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Gefu Zhu
Highest Education:
1799 Jimei Road, Xiamen
Zip Code:

Education and Appointments:

1. Ph. D. Harbin Institute of Technology, China, Municipal Engineering, 2007.
2. M.S. Harbin Institute of Technology, China, Environmental Engineering, 2004.
3. B.S. Jilin Jianzhu University, China, Water Supply and Sewerage Engineering, 2001.
4. 2016.1-present, Professor, Institute of Urban Environment, Chinese Academy of Sciences (CAS), China.
5. 2009.5-2015.9, Associate professor, Institute of Urban Environment, Chinese Academy of Sciences (CAS), China.
6. 2007.8-2009.4, Assistant professor, Institute of Urban Environment, Chinese Academy of Sciences (CAS), China.
7. 2001.6-2002.8, Assistant Engineer, Changchun water (group) CO., LTD., China.

Main academic contributions:

(1) The physiological and ecological characteristics of syntrophic fatty acid oxidation bacteria (SFOB) in anaerobic system were defined preliminarily, new anaerobic waste biotransformation technology was build up to increase waste removal rate and improve the stability of anaerobic system, and the degradation pathway was also analyzed.
(2) Based on the physiological and ecological characteristics of SFOB, the new synchronization process for carbon, nitrogen and sulfur removal was established with combination of the characteristics of sulfate-reducing bacteria and denitrifying bacteria.
(3) To break through the limitation of slow methanogens growth rate, low anaerobic biological treatment efficiency and system operation stability, the new anaerobic waste treatment technology with syntrophic electricity-producing bacteria and fatty acid oxidation bacteria serving as dominant bacteria was developed. The bacteria characteristic in this system was studied.
(4) Focusing on the differences between dry and wet anaerobic fermentation, including different degradation pathway of more than 3 carbon volatile fatty acid and different interspecies electron transformation, a new dry and wet anaerobic fermentation technology was developed and engineering control strategies were established for increasing waste treatment efficiency and improving system operation stability by strengthening the function of specific bacteria.
(5) For breaking through the bottleneck problem of bio-hydrogen production from anaerobic fermentation, a new technology of cascade utilization of organic matter for hydrogen production was developed.

Research Interest:

My work focuses on environmental biotechnology and biological processes of waste treatment. My research interests include physiological ecology and molecular ecology of anaerobic bio-treatment system, bio-treatment process of high strength and hard-degraded organic industrial wastewater, R&D of novel wastewater treatment technique and equipment, biohydrogen production technology, Bioelectrochemical stimulated technology for recalcitrant compounds biodegradation, Organic wastes (excess sludge, waste biomass, etc.) cascade utilization to recover bioresources and/or bioenergy.

Selected Publications:

(1) Xiaofang Pan, Lixin Zhao, Chunxing Li, Irini Angelidaki, Nan Lv, Jing Ning J, Guanjing Cai, Gefu Zhu*. Deep insights into the network of acetate metabolism in anaerobic digestion: focusing on syntrophic acetate oxidation and homoacetogenesis. Water Research, 190 (2021), 116774.

(2) Ruming Wang, Nan Lv, Chunxing Li, Guanjing Cai, Xiaofang Pan, Yanlin Li, Gefu Zhu*. Novel strategy for enhancing acetic and formic acids generation in acidogenesis of anaerobic digestion via targeted adjusting environmental niches. Water Research, 193 (2021), 116896.

(3) Tao Wang, Gefu Zhu*, Bin Kuang, Jianbo Jia, Changyu Liu, Guanjing Cai, ChunxingLi. Novel insights into the anaerobic digestion of propionate via Syntrophobacter fumaroxidans and Geobacter sulfurreducens: process and mechanism. Water Research, (2021), 117270.

(4) Tao Wang, Gefu Zhu*, Chunxing Li, Mingdian Zhou, Ruming Wang, Junjie Li, Anaerobic digestion of sludge filtrate using anaerobic baffled reactor assisted by symbionts of short chain fatty acid-oxidation syntrophs and exoelectrogens: Pilot-scale verification. Water Research, 170 (2020), 115329.

 (5) Tao Wang, Chunxing Li, Lina Wang, Mingdian Zhou, Jing Ning, Xiaofang Pan, Gefu Zhu*, Anaerobic digestion of sludge ?ltrate assisted by symbionts of short chain fatty acid-oxidation syntrophs and exoelectrogens: Process performance, methane yield and microbial community. Journal of Hazardous Materials, 384 (2020), 121222.

(6) Xiaofang Pan, Hu Li, Lixin Zhao, XiaoruYang, Jianqiang Su, Shaoqing Dai, Jing Ning, Chunxing Li, Guanjing Cai, Gefu Zhu*. Response of syntrophic bacterial and methanogenic archaeal communities in paddy soil to soil type and phenological period of rice growth. Journal of Cleaner Production, 278 (2021), 123418.

(7) Xiaofang Pan, Nan Lv, ChunxingLi, Jing Ning, Tao Wang, Ruming Wang, Mingdian Zhou and Gefu Zhu*. Impact of nano zero valent iron on tetracycline degradation and microbial community succession during anaerobic digestion. Chemical Engineering Journal, 359(2019): 662-671.

 (8) Junjie Li, Chunxing Li, Lixin Zhao, Xiaofang Pan, Guanjing Cai, Gefu Zhu*. The application status, development and future trend of nano-iron materials in anaerobic digestion system. Chemosphere, 269 (2021), 129389.

(9) Guanjing Cai, Gefu Zhu*, Mingdian Zhou, Nan Lv, Ruming Wang, Chunxing Li, Junjie Li, Xiaofang Pan. Syntrophic butyrate-oxidizing methanogenesis promoted by anthraquinone-2-sulfonate and cysteine: distinct tendencies towards the enrichment of methanogens and syntrophic fatty-acid oxidizing bacteria. Bioresource Technology, 332 (2021), 125074.

(10) Guanjing Cai, Lixin Zhao, Tao Wang, Nan Lv, Junjie Li, Jing Ning, Xiaofang Pan, Gefu Zhu*. Variation of volatile fatty acid oxidation and methane production during the bioaugmentation of anaerobic digestion system: Microbial community analysis revealing the influence of microbial interactions on metabolic pathways. Science of the Total Environment, 754 (2021), 142425.

Supported Projects:

(1) 2015-2018 New anaerobic process and microbiological mechanism based on syntrophic fatty acids oxidizing bacteria and exoelectrogenic. Financially supported by National Nature Science Foundation of China. Project sponsor.
(2) 2013-2016 The mechanism of breaking fermentation barrier in the biohydrogen system and new process development. Financially supported by National Nature Science Foundation of China. Project sponsor.
(3) 2009-2012 Physiological ecology of hydrogen-producing acetogens bacteria in the fermentative bio-hydrogen process and its controlling strategy. Financially supported by National Nature Science Foundation of China. Project sponsor.