氨气(NH3),亚硝酸气体(HONO),以及氮氧化物(NOx)等含氮气体是大气中重要的活性物质,对区域空气质量、气候和生态系统有重要影响。但是,活性氮气体的大气化学过程和来源尚不清楚,缺乏经济有效的技术和手段应对日益增长的活性氮气体排放。
曾阳课题组针对上述问题,建立活性氮气体直接排放源的稳定同位素特征源谱,用于稳定同位素技术解析不同直接排放源对大气活性氮气体的贡献;研究主要排放源的活性氮气体产生机制和驱动因素,开发活性氮气体减排和回收利用技术。
Ammonia (NH3), nitrous acid (HONO), and nitrogen oxides (NOx), among various nitrogen-containing gases, play a critical role as atmospheric components with significant impacts on regional air quality, climate patterns, and ecosystems. However, our understanding of the atmospheric chemistry processes and sources of reactive nitrogen gases remains limited, and we currently lack cost-effective technologies to address the escalating emissions of these gases.
In response to these challenges, Dr. Zeng's research team has undertaken several initiatives. They have established stable isotope characteristics and source profiles for the direct emissions of reactive nitrogen gases. Utilizing these stable isotope techniques, the team dissects the contributions of different direct emission sources to atmospheric reactive nitrogen gases. Additionally, the group delves into the mechanisms and driving factors responsible for the production of reactive nitrogen gases originating from major emission sources. Simultaneously, they are actively involved in the development of technologies aimed at reducing and recovering these gases.
(13) 吕雪梅.华北典型农田和畜禽场环境大气中活性氮化学组成和浓度变化特征.中国生态农业学报(中英文).2020 (28):1043
(22) 曾阳.Improving composting as a post-treatment of anaerobic digestate.Bioresource technology.2016
(29) 曾阳.Improving composting as a post-treatment of anaerobic digestate.Bioresource technology.2016
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