深圳大学西丽校区

学术讲座

【化学与环境工程学院】学术讲座(八):Dissecting Anaerobic Digestion Microbiome

2019年03月14日

Dissecting Anaerobic Digestion Microbiome

主讲人: Wen-Tso  Liu

时间: 2019年3月18上午10:00

地点: 深圳大学西丽校区B1-420会议室

 

报告人简介:

Prof. Liu is the Arthur C. Nauman Endowed  Professor of Environmental Engineering & Science program at the Department  of Civil and Environmental Engineering at the University of Illinois at  Urbana-Champaign. Prior to joining UIUC in 2008, Dr. Liu served as a faculty at  National Central University, Taiwan (1998-01) and at National University of  Singapore (2001-08). His research focuses on "water microbiome" that describes  the ecological roles of microbes in different water systems including watershed,  drinking water systems, and wastewater treatment and reclamation systems. In  studying water microbiome, the greatest scientific challenges are to fully  understand the role of microbes and correlate the findings with comprehensive  metadata (i.e., physical, chemical, and geological data) in individual water  systems. The knowledge can be further used to improve water cycling within the  natural and engineered systems, and to protect the public health. Dr. Liu has  received several awards, including the Asian Young Biotechnologist Prize (2005)  and the IWA-ISME Biocluster Award Grand Prize (2018). He serves a member of the  editorial board for several leading journals in Environmental Microbiology such  as the ISME journal by the publisher of Nature and Frontiers in  Microbiology.

 

讲座摘要:

Methanogenic biological treatment or anaerobic  digestion (AD) processes have been widely used to treat and stabilize excessive  sludge wasted from activated sludge processes treating domestic wastewater as it  can produce biogas as an alternative energy. While AD processes can effectively  convert organic waste to CO2 and CH4, much of the microbial ecology remains  unclear. Specifically, we have rather limited understanding on the acid  degradation through syntrophic interaction between syntroph sand methanogens.  Also, we often observed many uncharacterized or uncultivated organisms without  knowing their functions in AD. What are these uncharacterized organisms doing in  AD (function)? Do they interact with those known syntrophs and methanogens to  achieve stable AD processes (interaction)? Clearly their contribution in AD  warrants further investigation. My presentation will provide insights into these  fundamental questions through the use of high-throughput DNA sequencing  technologies. I first share findings on how the digestion efficiency currently  achieved at a Wastewater Reclamation Plant can be explained through the analysis  of microbial populations in the feed and the AD. These findings further serve as  a basis to investigate/compare AD microbiome across different treatment plants  at different continents to better define AD microbiome. Last, I will share the  summary of an ongoing investigation of AD through a large-scale metagenomics  analysis.

 

欢迎有兴趣的师生参加!