CAREER: Interfacial Reactions Affecting Heavy Metal Fate and Transport: An Integrated Research and Education Plan

职业：影响重金属归宿和迁移的界面反应：综合研究和教育计划

• 批准号: 0546219
• 负责人: Daniel Giammar
• 金额: $ 40万
• 依托单位: Washington University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-04-01 至 2012-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0546219&HistoricalAwards=false
• 关键词: CAREER; Interfacial; Reactions; Affecting; Heavy

0546219 Giammar While most prior work on immobilization mechanisms has focused on adsorption, surface precipitation and co-precipitation are crucial mechanisms that remain largely unexplored. The research will advance the application of heterogeneous nucleation and solid solution processes to environmental systems. Research on uranium- and lead-rich nanoparticles will contribute to the nascent fields of environmental nanoscience and nanotechnology. While building on the PIs experience combining macroscopic, microscopic and molecular-scale techniques to elucidate reaction mechanisms at the solid-water interface, new collaborations have been established to pursue further mechanistic insights with a powerful arsenal of spectroscopic techniques. By integrating the study of immobilization mechanisms with investigations of contaminant remobilization, the work bridges the gap between fundamental aquatic chemistry research and applied environmental remediation. In addition to the direct benefits to contaminated site management, the new mechanistic information will also benefit research on water treatment and corrosion processes.Broader Impacts. The integrated research and education plans will reach a diverse audience and broaden the participation of underrepresented groups through recruiting and outreach. Educational programs on water quality and sustainability for middle school students and the community reach beyond the university. The project expands the infrastructure for research and education by developing relationships between environmental engineering and other disciplines through the cross-listing of courses, formation of multidisciplinary research teams, and collaboration with chemists and earth scientists. The scientific results will be broadly disseminated to contribute to the fields of environmental engineering, aqueous geochemistry, and interfacial science. New course initiatives of problem-based learning projects and integrated aquatic chemistry learning units will be made available to the environmental engineering academic community. Advancing the understanding of lead and uranium immobilization mechanisms benefits society by enabling improved site management and remediation strategies. The education of environmental engineering students and outreach to pre-college students will have societal benefits extending into the future, especially when students develop a passion for lifelong learning.

0546219 Giammar虽然大多数先前关于固定机制的工作都集中在吸附，表面降水和共沉淀是至关重要的机制，这些机制在很大程度上尚未得到探索。这项研究将推动异质成核和固溶过程的应用到环境系统中。关于铀和富含铅的纳米颗粒的研究将有助于环境纳米科学和纳米技术的新生领域。在基于PIS经验的基础上，结合了宏观，微观和分子规模的技术，以阐明固体水接口处的反应机制，但已经建立了新的合作，以通过强大的光谱技术来追求进一步的机械洞察力。通过将固定机制的研究与污染物重新启动的研究相结合，该工作弥合了基本水生化学研究与应用环境修复之间的差距。除了对受污染的现场管理带来的直接益处外，新的机械信息还将受益于水处理和腐蚀过程的研究。综合的研究和教育计划将通过招聘和推广来吸引各种各样的受众，并扩大代表性不足的群体的参与。 关于中学生和社区的水质和可持续性的教育计划。该项目通过通过课程的交叉列入，多学科研究团队的形成以及与化学家和地球科学家的合作来扩展研究和教育的基础设施。科学的结果将广泛传播，以促进环境工程，水性地球化学和界面科学领域。基于问题的学习项目和综合水上化学学习单元的新课程计划将提供给环境工程学术界。通过改善现场管理和补救策略，促进对铅和铀固定机制的理解使社会受益。对环境工程专业的学生的教育以及对大学前学生的宣传，将获得社会利益，尤其是当学生对终身学习充满热情时。