STTR Phase I: In Situ Cyanide Monitoring in Gold Mine Effluents

STTR 第一阶段：金矿废水中的氰化物原位监测

• 批准号: 1010153
• 负责人: Jon Thompson
• 金额: $ 15万
• 依托单位: United Science LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1010153&HistoricalAwards=false
• 关键词: STTR; Phase; Situ; Cyanide; Monitoring

This Small Business Technology Transfer (STTR) Phase I project addresses the unmet analytical needs for monitoring cyanide leaching of gold, a process widely used in the mining industry to refine gold ores. The goal is to establish the feasibility of sensors that permit the selective measurement of free and complexed cyanide in the cyanide leach reactor, detoxification reactor, and in the tailings facilities. The sensors are ideally suited for these measurements since they are expected to be unaffected by turbidity, to have a cyanide selectivity that can be tuned with specific receptors, and to require no off-stream sample handling. The project will take advantage of highly selective and fouling-resistant fluorous perfluoropolymer membranes. The broader/commercial impact of this project, if successful, is significant, as it is expected to reduce the enviromental harm resulting from the mining industry's mineral recovery. Specifically, the research aims to significantly reduce the amount of toxic cyanide use. More effective control of cyanide usage is expected to minimize accidental cyanide discharges significantly and thereby, reduce resulting negative impact on the environment.

这个小企业技术转让（STTR）第一阶段项目解决了监测氰化物浸金的未满足的分析需求，氰化物浸金是采矿业广泛使用的一种提炼金矿的工艺。我们的目标是建立传感器的可行性，允许在氰化物浸出反应器，解毒反应器和尾矿设施中的游离和络合氰化物的选择性测量。该传感器非常适合这些测量，因为它们预计不受浊度的影响，具有可以用特定受体调节的氰化物选择性，并且不需要离线样品处理。该项目将利用高选择性和抗污染的含氟全氟聚合物膜。该项目如果成功，将产生重大的广泛/商业影响，因为预计将减少采矿业矿物回收造成的环境损害。具体而言，该研究旨在显著减少有毒氰化物的使用量。更有效地控制氰化物的使用，预计将大大减少意外氰化物排放，从而减少对环境的负面影响。