
Human lives in natural environment. In order for human’s life to be harmonized with nature, we should address various water-related science and engineering problems. Water & Ecosystems domain consists of (1) Hydro Science and Engineering that solves problems related to water resources, rainfall-runoff, river, and costal engineering and (2) Environmental Engineering that provides technical options to properly address the contamination of various environmental media.
Water & Ecosystems
Hydro Science and Engineering is a discipline on water, a necessity for life of human beings. In Korea, there occurs flooding events in summer monsoon season and chronic drought events every spring and winter. Therefore, it is very critical not only to properly distribute existing water resources and find new resources but also to secure and manage river function. Hydro Science and Engineering is, therefore, a practical discipline to develop effective methodologies to address the aforementioned issues and problems, which eventually contribute to national economic growth harmonized with natural, pleasant environment.
Members of Hydrology Lab are studying to find out fundamental principles lying on a variety of hydrologic phenomena. We have deep interests in analyzing water cycle processes such as rainfall, runoff, infiltration, and evapotranspiration. Advanced or improved methodologies derived from these studies can contribute to the efficient use of water resources.
At the Riverscape Dynamics Laboratory, we explore the basic nature of a river. We recognize a river as the key element for human civilization.Our research focus is on the spatio-temporal variability of stream flux (water and sediment) and the evolution of a river system (both network and catchment) over time.We pursue these fundamental quests in the context of the pending climatic and human-enforced environmental changes.
We investigate intricate coastal hydrodynamic processes (e.g. storm surge, tsunami, freak wave, rip current, coastal erosion, etc.) in the nearshore area and those impacts on coastal environments. Through the researches, we establish measures for preservation of coastal environments and propose standards for coastal structures.
We are studying on big-data generally collected from smart advanced meters (measuring devices) installed over water infrastructures such as water distribution system and urban drainage system. Smart water meters are measuring and sending various hydro-variables (pressure, flows, water level, and water quality variables) remotely in real-time. Therefore, their data has big-data characteristics with high spatio-temporal resolution. Members in AWRE lab are developing novel and advanced methodologies to extract and analyze useful information from the big-data for effective and efficient decision making on water management and supply.
Water & Ecosystems
The ultimate goal of environmental engineering is to develop technical strategies as countermeasures for the contamination of air, water and soil, eventually improving environmental and human health. In an effort to address algal bloom associated with eutrophication in the surface water, our recent research focus lies in assessing and upgrading sewage water treatment processes. To manage municipal solid wastes, the pilot project to come up with the landfill design factors is underway, and diverse empirical approaches have been attempted to restore petroleum-polluted soil media. Further, research efforts have continually been made for the state-of-art water treatment processes to enable membrane filtration and catalytic oxidation.
Our research group focuses on unlocking the potential of light and ultrasound, the wave-based energy, for the Advance Oxidation Processes (AOPs) with high-efficiency energy utilization. To do so, our current research efforts are focused on developing an effective process by integrating different types of energy and oxidant source with ultrasound and light, and designing the nanocatalysts based on the catalytic mechanisms of ultrasound and light energy.
Our lab's primary research area involves the development of membrane integrated processes for environmental and industrial application. Prof. Hong's has actively participated in industrial applications such as ultrapure water production for semiconductor manufacturing, shale gas wastewater treatment, and corrosion control in drinking water distribution systems to enlarge the application of the membrane processes.
Prof. Park’s research group seeks to analyze environmental systems and provide more advanced engineering solutions based on environmental biotechnology. Using molecular microbiological techniques, mathematical modeling, and reactor operation, we currently work on wastewater treatment, water reuse, membrane processes, and bioenergy systems.
To achieve the goal to promote redox reaction-based physicochemical water treatment processes, our research focus concentrates on (i) fabricating nanostructured and nanoscale materials to initiate thermal-, electro-, and photocatalytic reactions and (ii) identifying the mechanisms for oxidative/reductive decontamination.