Development of Novel Combined Treatment Technologies for Decontaminating Polluted Air

0229135 索里亚尔 1990年《清洁空气法修正案》的通过大大提高了人们对开发创新技术以解决当前污染问题和防止新污染问题的兴趣。本研究将侧重于开发一种适用于任何特定污染物或污染物混合物的联合处理方案（PSA/TBAB）。一个变压吸附（PSA）单元，然后滴流床空气生物过滤器（TBAB）单元，提出了在工业操作的不利条件下产生符合排放法规的流出物流。 本研究的主要目的是：1）研究污染物浓度波动、停用时间和污染物变化对TBAB性能的影响; 2）研究不同类型吸附剂对污染物的单一溶质和竞争平衡吸附机理;和3）研究PSA单元的操作加压和减压循环，其将在生物过滤器上产生恒定的负载条件并将提供99%以上的污染物去除。PSA单元可以用于多种目的，例如吸附和解吸的周期性循环，以抑制波动的污染物浓度对生物过滤器的影响;或者作为仅用于在生物过滤器的关闭时间期间去除污染物的吸附循环;或解吸循环仅在关闭期间如周末或假日期间用作生物过滤器的污染物进料。TBAB技术将对化学工业产生重大效益，因为化学工业必须进行废气处理以遵守《清洁空气法》。预计通过提高生物过滤工艺的性能，将显著降低污水处理成本。此外，在这项研究中获得的结果将通过在国家和国际会议上的演讲以及在同行评审的期刊上发表来传播，以提高对联合方案的科学和技术理解。在实验室获得的研究经验将通过开发基于发现的教学模块在课堂上复制，因此所有学生都可以分享经验。以问题为基础的学习，本科研究和研究为基础的教育将帮助学生发展批判性思维，解决问题，团队合作和沟通技巧。

0229135 Sorial The passage of the 1990 Amendments to the Clean Air Act significantly heightened the interest in the development of innovative technologies for solving current pollution problems and preventing new ones. This study will focus on development of a combined treatment scheme (PSA/TBAB) that is adaptable to any particular contaminant or mixture of contaminants. A pressure swing adsorption (PSA) unit followed by a trickle bed air biofilter (TBAB) unit is proposed for yielding an effluent stream complying with emission regulations during adverse conditions of industrial operations. The objectives of this research study are: 1) to study the influence of fluctuating contaminant concentration, periods of non-use, and change of contaminant on the performance of the TBAB; 2) to investigate the mechanism of single solute and competitive equilibrium adsorption on different types of adsorbents for the contaminants of concern; and 3) to investigate the operating pressurization, and de-pressurization cycles for the PSA unit that will yield constant loading conditions on the biofilter and will provide contaminant removal above 99%. The PSA unit can serve a number of purposes, such as periodic cycles of adsorption and desorption, to dampen the impact of fluctuating contaminant concentration to the biofilter; or as an adsorption cycle only for a contaminant removal during off-times of the biofilter; or a desorption cycle only to act as a contaminant feed to the biofilter during shut down periods such as weekends or holidays.The development of a combined PSA/TBAB technology will be of significant benefit to the chemical industry where off-gas treatment is necessary for complying with the Clean Air Act. It is anticipated that effluent treatment cost will be significantly reduced by enhancing the performance of the biofiltration process. Furthermore, the results obtained in this study will be disseminated by presentations at national and international conferences and by publication in peer refereed journals for enhancing scientific and technological understanding of the combinedscheme.The combined treatment technology of this research provides excellent case studies for both the undergraduate and graduate classes. Research experience gained in the laboratory will be replicated in the classroom by developing discovery-based teaching modules, so the experience can be shared by all of the students. Problem-based learning, undergraduate research and research-based education will help students develop critical thinking, problem-solving, teamwork and communication skills.