Bioremediation has been applying in both geotechnical and geo-environmental engineering since few decades ago. While bioremediation has been using to prevent erosion and slope stabilization in geotechnical engineering, bioremediation process has been successfully using in remediation of contaminated lands. Bioremediation is using living things to eliminate or reduce environmental contamination such as contaminated soils or groundwater. Some microorganisms are able to change these chemicals into harmless stage. These microorganisms that live in soil and groundwater naturally consume certain chemicals that are harmful to people and the environment. Plants such as vegetations can also be used to clean up soil, water, or air; this process is called phytoremediation. As the large numbers of organic contaminants can be degraded by micro-organism and most biological treatments attempt to optimize conditions for degradation by the naturally occurring indigenous microbial population. Biological degradation processes can be either in situ or ex situ and aerobic or anaerobic (Wood 1991). Most methods of bioremediation involve supply of oxygen, foods and nutrients required by the micro-organism. This lecture present two selected bioremediation methods which were invented to use in geotechnical engineering and geo-environmental engineering. The one developed to use in geotechnical engineering is Soil Nail and Root System in which a long root grass is used to stabilize surficial slip of soil mass in conjunction with nail system which was used for stabilizing deep slip. In this process, grass roots provide reinforcement strength to the soil mass within the shallow zone in addition to the additional strength provided from suction activity of root system. This has long been used in Ontario, Canada to stabilize steep slopes along the rivers. Second one is in trial stage in which petrochemical contaminated soil was remediated using the micro-organism which eat diesel naturally. These specific micro-organisms which could consume more petroleum hydrocarbons were bred in the contaminated soil to eliminate the contamination in the soil. Their travelling speed and distances were enhanced by applying electrokinetic flow which carry them to further distance Hassan et.al (2016). In addition, foods and nutrients required by them were transported with the help of electrokinetic flow.
Dr. Myint Win BO is a President / Chief Executive Officer in Bo & Associates Inc. Canada. He graduated with B.Sc (Geology) from the University of Rangoon and received Postgraduate Diploma in Hydrogeology from University College London, UK and MSc Degree from University of London, UK. He obtained his Ph.D in Civil Engineering (specialized in geotechnics) from the Nanyang Technological University, Singapore and obtained Certificate of Executive Management and Leadership from Massachusetts Institute of Technology, USA. He is a Fellow of the Geological Society, London, UK and a Fellow of Institution of Civil Engineer, UK. He is also a professional engineer, professional geoscientist, International Professional Engineer (UK), Chartered Geologist, Chartered Scientist, Chartered Engineer, Chartered Environmentalist, Chartered Manager, European Geologist and European Engineer. He has been serving many professional societies in both national and international levels. He has been working in four continents around the world such as North America, Europe, The Far East and Pacific. He is an experience practicing engineer, geologist, environmentalist, scientist and entrepreneur as well as an educator and he has given more than 40 special/Keynote lectures and workshops in the international conferences, tertiary institutions and professional associations. He is also an Adjunct Professor in York University and Ryerson University, Canada as well as Adjunct Professor in Swinburne University of Technology in Australia. He has published Four Textbooks, Five book chapters, 200 over technical papers in International Journals and conferences. He is an Editor for five International Journals including Environmental Geotechnics Journal and Geotechnical Research journal published by Institution of Engineers, UK. His works were cited by more than 4500 times in the referred journals and proceedings. He is a winner of more than $ one million research grants and winner of many awards for personal achievements as well as designing many award winning projects around the world.