报告题目 一：Water and Resource Recovery from Wastewater Treatment
报告 人：Hang-Sik Shin 教授
Water Research主编 韩国高等研究院（KAIST）
报告题目 二：Smart Wastewater System for Clean Water and Energy
报告 人：Soryong Chae 助理教授、博士
主 持：孟凡刚 教授
Hang-Sik Shin is an Honorable Professor at the Department of Civil and Environmental Engineering KAIST, Daejeon Korea. He graduated Seoul National University in 1971 with BE degree of Civil Engineering. He got a Ph.D. degree in environmental engineering at Penn.State University in 1982. He was the President of Korea Society of Environmental Engineersin 2002 – 2004 and now editor of Water Research journal.
He was awarded with The Order of National Service Merit, Magnolia from Korean Government for his contribution to the water environment.
His research areas include anaerobic digestion, Biological Nutrient Removal, water reuse, and MBR, published more than 100 international journal papers.
Dr. Chae and his research group at the University of Cincinnati has interests in the development of “Smart Wastewater System”, which is a multi-disciplinary and integrated technology pursuing zero carbon footprint with energy harvesting and resource recovery from wastewater. In nutrient-sensitive estuaries, wastewater treatment plants (WWTPs) are required to implement more advanced treatment methods in order to meet increasingly stringent effluent guidelines for organic matter and nutrients. To comply with current and anticipated water quality regulations and to reduce the volume of produced sludge, we have successfully developed a vertical membrane bioreactor (VMBR) that is composed of anoxic (lower layer) and oxic (upper layer) zones in one reactor. Since 2009, the VMBR has been commercialized under the trade-name of DMBRTM for recycling of municipal wastewater.
Recently, trace organic compounds such as phenolic compounds, pharmaceuticals and personal care products (PPCPs), and endocrine disrupting compounds (EDCs) in water resources have been recognized as significant global problems in water supply. Dr. Chae’s group has successfully developed carbon nanomaterials-based membranes for removal of trace organic compounds from wastewater. Membrane filtration is one of the most reliable methods for wastewater treatment, however wider application is limited due to biofouling caused by the accumulation of microorganisms on the membrane’s surface. We recently developed a carbon nanotubes (CNT) membrane with self-cleaning properties. The CNT membrane was fabricated using drawable CNTs that provide the electrically conductivity/resistivity to the membrane. Surface temperatures exceeding 100 oC are reachable in under 10 s with applying less than 25 V potential and consuming 2-3 W of power. This temperature is above of what most microbial life, bacteria and viruses can handle. When employing this membrane, filtered Escherichia coli collected on its surface were successfully annihilated within one minute.
Lastly, we fabricated a porous and granular adsorptive material for removal of phosphate from wastewater. Magnesium carbonate was combined with cellulose in varying weight ratios to synthesize pellets, which were then calcined to create internal surface area. Using cellulose and subsequent calcination created additional internal surface area for adsorption of phosphate and suggests that granular materials can be modified for efficient recovery of phosphorus from water.