform creation of other inexpensive processes for simultaneous removal of multiple problematic pollutants, potentially recovering them for commercial re-use.

SBIR第一阶段项目的更广泛的影响是开发一种低成本的工艺来减少硝酸盐，硝酸盐是一种普遍存在的污染物，正在不断侵蚀世界各地安全饮用水的质量和可用性。这种新工艺将电化学、水化学反应、固体氧化物形成和表面吸附过程组合并排序到一个简单的连续流动单元中，以实现高水平的硝酸盐去除;优化将由计算技术指导，这些计算技术有助于发现新材料，这些新材料也可能在其他关键领域（如燃料处理和大规模储能）中表现出突破性潜力。该项目提供了一个机会，应用跨学科的解决方案，以复杂的社会问题，并将产生一个独立的单位，廉价的建设和运行，可扩展的，模块化的和可靠的。在这个第一阶段的研究项目的技术目标是开发一个廉价的水处理模块选择性地去除硝酸盐从水介质。该模块采用了一种新的电化学控制过程的顺序，以促进原位形成和成熟的金属水合氧化物晶体，记录的吸附效果，容易将它们从连续流动的水中分离。该项目的主要目标是改进和解决该方法的高风险方面，将现场经验与已发表论文中的概念相结合，以新的方式对过程进行排序和调节条件，增强吸附性能，同时减轻含氧阴离子的干扰。 该技术将促进对金属水合氧化物及其形成动力学的理解，这很可能为创建同时去除多种有问题的污染物的其他廉价工艺提供信息，并可能将其回收用于商业再利用。