Anaerobic ammonia oxidation

Greenhouse gas emission from solid disposal

Electrochemical advanced oxidation

aerobic compost of organic waste

Ph.D.: Environmental Engineering, Institute of Urban Environment, CAS, China, 2009-2014

Dissertation: Greenhouse Gas Emitted from Landfills: Main Sources, Influencing Factors and N₂O Emission Mechanisms 

Supervisor: Prof. Dr. Shaohua Chen

B.S.: Environmental Engineering, School of Environmental Science and Engineering, Shandong University, China, 2005-2009

2018.01 till now, Institute of Urban Environment, Chinese Academy of Sciences, Associated Professor

2014.07-2017.12, Institute of Urban Environment, Chinese Academy of Sciences, Assistant Professor

1. Ruili Yang, Xiaojun Wang*, Yan Guo, Zhaoji Zhang and Shaohua Chen*, Evaluation of Anammox pathway recovery after high COD loading using water quality, molecular biology and isotope labelling analysis, Bioprocess and Biosystems Engineering, Accepted.

2. Xiaojun Wang, Ruili Yang, Yan Guo, Zhaoji Zhang, Chih Ming Kao, Shaohua Chen*, Investigation of COD and COD/N ratio for the dominance of anammox pathway for nitrogen removal via isotope labelling technique and the relevant bacteria, Journal of Hazardous Materials, 2019, 366, 606-614.

3. Xiaojun Wang, Ruili Yang, Zhaoji Zhang, Junbin Wu, Shaohua Chen*, Mass balance and bacterial characteristics in an in-situ full-scale swine wastewater treatment system occurring anammox process, Bioresource Technology, 2019, 292, 122005.

4. Xiaojun Wang, Chengsong Ye, Zhaoji Zhang, Yan Guo, Ruili Yang, Shaohua Chen*, Effects of temperature shock on N₂O emissions from denitrifying activated sludge and associated active bacteria, Bioresource Technology, 2018, 249: 605-611.

5. Xiaojun Wang, Mingsheng Jia, Chengliang Zhang, Shaohua Chen*, Zucong Cai*, Leachate treatment in landfills is a significant N₂O source, Science of the Total Environment, 2017, 596-597: 18-25.

6. Xiaojun Wang, Songqing Pan Zhaoji Zhang, Xiangyu Lin, Yuzhen Zhang, Shaohua Chen*, Effects of the feeding ratio of food waste on fed-batch aerobic composting and its microbial community, Bioresource Technology, 2017, 224: 397-404.

7. Xiaojun Wang，Mingsheng Jia，Han Zhang，Songqing Pan，Chih Ming Kao，Shaohua Chen*, Quantifying N₂O emissions and production pathways from fresh waste during the initial stage of disposal to a landfill, Waste Management, 2017, 63: 3-10.

8. Xiaojun Wang, Mingsheng Jia, Han Zhang, Songqing Pan, Chih Ming Kao, Shaohua Chen*, A comparison of CH₄, N₂O and CO₂ emissions from three different cover types in a municipal solid waste landfill, Journal of the Air & Waste Management Association, 2017, 67(4): 507-515.

9. Xiaojun Wang, Mingsheng Jia, Xiaohai Chen, Ying Xu, Xiangyu Lin, Chih Ming Kao, Shaohua Chen*, Greenhouse gas emissions from landfill leachate treatment plants: A comparison of young and aged landfill, Waste Management, 2014, 34(7): 1156-1164.

10. Xiaojun Wang, Xiaoru Yang, Zhaoji Zhang, Xin Ye, Chih Ming Kao, Shaohua Chen*, Long-term effect of temperature on N₂O emission from the denitrifying activated sludge, Journal of Bioscience and Bioengineering, 2014, 117(3): 298-304.

11. Yuying Wang, Zhaoji Zhang, Ling Qiu, Yan Guo, Xiaojun Wang, Xiaojing Xiong, Shaohua Chen*, Effect of temperature downshifts on biological nitrogen removal and community structure of a lab-scale aerobic denitrification process, Biochemical Engineering Journal, 2015, 101: 200-208.

12.Xin Ye, Zhilong Ye, Yaoyin Lou, Songqing Pan, Xiaojun Wang, Ming Kuang Wang, Shaohua Chen*, A comprehensive understanding of saturation index and upflow velocity in a pilot-scale fluidized bed reactor for struvite recovery from swine wastewater, Powder Technology, 2016, 295: 16-26.

1. Biological nitrogen removal from wastewater: focusing on both heterotrophic and autotrophic biological nitrogen removal processes. The Anammox (Anaerobic Ammonium oxidation) reactors have been set-up from lab-scale to full-scale. Interspecies relationship between anammox and denitrifying bacteria is still working on from the aspects of contribution to N removal by isotope labelling method and molecular biological analysis, aming to supply as a reference for practical application. 

2. Greenhouse gas emissions in waste sector: involved in GHG emission hotspots in landfill reservoirs and leachate treatment system, to investigate the relevant microbiological mechanisum and supply data for IPCC.

3. Aerobic compost for organic waste: focusing on optimizing operating conditons for practical application.

1. Xiaojun Wang, “How does the organic matter influence nitrogen removal in an Anammox reactor? Absolute concentration may play a more important role”, IWA World Water Congress & Exhibition, Brisbane, Astralia, October 09-14, 2016. (Poster)

2. Xiaojun Wang, “Greenhouse gas emissions from three different cover types in a municipal solid waste landfill”, 3^rd International Conference on Final Sink ‘From Product Design to Clean Cycles and Safe Final Sinks’, Taipei, Taiwan, August 23-26, 2015. (Poster)

3. Xiaojun Wang, “A comparison of CH₄, N₂O and CO₂ fluxes from three different types of cover material in a municipal solid waste landfill”, 2^nd Symposium of Asian Regional Branch of International Waste Working Group, Shanghai China, April 12-15, 2015. (Oral presentation)

4. Xiaojun Wang, “Effect of temperature on N₂O emission from denitrifying activated sludge: from the aspects of nosZ gene transcription and kinetics”, Urban Environmental Pollution, Amsterdam, the Netherlands, June 17-20, 2012. (Poster)