Day 1 :
Georgian Technical University, Georgia
Time : 10:40-11:20
Kartlos J Kachiashvili has his expertise in development of automated monitoring and control systems of environmental water pollution level, metrology of the suitable measurement devices, mathematical mo¬deling and simulation of pollutants transport in water objects and measurement devices and processes, development of new computer technologies, system analysis and analysis of environmental, agricultural and medical data. He developed his activities in scientific production associations, research institutes and universities of different countries. Developed by him systems, program packages, models, methodologies were practically realized in real systems of different countries of former USSR. His research results are published in many scientific articles and monographs published in many well-known, international journals and publishing houses.
For solving the problems of study, analysis and quality management of the environment there is necessary operatively to treat great amount of measuring information on physical, chemical and biological parameters characteristic for them. To do it in a proper way, in conformity to the modern requirements, is possible only by wide use of modern mathematical methods and computers. For this purpose it is necessary to develop automated systems and universal program packages with developed mathematical methods consisting of self-learning algorithms requiring whenever it is possible minimum a prior information and having capability of adaptation to the most unexpected changes of the character of the investigated objects. Among the most topical problems of monitoring of a natural water environment, it is necessary to single out the following issues: simulation of pollutants transferring in water objects; methods of making decisions about condition of controlled objects and processes taking place in them; identification of sources of emergency pollution to take measures for their elimination. With the purpose of overcoming of the mentioned problems, the consideration and the demonstration of the following program packages are offered in the work: automated water quality control system, mathematical models of pollutants transport in rivers and identification of river water excessive pollution sources. These packages are developed under guidance of the present work and are introduced in a real water objects such as rivers and sewage of factories.
Time : 10:00-10:40
Gilbert C. Sigua is a Research Soil Scientist at the USDA-ARS Coastal Plains Soil, Water, and Plant Research Center in Florence, South Carolina, USA. His research program focuses on both the short-term and long-term solutions to enhancing agricultural and environmental sustainability and improving water and nutrient management in humid region. Gilbert is a nationally and internationally recognized expert and authority in his field because of his work on agricultural, ecological and environmental management research as evidenced by his various international projects in Brazil, Australia, Philippines, Japan and Cambodia. Dr. Sigua’s scholarly achievements and expertise have been widely recognized through numerous honors and awards. As a testimony to this, he was recently awarded major fellowship awards, to wit: a) Fellow of American Society of Agronomy; b) Fulbright Fellow; c) Japan Society for Promotion of Science Fellow; d) “Balik Scientist” Fellow; and e) Fellow of Soil Science Society of America.
The rapid population growth, urbanization and modernization worldwide have resulted in the significant increase of waste generated. Waste production is a major environmental problem in our society. In fact, recycling and using raw materials from the waste we generate are some of the environmental challenge that we face today. Promotion of innovative and appropriate technologies is necessary to achieve sound and sustainable waste management. Biochar production using pyrolysis technology can utilize most urban, agricultural or forestry biomass residues, including wood chips, corn stover, rice or peanut hulls, tree bark, paper mill sludge, animal manure, and many other recycled organics. Biochar is the solid product that results from pyrolysis of agricultural wastes and organic materials. Biochars as specialized soil amendments can provide multifunctional roles with remarkable agronomic and environmental significance. Our biochars studies demonstrated the favorable and beneficial effects of different designer biochars on biomass productivity and nutrient uptake of winter wheat grown in Norfolk soils with hard setting subsoil layer. Application of 80:20 blends of pine chips and poultry litters was found to be superior over other blends of biochars because of its favorable effects on biomass productivity and nutrient uptake of winter wheat. Our research investigations have also confirmed that biochars have binding mechanisms to sequester metals. Recently, biochars ability to sequester metals has caught the attention of the mine reclamation sector. It is proposed that biochar is a suitable amendment to remediate heavy metals in mine spoils, as well as improve chemical conditions for enhanced plant growth. Better plant growth will improve phytostabilization, increase containment of metal-laden sediment, while also reducing potential metal uptake by plants. As such, utilization of a biochar with appropriate chemical and physical characteristics is crucial for effective binding of heavy metals while also improving plant growth conditions in the mine spoils.