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: 8064792
• 负责人: Takuji Tsukamoto
• 金额: $ 37.44万
• 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/8064792
• 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）中毒是全世界主要的环境威胁之一，因为数以百万计的人通过受污染的饮用水暴露于过度的砷中。砷的严重毒性已得到充分记录。在全球范围内，社区要求新颖的分离技术从饮用水中去除砷。当前正在使用的用于修复金属污染水的常规吸附技术在容量，选择性和鲁棒性方面有各种限制。该SBIR计划提出了基于新的基于纤维的吸附剂的新型饮用水砷清除技术的开发。在第一阶段计划中，展示了使用新的砷选择性配体纤维纤维纯化饮用水的技术和经济可行性。在此II阶段计划中，与离子交换，激活的氧化铝等传统技术相比，纤维吸附剂将进一步开发为具有更高容量，良好选择性和增强鲁棒性的饮用水的创新砷去除技术的基础。该II期计划的目标将通过以下特定目的实现：1）优化功能化的纤维吸附剂以清除砷的脱离，2）阐明与功能化的ACF吸附剂的砷结合机制3）进行大规模的纤维产生，并构建功能性的构建功能，并构建功能性的构造效果，并构建功能性的效果，并实现了效果，并实现了效果，并实现了效果，并实现了效率的效果，并实现了良好的效果，并实现了效果，并实现了效果，并实现了效果，并实现了良好的效果，并实现了效果。功能化的纤维吸附剂模块，6）总结了II期的工作并评估过程。该项目将探索一种新型技术，该技术可用于修复饮用水，用于医疗用水的水，例如透析和被砷污染的地下水，并且可以针对特定需求进行调整，从手持泵到能够每天净化数千美元的水的工业尺寸滤镜。 公共卫生相关性：砷（AS）被确定为2001 CERCLA优先级中最有害物质的危险物质清单（ATSDR，2001年）。TODAY，砷中毒是全球主要的环境威胁之一，因为全世界数百万人类已经通过污染的饮用水来暴露于多余的人类。我们的技术将允许各种规模的社区简单且具有成本效益的无砷饮用水来源。