研究方向包括：

    1. 新型污水处理技术的开发与应用

    2. 氮/铁循环微生物在污水处理中的功能及应用

    3. 剩余污泥资源化技术的开发与应用

    4. 高盐废水分盐回收资源化技术

近5年主持与参与项目：

1. 国家自然科学基金（面上项目），铁自养反硝化菌群进行铁氨氧化作用的机制及应用研究，2023.01-2026.12，主持，在研；

2. 国家自然科学基金（青年项目）， 氨氧化菌对亚硝酸氧化菌和厌氧氨氧化菌代谢和丰度的调节效应研究，2020.01-2022.12，主持，结题；

3. 国家自然科学基金（重大科研仪器研制项目），电催化微流控化学需氧量COD分析仪的研制，2021.01-2025.12，参与，在研；

4. 国家地方联合工程实验室（开放课题），铁自养反硝化技术修复砷污染地下水过程中的铁成矿机制研究，2023.01-2024.12，主持，结题；

5. 企业委托技术合作研发项目（横向课题），垂直电泳用于无机盐制备酸碱（混合酸混合碱）技术研究，2022.01-2025.12，主持，在研.

近5年发表研究论文：

(1) Zhang Hong-Bin, Wang He-Fei, Liu Jia-Bo, Bi Zhen, Jin Ruo-Fei, Tian Tian*. Anaerobic ammonium oxidation coupled to iron(III) reduction catalyzed by a lithoautotrophic nitrate-reducing iron(II) oxidizing enrichment culture. The ISME Journal, 2024, 18(1):wrae149.

(2) Zhang Jing-Xiao, Li Yu-Sheng, Du Wen-Jie, Tian Tian*, Xuan Liang, Yu Han-Qing*. Driving force shapes the biocake characteristics in membrane-based bioreactors. Water Research, 2025, 268:122592.

(3) He Bang-Hui, Wang Hui-Xuan, Jin Ruo-Fei, Tian Tian*, Zhou Ji-Ti. Enhanced-nitrogen removal through Fe(III)-triggered partial dissimilatory nitrate reduction to ammonium coupling with anammox in anammox bioreactor. Bioresource Technology, 2024, 408:131195.

(5) Liu Jia-Bo, Zhang Hong-Bin, Wang He-Fei, He Bang-Hui, Wang Hui-Xuan, Jin Ruo-Fei, Tian Tian*. Remediation of arsenic- and nitrate-contaminated groundwater through iron-dependent autotrophic denitrifying culture. Environmental Research, 2024, 257:119239.

(5) Tian Tian, Zhou Ke, Li Yu-Sheng, Liu Dong-Feng, Yu Han-Qing*. Recovery of iron-dependent autotrophic denitrification activity from cell-iron mineral aggregation-induced reversible inhibition by low-intensity ultrasonication, Environmental Science & Technology, 2022, 56(1):595-604.

(6) Tian Tian, Zhou Ke, Li Yu-Sheng, Liu Dong-Feng, Yu Han-Qing*. Phosphorus recovery from wastewater prominently through a Fe(II)-P oxidizing pathway in the autotrophic iron-dependent denitrification process. Environmental Science & Technology, 2020, 54(18):11576-11583.

(7) Tian Tian, Zhou Ke, Xuan Liang, Zhang Jing-Xiao, Li Yu-Sheng, Liu Dong-Feng, Yu Han-Qing*. Exclusive microbially driven autotrophic iron-dependent denitrification in a reactor inoculated with activated sludge. Water Research, 2019, 170:115300.

(8) Li Yu‐Sheng, Li Bing‐Bing, Tian Tian*, Yu Han‐Qing*. Quorum sensing unveils the sludge floccule‐assisted stabilization of aerobic granules in granule‐dominated sequencing batch reactors. Biotechnology and Bioengineering, 2022, 120(2):444-455.

(9) Tian Tian, Yu Han-Qing*. Iron-assisted biological wastewater treatment Synergistic effect between iron and microbes. Biotechnology Advances, 2020, 44:107610.

(10) Tian Tian, Yu Han-Qing*. Denitrification with non-organic electron donor for treating low CN ratio wastewaters. Bioresource Technology, 2020, 299: 122686.

(11) Wen Han-Quan, Chen Guan-Lin, Li Yu-Sheng, Tian Tian*, Pan Yuan, Yu Han-Qing*. An inconvenient impact: Unveiling the overlooked differences in crystalline forms of iron (hydro)oxides on anaerobic digestion. Water Research X, 2025, 26:100286.

(12) Zheng Qiang, Ji Qiu-Yan, Tian Tian*, Jin Ruo-Fei, Liu Ze, Fu Wang, Zhou Ji-Ti. Preparation of ceramsite using solid residue from anaerobic digestion of waste activated sludge and its enhancing effect on catalytic ozonation. Environmental Research, 2024, 243:117745.

(13) Lu Long-Fei, Tian Tian*, Jin Ruo-Fei, Ji Qiu-Yan, Zhou Ji-Ti*. Recovery of calcium and sulphur from phosphogypsum with zero by-product generation using a preparative vertical-flow electrophoresis system. Separation and Purification Technology, 2024, 331:125579.

(14) Li Xin, Tian Tian*, Cui Tian-Tian, Liu Bao-Cun, Jin Ruo-Fei, Zhou Ji-Ti*. Alkaline-thermal hydrolysate of waste activated sludge as a co-metabolic substrate enhances biodegradation of refractory dye reactive black 5. Waste Management, 2023, 170:40-49.

(15) Zhang Jing-Xiao, Huang Bao-Cheng, Xu Qing-Sheng, Li Yu-Sheng, Tian Tian*, Yu Han-Qing*. Unexpected alleviation of transparent exopolymer particles-associated membrane fouling through interaction with typical organic foulants. Journal of Membrane Science, 2021, 636:119554.

(16) Zhang Jing-Xiao^#, Tian Tian^#, Du Wen-Jie, Guan Yan-Fang, Wang Yun-Jie, Li Yu-Sheng*, Yu Han-Qing*. Adopting vibration to alleviate the solute buildup and membrane fouling in a forward osmosis system. Journal of Cleaner Production, 2021, 323:129202.

探索环境工程中的关键科学问题。