Research

Research Focuses

• Biotransformation and bioremediation of emerging organic pollutants in water

• Aquatic microbial ecology and biogeochemistry, especially phosphorus and nitrogen cycle in natural sediments

• Pathways and mitigation of nitrous oxide production during biological nitrogen removal

• Process control of biological nitrogen and phosphate removal in urban wastewater

Publications

• Su, Q.*, Domingo-Félez, C., Jensen, M., Zhi M., Xu, B., Ng, H.*, Smets, B.F., 2024. Formation and fate of reactive nitrogen during biological nitrogen removal: important yet often ignored aspects of the nitrogen cycle. Environmental Science & Technology. 55, 22480–22504. *Corresponding Author

• Su, Q.*, Schittich, A.R., Jensen, M.M., Ng, H., Smets, B.F., 2021. Role of Ammonia Oxidation in Organic Micropollutant Transformation during Wastewater Treatment: Insights from Molecular, Cellular, and Community Level Observations. Environmental Science & Technology. 55, 2173–2188. *Corresponding Author

• Su, Q., Domingo-Félez, C., Jensen, M., Smets, B.F., 2019. Abiotic nitrous oxide (N2O) production is strongly pH dependent, but contributes little to overall N2O emissions in biological nitrogen removal systems. Environmental Science & Technology. 53(7), 3508-3516.

• Su, Q.*, Albani, G., Sundberg, J.F., Nielsen, T.G., Thamdrup, B., Jensen, M.M.*, 2022. Microbial Bioremediation of Produced Water under Different Redox Conditions in Marine Sediments. Water Research. *Corresponding Author

• Su, Q., Domingo-Félez, C., Zhen Z., Blum, J., Jensen, M., Smets, B.F., 2019. The effect of pH on N2O production in intermittently-fed nitritation reactors. Water Research. 156, 223-231.

• Su, Q., Ma, C., Domingo-Félez, C., Kiil, A.S., Thamdrup, B., Jensen, M.M., Smets, B.F., 2017. Low nitrous oxide production through nitrifier-denitrification in intermittent-feed high-rate nitritation reactors. Water Research. 123, 429-438.

• Su, Q., Huang, S., Zhang, H., Wei, Z., Ng, H., 2023. Abiotic transformations of sulfamethoxazole by enzymatically produced reactive nitrogen species in biological nitrogen removal systems: Kinetics, mechanisms and pH effects. Journal of Hazardous Materials. 444, 130328.

• Xu, B., Su, Q.*, Huang, S., Yang, Y., Shi, X., Choo K., Ng, H.*, Lee C., Quorum Quenching in Membrane Bioreactors for Fouling Retardation: Complexity Provides Opportunities. Environmental Science & Technology. 58, 30, 13171–13193 *Corresponding Author

• Su, Q., Andersen. H.R., Bazylinski, D., Jensen, M.M., 2023. Effect of oxic and anoxic conditions on intracellular storage of polyhydroxyalkanoate and polyphosphate in Magnetospirillum magneticum strain AMB-1. Frontiers in Microbiology. 14.

• Blum, J.#, Su, Q.#, Ma, Y., Valverde-Pérez, B., Domingo-Félez, C., Jensen, M., and Smets, B.F., 2018. The pH dependency of N-converting enzymatic processes, pathways and microbes: effect on net-N2O production. Environmental Microbiology. 20(5), 1623–1640. #Co-first Authors

• Xu, B., Yang, Y., Zhang, H., Huang, S., Su, Q.*, Naddeo, V., Ng, H.*, Significance of Integrated Therapy of Biological and Physical Cleaning for Biofouling Control and Energy Saving in AnMBRs. Chemical Engineering Journal. 489, 151096. *Corresponding Author

• Tian, H., Li, Y., Chen, H., Zhan, J., Hui, M., Xu, X., Su, Q.*, Smets, B.F., 2023. Aerobic biodegradation of quinoline under denitrifying conditions in membrane-aerated biofilm reactor. Environmental Pollution. *Corresponding Author

• Zeng, C.#, Su, Q.#, Peng, L., Sun, L., Zhao, Q., Diao, X., Lu, H., 2021. Elemental sulfur-driven autotrophic denitrification for advanced nitrogen removal from mature landfill leachate after PN/A pretreatment. Chemical Engineering Journal. 410, 128256. #Co-first Authors

• Wang, S., Wang, Y., Li, P., Wang, Li., Su, Q., Zuo., J., 2022. Development and characterizations of hydrogenotrophic denitrification granular process: nitrogen removal capacity and adaptability. Bioresource Technology. 363, 127973.

• Wang, S., Yu, H., Su, Q., Zuo., J., 2021. Exploring the role of heterotrophs in partial nitritation-anammox process treating thermal hydrolysis process-anaerobic digestion reject water. Bioresource Technology. 341, 125762.

• Wu, J., Zhan M., Chang Y., Su, Q., Yu, Ran., 2018. Adaption and recovery of Nitrosomonas europaea to chronic TiO2 nanoparticle exposure. Water Research. 147, 429-439.

Manuscripts in Preparation

• Su, Q.*, Song, B., Palomo, A., Reitzel., K, Thamdrup, B., Jensen, M.M.*, Intracellular Inclusions of Magnetotactic Bacteria in Natural Sediments: Characteristics, Metabolisms, and Biogeochemical Importance

• Su, Q., Jensen, M.M.*, Smets, B.F., The effect of pH on N2O production in an intermittently-fed high-rate nitritation reactor: insights from transcriptomics and isotopic analysis.