Ahn Ji Whan
Korea Institute of Geosciences and Mineral Resources, Korea
Title: The grand challenges of emerging environmental issues
Biography
Biography: Ahn Ji Whan
Abstract
Over the several years, population growth, water pollution, air pollution, climate change and global warming are thernmost discussing and emerging environmental issues. Greenhouse gas emissions are caused to global warming and itrnwas a serious problem that should be one of the primary challenges for governments. The above mentioned issues are allrninterrelated to each one. Prevention of CO2 emissions from all sectors is the primary solution of the global warming issue andrnsimultaneously we can control the climate change. In the 21st century, water scarcity, water quality and pollution are expected tornbecome more acute as population growth. Currently 600 million people face water scarcity and nearly 3.2 billion people may bernliving in either water scarce or water stressed conditions by 2025. In developing countries, many areas are serious contaminatedrnof natural resources and serious effects on human health. The transmission of pathogens through tap water and drinkingrnwater remains a significant problem. Worldwide, nearly 10 to 20 million deaths occur a year due to the water borne bacterialrnpathogens diseases. The other biggest issue is air pollution. Particulate matter is released from various industrial processes viarnstack emissions to air. Particulate matter can cause long term effects on people’s health and reduce life expectancy; particularlyrnthose are suffering with pre-existing heart and lung disease. PM 2.5 is an emerging priority pollutant in global. The solutions ofrnthese major problems are CO2 emissions prevention and CO2 utilization. Accelerated carbonation is a multipurpose techniquernfor water purification, heavy metals stabilization which is presented in water and improving the CO2 capturing capacity. CO2rncapture, utilization (CCU) is a promising technology where in CO2 is captured and stored in solid form for further utilizationrninstead of being released into the atmosphere. The new advanced process called accelerated carbonation has been widelyrnresearched and developed.
