Microbial Dust Suppression

微生物抑尘

• 批准号: 0725398
• 负责人: Sookie Bang
• 金额: --
• 依托单位: South Dakota School of Mines and Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0725398&HistoricalAwards=false
• 关键词: Microbial; Dust; Suppression

The main objective of this research is to utilize a novel microbial technique in dust suppression. Results from previous and ongoing studies by the principal investigator on microbial remediation of concrete and structural cracks have identified potential application of such technique in cementing fine dust particles and plugging cracks on the soil surface. The key component is close collaboration between Microbiology and Geotechnical Engineering. The research plan includes: (1) bench-scale biological laboratory study, (2) geotechnical laboratory experiments to identify the optimum design of dust suppression, and (3) pilot-scale field implementation for the validation of the developed microbial method of dust suppression. The intellectual merit of this research is to introduce a new, advanced and innovative approach for dust suppression that is environmentally safe and friendly. The success of this study may provide an important inroad for many future interdisciplinary efforts between Microbiology and Geotechnical Engineering that are still in infancy. Many such areas are left to be explored including the expedition of soil consolidation, improvement of extremely soft soils, reduction of soil permeability, containment of contaminated aquifers, etc., using microbial techniques. The broader impacts resulting from this study will be immediate and substantial due to the fact that the development of environmentally safe but effective methods of dust suppression has been one of the most prime interests among many scientists and engineers. The South Dakota Department of Transportation, which will participate in this research, plans to disseminate the research results throughout South Dakota through its Local Transportation Assistance Program. Eventually, the dissemination is expected to reach the entire transportation community in US and abroad. The Rapid City Landfill Office will also participate and plan to expand the microbial dust suppression technique for the arrest or reduction of fugitive dust particles associated with the municipal landfill operations. In addition, with additional supplemental funding from NSF REU program, underrepresented students will be recruited and actively participate in the project. These students will be encouraged to participate in hands-on experiments and analysis and assembly of data. They can contribute their knowledge to the improvement in dust suppression inside the Indian Reservations. The results of this study will be published in technical journals and conference proceedings. The study results will also be made available through the Internet website for easy access by interested scientists and engineers. Dissemination of data to the public will also be made through a variety of media infrastructure to enhance public interests and awareness of the role of microorganisms in natural environment.

这项研究的主要目的是利用一种新的微生物技术来抑制粉尘。首席调查员对混凝土和结构裂缝的微生物修复以前和正在进行的研究的结果确定了这种技术在胶结微尘颗粒和堵塞土壤表面裂缝方面的潜在应用。微生物学和岩土工程之间的密切合作是关键组成部分。研究计划包括：(1)实验室规模的生物研究，(2)确定最佳抑尘设计的岩土实验室实验，以及(3)验证所开发的微生物抑尘方法的中试现场实施。这项研究的学术价值在于引入了一种新的、先进的、创新的、安全和环保的抑尘方法。这项研究的成功可能会为微生物学和岩土工程之间的许多未来跨学科努力提供一个重要的途径，这些努力仍处于起步阶段。许多这样的领域还有待探索，包括利用微生物技术探索土壤固结、改良极软土壤、降低土壤渗透性、遏制受污染的含水层等。这项研究产生的更广泛的影响将是直接和重大的，因为开发环境安全但有效的抑尘方法一直是许多科学家和工程师最主要的兴趣之一。南达科他州交通部将参与这项研究，计划通过其当地交通援助计划在整个南达科他州传播研究成果。最终，这一传播预计将到达美国和国外的整个运输界。快速城市垃圾填埋场办公室也将参与并计划扩大微生物粉尘抑制技术，以阻止或减少与城市垃圾填埋场作业有关的逃逸粉尘颗粒。此外，在NSF REU计划的额外补充资金下，将招募代表人数不足的学生并积极参与该项目。这些学生将被鼓励参与动手实验以及数据的分析和汇编。他们可以为改善印第安人保留地内的尘埃抑制贡献自己的知识。这项研究的结果将发表在技术期刊和会议记录上。研究结果亦会在互联网上公布，方便有兴趣的科学家和工程师查阅。此外，亦会透过不同的媒体基础设施向公众发放数据，以提高公众对微生物在自然环境中的角色的关注和认识。