Advanced Toxic Metal Contaminant Remediation System

先进的有毒金属污染物修复系统

• 批准号: 7633215
• 负责人: PATRICK I JAMES
• 金额: $ 35.32万
• 依托单位: TESLA LABORATORIES, INC.
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2011-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7633215
• 关键词: Acids; Address; Businesses; Cells; Clinical Trials Design; Consumption; Copper; Development; Drainage procedure; Economics; Electrodes; Elements; Engineering; Environment; Environmental Hazards; Excision; Exhibits; Exposure to; Funding; Genetic Crossing Over; Goals; Incentives; Laboratories; Licensing; Marketing; Metal exposure; Metals; Methods; Metric; Mining; Modeling; Motivation; Operative Surgical Procedures; Performance; Phase; Positioning Attribute; Process; Protocols documentation; Public Health; Recovery; Sales; Secure; Services; Small Business Innovation Research Grant; Source; Staging; Stream; Structure; System; Technology; Test Result; Testing; Toxin; Water; Work; abstracting; commercialization; cost; design; improved; innovation; new technology; novel; programs; prototype; quality assurance; remediation; toxic metal; trend; wasting; water treatment

Project Summary/Abstract Project Summary: Harmful concentrations of metals enter the environment in significant quantities via numerous industrial activities. They are not readily detoxified by natural processes and pose lasting environmental hazards. This project's long-term application enhances public health by lessening exposure to toxic metals by reducing their release into the environment. To accomplish this, a novel, versatile, and improved electrowinning technology to remove and reclaim a variety of target hazardous and persistent metal contaminants from dilute sources such as Acid Mine Drainage (AMD) is being developed. Phase I successfully demonstrated concept technical viability and experimentally verified the new technology. The technology exhibits dramatically better performance than competing electrowinning technologies, allowing it to economically treat dilute metal streams that are currently impractical to address by existing methods. Objectives: Phase II will extend the Phase I work and seek to create a complete pilot-scale 10 gallon per minute (GPM) water treatment system incorporating the new technology, demonstrate its operation under service conditions, and position the technology for commercialization. Accomplishing these goals will provide an example of the technology of sufficient size and technical maturity for commercial utility while also showing real-world practical utility. A metal removal business will be developed around this technology. Proposed Activity: The Phase II objectives will be achieved by completing the following activities stepwise. ? Create a 10 GPM electrowinning cell element as the fundamental technology building block. ? Create a 10 GPM multi-stage treatment module using the cell elements. ? Verify the multi-stage module performance and select preferred operation parameters. ? Incorporate the multi-stage module into a portable pilot-scale prototype metal recovery system. ? Design and implement a short-term field demonstration of the prototype metal recovery system. ? Evaluate the field test results to refine the business model, pursue follow-on funding (private and public), and prepare a marketing strategy. Methods Employed: The proposed activities will be accomplished using the following methods. ? The cell design will be refined and scaled using performance trends determined in Phase I. ? Laboratory batch and flow-through tests optimizing the electrowinning of selected contaminant metals from synthetic and actual AMD using the technology will be utilized. ? Plating efficiency, metal removal rate, system power consumption, plus physical and performance stability will be determined as a function of selected module operating parameters. ? The field-trial will mirror flow-through laboratory tests and employ relevant protocols adapted from the EPA Mine Waste Technology Program (MWTP) Quality Assurance Project Plan (QAPP) 2006. Project Narrative The mature version of the new technology that was successfully proved under Phase I will enhance public health by lessening the amounts of toxic metals entering the environment. The technology works with a variety of metals singly or in mixtures, can be used to treat a wide range of contaminant sources, and allows the practical removal and reclamation of low concentrations of metals in water that competing technologies can not address. The metal reclamation achieved provides an economic incentive to treat sources currently allowed to contaminate the environment.

项目概要/摘要 项目摘要：有害浓度的金属通过以下方式大量进入环境： 众多的工业活动。它们不易通过自然过程解毒，并且具有持久的作用 环境危害。该项目的长期应用通过减少接触来增强公众健康 通过减少有毒金属释放到环境中来消除有毒金属。为了实现这一目标，需要一种新颖的、多功能的、 改进的电解沉积技术可去除和回收各种目标有害物质和持久性物质 来自酸性矿山排水 (AMD) 等稀源的金属污染物正在开发中。第一阶段 成功证明了概念技术可行性并通过实验验证了新技术。这 该技术比竞争的电解沉积技术表现出更好的性能，使其能够 经济地处理目前现有方法无法解决的稀金属流。 目标：第二阶段将扩展第一阶段的工作，并寻求创建一个完整的中试规模 10 加仑/ 分钟（GPM）水处理系统采用新技术，演示其运行情况 服务条件，并定位技术的商业化。实现这些目标将 提供具有足够规模和技术成熟度用于商业用途的技术示例，同时 还展示了现实世界的实用性。将围绕该技术开发金属去除业务。 建议的活动：第二阶段的目标将通过逐步完成以下活动来实现。 ？创建 10 GPM 电解沉积单元作为基本技术构建模块。 ？使用电池元件创建 10 GPM 多级处理模块。 ？验证多级模块性能并选择首选操作参数。 ？将多级模块合并到便携式中试规模原型金属回收系统中。 ？设计并实施原型金属回收系统的短期现场演示。 ？评估现场测试结果以完善商业模式，寻求后续资金（私人和 公众），并制定营销策略。 采用的方法：拟议的活动将使用以下方法完成。 ？电池设计将根据第一阶段确定的性能趋势进行完善和扩展。 ？实验室批量和流通测试优化选定污染物的电解沉积 将利用使用该技术的合成金属和实际 AMD 金属。 ？电镀效率、金属去除率、系统功耗以及物理和性能 稳定性将被确定为所选模块工作参数的函数。 ？现场试验将反映流通实验室测试并采用改编自的相关协议 EPA 矿山废物技术计划 (MWTP) 质量保证项目计划 (QAPP) 2006。 项目叙述 第一阶段成功验证的新技术成熟版本将增强公众 通过减少进入环境的有毒金属的量来健康。该技术适用于 各种金属单独或混合，可用于处理多种污染物源，并允许 竞争技术对水中低浓度金属的实际去除和回收 无法解决。实现的金属回收为目前处理来源提供了经济动力 允许污染环境。