Arsenic Selective Ligand-Anchored Fiber for Purification of Drinking Water

用于净化饮用水的砷选择性配体锚定纤维

• 批准号: 8291548
• 负责人: Takuji Tsukamoto
• 金额: $ 10万
• 依托单位: CHEMICA TECHNOLOGIES, INC.
• 依托单位国家: 美国
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-15 至 2013-10-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8291548
• 关键词: Aluminum Oxide; Arsenic; Arsenic Poisoning; Binding; Coagulation Process; Communities; Development; Dialysis procedure; Economics; Equipment; Excision; Fiber; Filtration; Goals; Hand; Hazardous Substances; Human; Ion Exchange; Ligands; Medical; Metals; Methods; Osmosis; Performance; Phase; Process; Production; Property; Pump; Reaction; Resources; Site; Small Business Innovation Research Grant; Source; Surface; System; Technology; Testing; Toxic effect; United States Environmental Protection Agency; Water; Work; anthropogenesis; base; carbon fiber; cost; cost effective; density; design; drinking water; environmental health economics; functional group; innovation; large scale production; meetings; new technology; novel; programs; prototype; public health relevance; remediation; research and development; success; technology development

DESCRIPTION (provided by applicant): Today, arsenic (As) poisoning is one of the major environmental threats worldwide as millions of human beings have been exposed to excessive arsenic through contaminated drinking water. The serious toxicity of arsenic has been well documented. Worldwide, communities demand novel separation technologies for the removal of arsenic from drinking water. Conventional adsorbent technologies currently in use for remediation of metal-contaminated water have various limitations in terms of capacity, selectivity and robustness. The development of an innovative arsenic removal technology for drinking water based on a new class of fiber-based adsorbent is proposed in this SBIR program. In the Phase I program, the technical and economic feasibility of using a new class of arsenic selective ligand-anchored fiber for purification of drinking water was demonstrated. In this Phase II program, the fiber adsorbent will be further developed as the basis for an innovative arsenic removal technology for drinking water with higher capacity, good selectivity, and enhanced robustness compared to conventional technologies such as ion exchange, activated alumina, and others. The goals for this Phase II program will be achieved through the following Specific Aims: 1) Optimize functionalized fiber adsorbent for arsenic removal, 2) Elucidate mechanism of arsenic binding to functionalized ACF adsorbent 3) Perform large-scale production of functionalized fiber adsorbent, 4) Construct functionalized fiber adsorbent module and test operating efficacy, 5) Construct and evaluate pilot-scale functionalized fiber adsorbent module, 6) Summarize Phase II work, and evaluate process. This project will explore a novel technology that can be applied to the remediation of drinking water, water for medical use, such as dialysis, and groundwater contaminated by arsenic, and that can be sized to specific needs, from a hand-held pump to an industrial-sized filter capable of purifying thousands of gallons of water per day. PUBLIC HEALTH RELEVANCE: Arsenic (As) is identified as the number one most hazardous substance on the 2001 CERCLA Priority List of Hazardous Substances (ATSDR 2001).Today, arsenic poisoning is one of the major environmental threats worldwide as millions of human beings have been exposed to excessive As through contaminated drinking water. Our technology will allow communities of all sizes a simple and cost effective source of arsenic-free drinking water.

描述（由申请人提供）：如今，砷（As）中毒是全球主要的环境威胁之一，因为数百万人通过受污染的饮用水接触到过量的砷。砷的严重毒性已有充分记录。在世界范围内，社区需要新颖的分离技术来去除饮用水中的砷。目前用于修复金属污染水的传统吸附剂技术在容量、选择性和稳健性方面存在各种限制。该 SBIR 计划提议开发一种基于新型纤维吸附剂的创新饮用水除砷技术。在第一阶段计划中，论证了使用新型砷选择性配体锚定纤维净化饮用水的技术和经济可行性。在第二阶段项目中，纤维吸附剂将得到进一步开发，作为饮用水除砷创新技术的基础，与离子交换、活性氧化铝等传统技术相比，该技术具有更高的容量、良好的选择性和增强的稳健性。该第二阶段计划的目标将通过以下具体目标来实现：1）优化功能化纤维吸附剂的砷去除，2）阐明砷与功能化ACF吸附剂结合的机制3）进行功能化纤维吸附剂的大规模生产，4 ) 构建功能化纤维吸附剂模块并测试运行效果，5) 构建和评估中试规模的功能化纤维吸附剂模块，6) 总结第二阶段工作，并评估过程。该项目将探索一种新技术，可应用于饮用水、医疗用水（例如透析）和受砷污染的地下水的修复，并且可以根据特定需求调整尺寸，从手持式泵到工业规模的过滤器每天能够净化数千加仑的水。 公共健康相关性：砷 (As) 被确定为 2001 年 CERCLA 危险物质优先清单 (ATSDR 2001) 中排名第一的最危险物质。如今，砷中毒是全世界主要的环境威胁之一，因为数百万人因砷中毒而中毒。通过受污染的饮用水接触过量的砷。我们的技术将为各种规模的社区提供简单且具有成本效益的无砷饮用水源。