2018第四届能源,环境与地球科学国际会议
中国·西安 2018年12月17-19日
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截稿日期2018年8月20日
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会议日期2018年12月17-19日
演讲嘉宾

ICEEES2018演讲嘉宾信息如下:

Dr. Zhang Li, Professor
College of Environment and Energy Engineering, Beijing University of Technology, China

Biography: Dr. Zhang Li obtained her doctor degree in Kumamoto University, Japan in 2011. Since 2015, she had been an associate professor in Chinese Research Academy of Environmental Sciences. In 2017, she transferred to Beijing University of Technology and became a professor and a master supervisor. In recent 5 years, based on the National major scientific research plans such as "Major Science and Technology Program for Water Pollution Control and Treatment, National Key Technology Support Program, National Natural Science Funds Fund" and so on, composed of 3 research assistants and 10 graduate students, her research team focused on investigating high-rate nitrogen removal by Anaerobic ammonia oxidation (Anammox) process. They utilized combined techniques (spectroscopy, mass spectrometry, molecular biology and so on) to elucidate the distribution characteristics of microbial communities under different environmental conditions, and reveal their role in the process of nitrogen migration and transformation. She was awarded Second prize of Environmental Protection Technology Award (ranked eighth) in 2015; First prize of the excellent paper in academic annual meeting of Chinese Society For Environmental Sciences in 2015; "Outstanding young scholar" certificate issued by Japanese Society of Biology in 2012; Second prize of Environmental Protection Technology Award (ranked fifth) in 2018. She published nearly 50 research papers, among which nearly 40 papers belong to SCI. 8 item patent was authorized. And also 5 monographs were published. She also work as a peer reviewer of some journals, including Journal of Bioscience and Bioengineering, Bioresource Technology, Estuarine, Coastal and Shelf Science, Ecological Engineering, Science of the Total Environment and so on.

Topic: Composition Characterization and Transformation Mechanism of Refractory Dissolved Organic Matter from an Anammox Reactor

Abstract: Landfill leachate from sanitary landfill sites contains numerous types of dissolved organic matter (DOM), including mainly volatile fatty acids and humic substances. This study applied combined spectroscopy techniques to assess refractory DOM (rDOM) compositional characteristic and investigated its transformation mechanisms during the treatment of mature landfill leachate by anammox process. A novel rDOM metabolism mechanism was proposed in this study for the first time. A stable, high nitrogen removal rate of 5.95 kg N/m3/day and a rDOM conversion efficiency of 51% were achieved in anammox reactor (AR). In additionally, the initial rDOM removal was closely related to sludge adsorption, with the adsorption force mainly originating from electrostatic interaction and hydrophobicity. As the operating time increased, the removal mechanism of rDOM in the AR changed from adsorption to adsorption-biodegradation and finally stabilized. Furthermore, Anaerolineaceae, associated with the hydrophobic reaction, were the primary degraders for the rDOM and Candidatus Kuenenia dominated the nitrogen consumption. rDOM removal efficiency was suggested to be increased by a moderate enhancement of Anaerolineaceae content in the AR.

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