Hydraulic Fracturing of Controlled Release Oxidants for Remediation of Low Permeability Zones

控释氧化剂水力压裂修复低渗透区

• 批准号: 10225761
• 负责人: Alexis Wells Carpenter
• 金额: $ 43.97万
• 依托单位: AXNANO, LLC
• 依托单位国家: 美国
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-17 至 2022-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/10225761
• 关键词: Address; Affect; Amendment; American; Area; Behavior; Biological Models; Case Study; Chemicals; Chronic; Collaborations; Complex; Computer Models; Coupling; Data; Databases; Development; Environment; Environmental Engineering technology; Environmental Pollution; Evaluation; Family; Formulation; Fracture; Future; Geology; Hazardous Chemicals; Hazardous Waste Sites; Headache; In Situ; Indoor Air Quality; Industry; Infrastructure; Injectable; Injections; Intellectual Property; Lead; Legal patent; Liquid substance; Measures; Methods; Modeling; Monitor; North Carolina; Oxidants; Pain; Performance; Permeability; Phase; Positioning Attribute; Process; Program Development; Radial; Reagent; Risk; Scheme; Secure; Site; Small Business Innovation Research Grant; Societies; Soil; Source; South Carolina; Surface; Surveys; Tail; Techniques; Technology; Testing; TimeLine; Water; chemical release; chemical stability; clay; commercialization; contaminated drinking water; controlled release; cost; design; drinking water; exposed human population; field study; global environment; ground water; improved; innovation; interest; manufacturing process; oxidation; programs; prototype; remediation; success; technology development; transmission process; uptake; vapor intrusion

Project Summary/Abstract AxNano, LLC SBIR Fasttrack 2019 The EPA estimates that one out of every four Americans lives within three miles of a hazardous waste site. To meet the growing need for remediating these contaminated sites, the US remediation market has been increasing steadily since 2009, averaging 2-3% increases per year. The global environmental remediation technology market is forecasted to expand to $80.5 billion in 2019. Remediation of contaminated sites can cost upwards of millions of dollars and can last for decades, especially in challenging geological settings such as low permeability (low-k) zones (e.g., clay and bedrock). Sites where contaminants are concentrated in low permeability zones are a particular industry headache as these areas can serve as sub-surface “source zones” providing slow release of contaminants into transmissive zones for decades of longer. Traditional, liquid-phase remediation injections that are successfully used in more permeable areas, when applied to low-k zones often result in only partial clean-up followed by chronic site management. Costly re-applications to address rebounding (increases in contaminant concentration following remediation) and tailings (persistent non-zero contaminant levels) are one of the biggest pain-points for environmental engineers. These rebounding and tailings lead to increase liability, increased remediation cost, and long drawn-out remediation schemes. AxNano, in collaboration with North Carolina A&T, has specially formulated their patented controlled release technology to address these persistent low-k zones. RemRx® CRI, controlled release injectant, can be emplaced into low k zones by hydraulic fracturing and provide sustained levels of ISCO reagents directly into the trapped contaminated area with one/few applications to address these issues of rebounding and tailings. AxNano has established prototypes and preliminary studies to support a Fasttrack SBIR program. Phase I of the program will support the development RemRx® CRI, through bench-scale testing of prototypes in low- k zone 2-D flow chambers and radius of influence estimation by computational modeling. Phase II aims to pilot- scale demonstrate manufacturing the Phase I-validated MVP and field test at two sites in the Piedmont Region. Field demonstrations will include comparison to straight oxidant performance. Data from pilot-scale demonstration and computational modeling will be used to design full-scale deployments. AxNano will design a full scale manufacturing process to support transition of the RemRxTM CRI technology to future large scale deployment. This technology development program leverages a unique intellectual property position to develop this new RemRxTM family of products. The remediation and broader water/wastewater markets are complex, making market uptake of new remediation technologies difficult. However, controlled release ISCO agents are of strong interest. The AxNano Team is committed to achieving the successful commercialization of this high-impact technology.

项目摘要/摘要Axnano，LLC SBIR FastTrack 2019 EPA估计每四个美国人中有一个生活在危险废物的三英里之内 地点。为了满足对这些受污染地点进行修复的日益增长的需求，美国的补救市场一直是 自2009年以来，稳定增长，平均每年增加2-3％。全球环境修复 预计技术市场将在2019年扩大到805亿美元。修复受污染的地点可能会花费 超过数百万美元，可以持续数十年，尤其是在地质环境（例如低的地质环境）中 渗透率（低K）区域（例如粘土和基岩）。污染物浓缩的地点 渗透率区域是一个特定的行业标题，因为这些区域可以用作地下“源区” 几十年来，将污染物释放缓慢释放到透射区域。传统的液态相 当应用于低k区域时，在更渗透区域成功使用的补救注射通常 仅导致部分清理，然后是慢性场地管理。昂贵的重新应用程序解决 反弹（修复后污染物浓度的增加）和尾矿（持续的非零） 污染物水平）是环境工程师的最大疼痛点之一。这些反弹和 尾矿会导致责任增加，补救成本增加以及长期的抽奖补救方案。阿克斯纳诺， 与北卡罗来纳州A＆T合作，已专门制定了专利的受控释放技术 remrx®CRI，受控释放注射剂，可以分为低k 通过水压压裂区域，直接将持续水平的ISCO试剂提供到被困的 受污染的区域，并提供一个/几个应用程序，以解决这些反弹和尾矿的问题。 Axnano建立了原型和初步研究，以支持FastTrack SBIR计划。阶段 该程序的I将通过对低 - 低 - 原型测试的台式测试来支持开发REMRX®CRI K区2-D流动室和通过计算建模的影响估计的半径。第二阶段旨在试行 比例证明在皮埃蒙特地区的两个地点生产了I验证的MVP和现场测试。 现场演示将包括与直氧化物性能的比较。来自飞行员规模的数据 演示和计算建模将用于设计全尺度部署。 Axnano将设计 一个完整的制造过程，以支持Remrxtm CRI技术过渡到未来大规模的过渡 部署。 该技术开发计划利用独特的知识产权立场来发展这一点 新的Remrxtm产品家族。补救和更广泛的水/废水市场很复杂，使得 市场吸收新的补救技术。但是，受控释放ISCO代理很强 兴趣。 Axnano团队致力于实现这一高影响力的成功商业化 技术。