CAREER: The Productive Re-Use of Industrial ByProducts to Solve Environmental Problems: A Paradigm Shift in the Way Industrial ByProducts are Traditionally Viewed

PI: Dennis G. Grubb：佐治亚理工学院“职业：工业副产品的生产性再利用以解决环境问题；“这个职业发展计划的总体目标是探索地球技术、地球化学、环境工程和社会科学之间的联系，后者主要是由于与工业副产品相关的耻辱。该研究项目将强调基础科学和工程的核心技能，并将与这些领域的教育项目联系起来，同时也将与创造性思维联系起来。具体来说，本研究将评估粉煤灰（纯的或与其他工业副产品混合的）是否可以用作多孔地球化学过滤器（PGF）介质，以成功缓解或减弱酸性矿井排水（AMD）。主要目标将是确定一种快速除氧AMD渗滤液的策略，同时最大限度地减少铁沉淀的负面影响，即PGF本身的孔隙堵塞。第二个目标是确定和量化控制氧化还原化学，以及与AMD通过各种PGF介质流动相关的沉淀和吸附现象，包括在缺氧条件下由微生物介导的涉及金属的氧化还原反应。第三个目标是确定哪种PGF介质可以最好地固定金属，并将这种性能与地球化学和岩土指标特性联系起来。教育活动的构建将促进心理和经验的广度和概念的多功能性。将引入批判性思维技巧，并开发特殊方面，以吸引和留住来自所有工程小组的更多学生。现有的和新的课程将融入历史和科学与工程哲学的信息，并将强调有助于发现和解决问题过程的因素。对工业副产品的生产性利用的研究将纳入课程，作为开始转变对工业副产品及其生产性再利用态度的一种手段。＊＊＊

Abstract Proposal: CMS 96-16854 PI: Dennis G. Grubb: Georgia Institute of Technology "Career: The Productive Re-use of Industrial Byproducts to Solve Environmental Problems: A Paradigm Shift in the Way Industrial Byproducts are used " The overall objective of this Career development plan is to explore the interface between geotechnology, geochemistry, environmental engineering and the social sciences, the latter principally due to the stigma associated with industrial byproducts. The research program will emphasize core skills in fundamental science and engineering, and will have its nexus with the educational program in these same areas, but also in creative thinking. Specifically, this research will evaluate whether fly ash (pure or blended with other industrial byproducts) can be used as a porous geochemical filter (PGF) media to successfully mitigate or attenuate acid mine drainage (AMD). The primary objective will be to identify a strategy for rapid deoxygenation of AMD leachates while minimizing the negative impacts of iron precipitation, i.e., pore clogging in the PGF itself. The second objective is to identify and quantify the governing redox chemistry, and precipitation and sorption phenomena associated with the flow of AMD through the various PGF media, including the redox reactions involving metals that are mediated by microorganisms under anoxic conditions. The third objective is to identify which PGF media can best immobilize metals and to correlate this performance with geochemical and geotechnical index properties. The educational activities will be constructed to promote mental and experiential breadth and conceptual versatility. Critical thinking techniques will be introduced, and special facets will be developed to attract and retain more students from all groups of engineering. Existing and new coursework will be infused with information from history and philosophy of science and engineering, and will highlight factors that can contribute to the discovery and problem solving process. The study of productive use of industrial byproducts will be introduced into coursework, as a means of initiating paradigm shift in attitudes concerning industrial byproducts and their productive re-use. ***