研究方向：

水处理生物技术及其微生物生态学机制、淡水生态系统宏病毒组学研究、水-气界面温室气体排放及其微生物组学研究、大河生态系统中水-沉积物微生物地理学研究

科研项目：

国家自然科学基金青年科学基金项目，长江变形菌视紫质多样性分布及其环境适应性策略研究，2020.1-2022.12，主持

国家自然科学基金创新研究群体项目，河流多物质相互作用及其通量效应，2018.1-2023.12，参与

国家自然科学基金重点项目，南水北调中线工程水源区硝酸盐氮污染形成的生态学机制及其调控，2016.1-2020.12，参与

国家自然科学基金青年科学基金项目，兼具异养硝化-好氧反硝化和除磷功能菌株的代谢机理研究，2013.1-2015.12，参与

代表论著：

(1) Liu, T.; Liu, S.*; He, S.; Tian, Z.; Zheng, M. Minimization of N2O Emission through Intermittent Aeration in a Sequencing Batch Reactor (SBR): Main Behavior and Mechanism. Water 2021, 13 (2), 210. https://doi.org/10.3390/w13020210.

(2) Zheng, M.; Zhou, N.; He, S.; Chang, F.; Zhong, J.; Xu, S.; Wang, Z.; Liu, T.* Nitrous Oxide (N2O) Emissions from a Pilot-Scale Oxidation Ditch under Different COD/N Ratios, Aeration Rates and Two Shock-Load Conditions. J. Environ. Manage. 2021, 280, 111657. https://doi.org/https://doi.org/10.1016/j.jenvman.2020.111657.

(3) Dang, C.; Xia, Y.; Zheng, M.; Liu, T.; Liu, W.; Chen, Q.; Ni, J.* Metagenomic Insights into the Profile of Antibiotic Resistomes in a Large Drinking Water Reservoir. Environ. Int. 2020, 136, 105449. https://doi.org/10.1016/j.envint.2019.105449.

(4) Liu, T.; Zhang, A. N.; Wang, J.; Liu, S.; Jiang, X.; Dang, C.; Ma, T.; Liu, S.; Chen, Q.; Xie, S.; Zhang, T.; Ni, J.* Integrated Biogeography of Planktonic and Sedimentary Bacterial Communities in the Yangtze River. Microbiome 2018, 6 (1), 16. https://doi.org/10.1186/s40168-017-0388-x.

(5) Liu, T.; Liu, S.; Zheng, M.; Chen, Q.; Ni, J.* Performance Assessment of Full-Scale Wastewater Treatment Plants Based on Seasonal Variability of Microbial Communities via High-Throughput Sequencing. PLoS One 2016, 11 (4), e0152998. https://doi.org/10.1371/journal.pone.0152998.

(6) Chen, Q.; Ni, J.*; Ma, T.; Liu, T.; Zheng, M. Bioaugmentation Treatment of Municipal Wastewater with Heterotrophic-Aerobic Nitrogen Removal Bacteria in a Pilot-Scale SBR. Bioresour. Technol. 2015, 183, 25–32. https://doi.org/10.1016/j.biortech.2015.02.022.

Zheng, M.; Tian, Y.; Liu, T.; Ma, T.; Li, L.; Li, C.; Ahmad, M.; Chen, Q.; Ni, J.* Minimization of Nitrous Oxide Emission in a Pilot-Scale Oxidation Ditch: Generation, Spatial Variation and Microbial Interpretation. Bioresour. Technol. 2015, 179, 510–517. https://doi.org/10.1016/j.biortech.2014.12.027.

(7) Yi, M., Fang, Y., Hu, G., Liu, S., Ni, J., & Liu, T*. (2021). Distinct community assembly processes underlie significant spatiotemporal dynamics of abundant and rare bacterioplankton in the Yangtze River. Frontiers of Environmental Science & Engineering, 16(6), 79. https://doi.org/10.1007/s11783-021-1513-4