Assessing the sustainability of iron clay mineral redox reactions for application in engineered systems

评估铁粘土矿物氧化还原反应在工程系统中应用的可持续性

• 批准号: 1948826
• 金额: --
• 依托单位: Newcastle University
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1948826
• 关键词: Assessing; sustainability; iron; clay; mineral

The quality of surface and groundwater is strongly influenced by redox reactions of iron-bearing minerals, which transform contaminants and nutrients. Iron-bearing clay minerals are particularly important because they are thought to be a renewable source of reduction equivalents in the environment. In this project, we will test the validity of this paradigm and expand current knowledge from closed systems to more realistic, flow-through conditions. Specifically, we will investigate aspects of reversibility of clay mineral redox reactions; the effect of redox cycling on clay mineral stability and reactivity; and differences between chemical, microbial, and biologically mediated clay mineral iron reduction. We will complement our experimental work with quantitative modeling of the processes involved. The results of this project will aid in designing effective (natural) remediation strategies as well as engineered water systems such as aquifer storage and recovery.

地表水和地下水的质量受到含铁矿物氧化还原反应的强烈影响，这些反应会转化污染物和营养物质。含铁粘土矿物尤其重要，因为它们被认为是环境中还原当量的可再生来源。在这个项目中，我们将测试这种范式的有效性，并将当前的知识从封闭系统扩展到更现实的流通条件。具体来说，我们将研究粘土矿物氧化还原反应的可逆性；氧化还原循环对粘土矿物稳定性和反应性的影响；以及化学、微生物和生物介导的粘土矿物铁还原之间的差异。我们将通过所涉及过程的定量建模来补充我们的实验工作。该项目的结果将有助于设计有效的（自然）修复策略以及含水层储存和恢复等工程水系统。

项目成果

Chemical Force Microscopy Study on the Interactions of COOH Functional Groups with Kaolinite Surfaces: Implications for Enhanced Oil Recovery

COOH 官能团与高岭石表面相互作用的化学力显微镜研究：对提高石油采收率的影响

• DOI: 10.3390/min7120250
• 发表时间: 2017-12-19
• 期刊: Minerals
• 影响因子: 2.5
• 作者: N. Santha;P. Cubillas;Adrian Saw;Harry Brooksbank;H. C. Greenwell
• 通讯作者: H. C. Greenwell

Effect of Structural Fe Reduction on Water Sorption by Swelling and Non-Swelling Clay Minerals

结构铁还原对膨胀和非膨胀粘土矿物吸水的影响

• DOI: http://dx.10.3390/min12040453
• 发表时间: 2022
• 期刊: Minerals
• 影响因子: 2.5
• 作者: Vasilopanagos C