CAREER: Molecular mechanisms and metabolic modeling of N2O and NO emission fluxes from biological nitrogen removal reactors

0846650 （Chandran）本项目将在分子机制和代谢模型水平上表征废水处理厂的气态一氧化氮（NO）和氧化亚氮（N2O）排放。这种排放物对空气质量有害。例如，一氧化二氮对温室效应的影响大约是等量二氧化碳的300倍。NO可以直接消耗大气臭氧，并迅速转化为NO2，而NO2是烟雾的前兆。要解决的关键问题是：在限制N2O和NO排放方面，使一组生物脱氮操作条件比其他操作条件更具环境可持续性的潜在分子机制是什么？该研究将被纳入纽约哈莱姆少数民族学校的高中教育中，PI还将指导纽约市理科高中的学生。此外，暑假期间，PI的实验室将接待高中科学教师，PI的后续客座讲座和高中学生在学年期间的访问。

0846650 (Chandran)This project will characterize gaseous nitric oxide (NO) and nitrous oxide (N2O) emissions from wastewater treatment plants, at the molecular mechanism and metabolic modeling levels. Such emissions are deleterious to air quality. For example, the greenhouse effect impact of N2O is about three hundred times that of an equal amount of carbon dioxide. NO can directly deplete atmospheric ozone and is rapidly converted to NO2, which is a precursor to smog. The key question to be addressed is: What are the underlying molecular mechanisms that render one set of biological nitrogen removal operating conditions more environmentally sustainable than others, in terms of limiting N2O and NO emissions? The research will be integrated into high school education in minority oriented schools in Harlem, NY, and the PI will also mentor students from science high-schools in New York City. Additionally, high-school science teachers will be hosted in the PI's laboratory during the summer with follow-up guest lectures by the PI and visits from high school students during the school year.