| Science, Education, Innovations and Chemical Technologies - From Idea to Implementatio | Tbilisi, Georgia | 2023 | 21/11/2023 - 23/11/2023 | TSU | ASSESSMENT OF THE IMPACT OF EMERGENCY DISCHARGE OF LEACHATE ON HYDROLOGICAL OBJECTS | oral | In Georgia, since 2010, three state companies have been managing municipal solid waste (MSW) and operating landfills (Solid Waste Disposal Site (SWDS)) in Georgia: Waste Management Company (whole Georgia, except Adjara and Tbilisi - 54 SWDS), Tbilservice Group (Tbilisi - 1 SWDS) and Adjara Waste Management Company (Adjara - 2 SWDS ). 51% of the solid waste generated in Georgia (400 tons of MSW/year) [4] is placed at a new type of SWDS of capital city, where immediately from the start of operation, due to the shortage of power, of the reverse osmosis system and its subsequent deactivation, there was a problem of treatment the leachate, and, accordingly, a problem of their discharge into the sewerage system. On the territory of SWDS installed 2 reservoirs (volumes: 7500 m3 and 4000 m 3 ) with an area of 0.65 hectares. Leachate is pumped into reservoirs, settled, and then pumped back to the SWDS area. Based on monthly eco-monitoring of leachate water, an increased content of particularly problematic microbiological indicators of Total Coliforms was revealed, the values of which in the leachate are tens of times higher than the maximum permissible discharges (MPD) norms into water bodies, established by the Georgian Requirements for Environmental Quality. Leachate is formed when the humidity of MSW is >55% and precipitation significantly exceeds the amount of moisture evaporated from the surface of the SWDS. If the reservoirs are filled, at least 4000 m 3 of leachate can enter the Norikhevi River through a dry ravine, which means that due to the small water consumption of the Norikhevi River (0.12-0.08 m 3 /s) this can pose an environmental hazard. | https://www.tsu.ge/en/news/II-%E1%83%A1%E1%83%90%E1%83%94%E1%83%A0%E1%83%97%E1%83%90%E1%83%A8%E1%83%9D%E1%83%A0%E1%83%98%E1%83%A1%E1%83%9D-%E1%83%99%E1%83%9D%E1%83%9C%E1%83%A4%E1%83%94%E1%83%A0%E1%83%94%E1%83%9C%E1%83%AA%E1%83%98%E1%83%90--%E1%83%9B%E1%83%94%E1%83%AA%E1%83%9C%E1%83%98%E1%83%94%E1%83%A0%E1%83%94%E1%83%91%E1%83%90,%C2%A0%E1%83%92%E1%83%90%E1%83%9C%E1%83%90%E1%83%97%E1%83%9A%E1%83%94%E1%83%91%E1%83%90,%C2%A0%E1%83%98%E1%83%9C%E1%83%9D%E1%83%95%E1%83%90%E1%83%AA%E1%83%98%E1%83%94%E1%83%91%E1%83%98-%E1%83%93%E1%83%90-%E1%83%A5%E1%83%98%E1%83%9B%E1%83%98%E1%83%A3%E1%83%A0%E1%83%98-%E1%83%A2%E1%83%94%E1%83%A5%E1%83%9C%E1%83%9D%E1%83%9A%E1%83%9D%E1%83%92%E1%83%98%E1%83%94%E1%83%91%E1%83%98%C2%A0---%E1%83%98%E1%83%93%E1%83%94%E1%83%98%E1%83%93%E1%83%90%E1%83%9C-%E1%83%93%E1%83%90%E1%83%9C%E1%83%94%E1%83%A0%E1%83%92%E1%83%95%E1%83%90%E1%83%9B%E1%83%93%E1%83%94-2023- |
| International Scientific Events: Agriculture & Food 2023 | Burgas, Bulgaria | 2023 | 14/08/2023 - 17/08/2023 | Science Events | Study of alternative mitigation the ecobiotoxicology of leachate water | poster | The largest official municipal solid waste disposal site (SWDS) in Georgia has been serving the capital since 2011. In 2018, a reverse osmosis system was installed at the landfill for the treatment of leachate water, the capacity of which was 12 m3/day, which was insufficient, and accordingly, it was out of order at the end of 2018. At present, since it is not possible to clean the leachate for discharge Into the sewage system in accordance with the legal norms, the leachate is collected in open tanks, where sedimentation takes place and then returns to the body of the landfill (circulates), which on the one hand partially limits the pollution of surface waters, and on the other hand accelerates the process of decomposition of mixed waste, but also daily enriches leachate water with both chemical and biological toxins. The goal of our research was to determine the dynamics of the microbiological indicators of the leachate water generated at the largest SWDS in Georgia during the years 2022- 2023 and alternative complex treatment of leachate, through which the microbiological indicators will be reduced to the norm without additional measures. The carbon sorbents of different origins and fractions (under static conditions) were used in the framework of the research to treatment of highly polluted waters. It was determined that the sorption of the studied microbiological indicators (Total Coliform, E. coli, Enterococci) on the example of the carbon sorbents used by us is fluctuating and highly dependent on the size of the sorbent, and it should be noted that the optimal result is obtained when using a microsorbent and the degree of sorption of all three microbiological indicators reaches 98 %. | https://www.sciencebg.net/ru/photos/62/ |
| 13th International Conference on 13th IconSWMCE & IPLA Global Forum 2023 Sustainable Waste Management & Circular Economy and IPLA Global Forum 2023 | Mumbai, India | 2023 | 29/11/2023 - 02/12/2023 | ISWMAW | Sorption Properties of Green Carbon Materials for Treatment Wastewater | oral | The aim of the present research work is to study the sorption properties of carbon materials obtained from some fraction of municipal solid waste, such as hazelnut/walnut shells, nectarine kernel and polymers (PP) by a technology developed at the Institute of Inorganic Chemistry and Electrochemistry of Iv. Javakhishvili Tbilisi State University and to determine the possibility of their use for treatment extra polluted wastewater from major normalized contaminants - heavy metals, organic pollutants, microbiological agents. The obtained carbon materials showed a high surface area of 469.37-640 m 2 g −1 . The applications of as- obtained carbon materials were explored under the static conditions (25ºC), in 100 ml of 0.01 M model solutions of heavy metal ions Pb 2+ , Cu 2+ , Fe 2+ , Co 2 +, Cd 2+ and leachate water (heavy metals, phenols, oils and grease, COD, BOD 5 , E. Coli, Total Coliforms). The effects of adsorbent dose, contact time, pH on adsorption were studied. Studies have shown that: • The maximum sorption occurs in the first 90 minutes for heavy metals and 24 hours for organic pollutants and microbiological agents and then equilibrium is achieved; • The optimal size of sorbent particles for the sorption of heavy metals (60-100 nm) and for organic pollutants and microbiological agents (40-1000 µm) was determined; • The increase in the amount of sorbent (From 0.5/100ml to 2g/100ml) for all studied pollutants were reciprocated in the value of sorption efficiency by largely improving it; • The sorption capacity of obtained carbon material reaches the maximum value when the pH value is set at 3-5 for heavy metals (model solutions); • The maximum selectivity for all studied pollutants was shown by carbon material obtained from hazelnut shells - 70-99%. | https://www.iswmaw.com/ |
| ISC CHTAB2023, 2th International Scientific Conference "Chemical and Technological Aspects of Biopolymers | Batumi, Georgia | 2023 | 06/07/2023 - 08/07/2023 | TSU | Determination of Some Regulated Substance in Sludge of Gardabani Wastewater Treatment Plant | oral | The sewage systems of Georgian cities Tbilisi, Rustavi, Mtskheta and Gardabani are connected with Gardabani Wastewater Treatment Plant (WWTP), where the mechanical and semibiological (since 2019) processing of wastewaters occurs. In the process of urban (municipal and industrial) wastewaters treatment a sludge – wet waste of complex composition are formed in large quantities. One of the important parameters of sludge toxicity is an availability of regulated substances. From this viewpoint, the goal of our research was to establish the content of some regulated substances in the samples of sludge formed at the Gardabani WWTP. Three sludge samples were taken for physical -chemical analysis: dried sludge of 2007 (old), dried one of 2022 (new dried) and new wet sludge of 2023 (new wet). In order to check results accuracy and reliability, sludge samples have been processed via two methods: a) using „Microwave Digestion System MDS-6G“; b) through roasting at 300-350°C temperature aimed to organic substances removal and subsequent wet mineralization using aqua regia. The regulated substances: cadmium (Cd), lead (Pb), arsenic (As), zinc (Zn), copper (Cu), nickel (Ni), chrome (Cr), manganese (Mn), iron (Fe) and aluminum (Al) have been determined in the processed silt samples using microwave plasma atomic emission spectrometry (MP-AES). Despite the fact that sludge samples have been processed via two different methods, values of studied regulated substances concentration obtained resulting from their measurement are in well accordance to each other, and error between them doesn’t exceed permissible 5%. | https://www.tsu.ge/ka/news/ISC-CHTAB-2023- |
| 8th International Caucasian Symposium on Polymers and Advanced Materials | Batumi, Georgia | 2023 | 01/08/2023 - 03/08/2023 | TSU | Study of Sorption Potential of Carbon Material From Polymer Waste (for Example of Some Pollutants of Leachate of Tbilisi Landfill) | poster | Today, the harmonization of waste management process by Georgian government with European waste management policy is one of the priority issues, which should be focused on reduction of waste generation and reuse. This in turn is directly related to transition from linear economy to circular economic development and the use of new economic management models. The introduction of circular economy principles in Georgia is unthinkable in the conditions of irrational management of one of difficult to decompose waste - the polymer waste. Our preliminary studies have shown, that the share of one the most difficult to decompose fractions of municipal solid waste in Georgia - plastic is 14%, namely 126 thousand tons/year. Our research includes the minimization of the amount of the most harmful and hard degradable organic fractions (polymers) of municipal solid waste by obtaining sorbents and the study of their sorption potential for treatment of leachate of Tbilisi landfill (Norio) from some chemical indicators. The result of our research shows the high sorbtion potential for main pollutants - heavy metals, biogenic substances, microbiological indicators and organic impurities, and is on average 80%. | https://icsp8.tsu.ge/ge/announcement |
| Waste Management and Circular Economy | Kolkata, India | 2020 | 02/12/2020 - 05/12/2020 | Jadavpur Univetrsity | The Study of Hydrochemical Composition of Wastewater of the Capital City of Georgia | oral | Water resources is one of the most important national treasure of the country, to defend it is the duty of each humans. To protect the cleanness of natural water is vital important to ensure favorable living conditions for the state population, effective functioning of economy and to maintain the healthy environment as well. Wastewater plays an important role in the process of salinity balance of the rivers in Georgia, since wastewater treatment plant of Tbilisi (Gardabani WWTP) operated only mechanical and semi-biological treatment and serves only part of the city. As a result, wastewater caught in the sewerage and without any treatment flow into the small rivers located in Tbilisi. The main goal of our research was to identify chemical composition of wastewater, which flows into small rivers of capital city of Georgia. As a result of study of hydro-chemical parameters of some wastewater which flow into the small rivers were identified that the main of the pollution component of wastewater is biogenic and surface active synthetic substances, whose permissible exposure limits (PELs) exceed 2-10 times. | https://www.iswmaw.com/Iconswm2020/data/10th_IconSWM-CE_2020_Abstract_Book.pdf |
| I International Conference on Caucasus Ecology and Environmental Management | Tbilisi, Georgia | 2001 | 06/10/2001 - 07/10/2001 | Caucasus Ecology Foundation | Dynamics of atmospheric precipitation mineralization in the second half of the 20th century | oral | The chemical composition of atmospheric reservoirs in a certain approximation reflects the poisonous pollution of atmospheres. Planning ego study, in volume and in Mr. Tbilisi, initially prof. G. Supatashvili in the 50s passed the last century and continued to work with the Hydrometric Center. Study of the combination of macro and micro elements, biogenic and organic skills. More than 200 tests for 1956-1965, 1971-1974, 1982-1985, 1990-1992 were analyzed. The analysis of the collected information shows that the acidification of the plants in Tbilisi is not observed, the pH of the atmospheric oscillations fluctuates in the area 5.6-7.1. On the other hand, the amount of the main ions in the reservoirs gradually increases in the range of 12.8-40.4 mg / l and the content of the normalized ions, namely: Pb2 +, Cu2 + Zn2 + | https://institutes.gtu.ge/uploads/1,1.pdf |
| ჰიდრომეტეოროლოგიისა და ეკოლოგიის აქტუალური პრობლემები/ ჰიდრომეტეოროლოგიის ინსტიტუტის სესია | Tbilisi, Georgia | 2002 | 30/05/2002 - 31/05/2002 | Institute of Hydrometeorology | Chemical composition of atmospheric precipitation in Tbilisi and assessment of anthropogenic impact | oral | The chemical composition of Tbilisi atmospheric precipitation has been studied, in particular the content of main ions, biogens and some heavy metals by seasons. It has been established that the concentration of some components in the atmospheric precipitation samples taken in different districts of Tbilisi mainly depends on the traffic flow. | https://ecohydmet.ge/108.pdf |
| Sesia of GEORGIAN INSTITUTE OF HYDROMETEOROLOGY, Problems of hydrometeorology and ecology | Tbilisi, Georgia | 2007 | 24/05/2007 - 25/05/2007 | Institute of Hydrometeorology | Chemical composition of precipitations and their link with different factors | oral | The intercoupling of salinities with geographical, meteorological and anthropogenic factors is learnt in samples of precipitations of Tbilisi for 2001-2002s. The correlation link between salinity of precipitations and their acidity is calculated. The salinity of precipitations of Tbilisi in second half of 90-sZ is characterized by the tendency of abatement, that explains by an abatement of plotting scales of production in Tbilisi. | https://ecohydmet.ge/111.pdf |
| International Conference | Ukraine, Truskavets | 2007 | 16/04/207-07 - 20/04/2007 | НПЦ Екологiя Наука Технiка | Impact of rain flows of Tbilisi on the chemical composition of the river Mtkvari | oral | According to the obtained results, the mineralization of atmospheric precipitation flowing down from the roofs of buildings and storm flows is 8-24 times higher than the mineralization of atmospheric precipitation in Tbilisi. Storm streams are especially enriched in nutrients and heavy metals (Zn and Pb). It has been established that about 5-7x100² tons of dissolved and 1.5-2x100² tons of suspended matter enter the Kura River with stormwater annually. It is calculated that the amount of dissolved and suspended substances entering the Kura River with storm flows during their fallout is commensurate with the amount of substances transported by the river (3-5x10² and 8-12x10² t)." | https://institutes.gtu.ge/uploads/truskavets.pdf |
| | 2007 | 24/09/2007 - 28/09/2007 | НПЦ Екологiя Наука Технiка | Trends in the change of chemical composition of atmospheric and surface waters of Georgia during the previous century | oral | As a result of changes in anthropogenic and hydrometeorological parameters on the territory of Georgia in the last 100 years, a change in the chemical composition of atmospheric and surface waters is obvious. The change in the sum of atmospheric precipitation ions (data for 1956-2006) caused by meteorological factors varies within ±30%. The influence of anthropogenic factors is directly related to the chemical composition of atmospheric precipitation. So in the 60-75s of the last century, the mineralization of atmospheric precipitation is stable (20 ± 3 mg / l), a sharp increase in mineralization is observed in the 80-90s, which is associated with the peak of industry in Georgia, after which the decline until 2003. After the gasification of the city of Tbilisi (60s), the pH of atmospheric precipitation increased by 0.15-0.2 units, with a simultaneous decrease in the concentration of sulfates by 0.5-1.0 mg/l. Trends in changes in natural and anthropogenic factors over a long period of time are clearly reflected in the content of the main ions in river waters. According to data from 1890, the mineralization of the river. The Kura is gradually increasing, which is caused, firstly, by a sharp increase in anthropogenic load, as well as a decrease in the flow of the river. A similar change is observed on the river. Aragvi (data 1950-1990). A sharp change in mineralization was found in the waters of the Samgori reservoir (near Tbilisi), which was put into operation in 1952 by flooding salt lakes with the waters of the river. Iori, which is caused by desalination with low-mineralized waters of the river. At the same time, there is a change in the ionic composition of the water of the reservoir (sulphate-sodium waters turn into hydrocarbonate-calcic ones). The proportion of the main ions entering the river water with precipitation is 4-7% of their total content | https://institutes.gtu.ge/uploads/koktebel.pdf |
| V International Conference | Russia, St. Petersburg | 2007 | 05/06/2007 - 07/06/2007 | Scientific and Industrial Association | Dependence of chemical composition of atmospheric precipitation in Tbilisi on natural and anthropogenic factors | oral | The chemical composition of atmospheric precipitation and its runoff from the roofs of buildings and the ground surface in Tbilisi during 2001-2006 was studied. The interrelation of their mineralization with meteorological, geographical and anthropogenic factors has been established. The relationship between DR correlation acidity and mineralization, as well as the concentration of individual ions and anthropogenic factors, was calculated. The content of such anthropogenic substances as heavy metals, pesticides, and benzo(a)pyrene was determined in samples of atmospheric precipitation and their effluents. The radioactivity of the air in Tbilisi was measured and the degree of radionuclide washout by atmospheric precipitation was calculated. It is shown that the amount of precipitation ions is directly proportional to temperature, wind speed, number of dry days, and inversely proportional to the duration and intensity of precipitation, droplet size and humidity. A change in the mineralization of the fractions of atmospheric precipitation runoff has been established. During rain, the mineralization of runoff decreases, but the mineralization of the last fraction increases again, which is explained by a decrease in the intensity of precipitation and droplet size and an increase in the duration of the runoff. | https://institutes.gtu.ge/uploads/vozdux-2007.pdf |
| International Conference | Tbilisi, Georgia | 2010 | 10/11/2010 - 11/11/2010 | Georgian Technical University | Determining the ecochemical hazard of municipal solid waste on the example of Gldani landfill | oral | The composition of municipal solid waste (MSW) in Tbilisi landfills is compared with the MSW of other countries. It is mentioned that organic fraction and fine waste fractions predominate in Tbilisi landfills. Ecochemical monitoring of atmospheric air has been carried out at Gldani MSW site. It has been established that Gldani MSG polygon is a powerful source of atmospheric air pollution with NO2, CO and CO2. The macro- and microchemical composition of surface flows and groundwater has been studied. According to the results, the total content of surface ions and main ions of groundwater averages 23.8 and 7.2 g / l, respectively. Surface flows and groundwater belong to hazard class according to the degree of hazards factor, and class VII according to water pollution index. | https://institutes.gtu.ge/uploads/garemos dacva da mdgradi 2010.pdf |
| VI International Conference "Air 2010" | Russia, St. Petersburg | 2010 | 09/06/2010 - 11/06/2010 | Scientific and Industrial Association "Atmosphere" | Emission of harmful and greenhouse gases in solid waste disposal sites in Tbilisi | oral | Today, one of the most acute environmental problems in Georgia is household waste, which is a source of environmental pollution and harm to public health. At present, there are 69 registered sites in Georgia - landfills for solid domestic waste (MSW), which in no way meet international requirements for the construction and maintenance of landfills for solid domestic waste, of which only the metropolitan can be called controlled. Every year, about 5.03 million m3 of MSW are delivered to all official landfills in Georgia. The amount of household waste per capita in Georgia increases by 1-4% every year, and, accordingly, the emission of harmful substances into the atmosphere of cities increases. 45% of solid waste is generated in Tbilisi, where only 2 solid waste landfills officially operate, one of which is located near (2.2 km) a large settlement - Gldani. Back in the 90s of the last century, the Gldani landfill occupied up to 3 hectares, at the moment its area is more than 5 hectares. Every day, about 650 tons of MSW enter the landfill area. The incoming waste is not sorted, it is not covered with a layer of earth. To reduce decomposition, the waste is periodically subjected to heat treatment right on the spot, due to the climate, this problem is especially relevant in the warm season. Our studies show that atmospheric air pollution adversely affects the health of the population of the Gldani region. In the summer season, the population of the Gldani district of Tbilisi lives in difficult living conditions, when the content of harmful substances in the air exceeds the norms for NOx, dust, CO, benzapyrene and dioxins. We calculated the emission of some greenhouse gases on the territory of Georgia near landfills using the Gldani landfill as an example. It was found that CH4 dominates in the studied sector, whose share is 93%. It is calculated that the methane emission is 1160.2 Gg СО2 – eq., i.e. 8% of greenhouse gas emissions in the country. | https://istina.msu.ru/collections/90622626/ |
| II Industrial Conference Ventilation, Gas Purification and Aerosol Control in Nuclear Industry | Russia, St. Petersburg | 2011 | 16/10/2011 - 18/10/2011 | НИИ ПММ | Protecting Exhibits from Harmful Substances in Art Museum Museum Treasures and Exhibition Halls | oral | The Georgian Art Museum is one of the largest state repositories of works of art in Georgia. The museum treasures exhibit Georgian engraved and painted icons, cloisonne enamel, unique monuments of jewelry, artistic fabrics and embroidery, old Georgian murals, masterpieces of Georgian artists, art monuments of Russian, European or Eastern countries. It is therefore extremely important to protect national wealth from possible negative impacts. We studied the concentrations of harmful substances in the air of the treasures and exhibition halls of the Georgian Art Museum. It was found that the concentrations of sulfur dioxide, hydrogen sulfide, nitrogen oxides and carbon monoxide in some halls sharply exceed the ZDC, due to which the museum exhibits undergo a color change. The hydrogen form of clinoptinolite obtained from natural raw materials of Georgia is characterized by high sorption capacity with respect to some compounds (H2S, SO2, CO, NOx), so it is possible to protect the museum exhibits from harmful gases by using this sorbent. The use of the hydrogenated form of clinoptinolite is very economically viable and the guarantees of preservation and protection of the exhibits by introducing it in the museum are great, at the same time the cost of natural raw materials is very low. After many years of observations and experiments, we have determined that under the display case of valuable exhibits 100 g. The placement of the hydrogen form of Tedzami clinoptilolite provides 2 years of protection of these exhibits from harmful impacts. | https://institutes.gtu.ge/uploads/Охрана экспонатов сокровищниц и выставочных залов музеев искусств от вредных веществ.pdf |
| International Scientific-Practical Conference | Russia, St. Petersburg | 2011 | 16/06/2011 - 17/06/2011 | A.S. Pushkin Leningrad State University | Study of the Ecochemical Status of Water System of the Tbilisi Municipal Solid Waste | oral | In order to determine the impact of the landfill in Gldani on the ecological state of the water system of the study area, we studied the macro- and microchemical composition of groundwater and surface wastewater in the landfill area and beyond. The analysis established patterns of distribution of pH, Σi and other hydrochemical parameters in time and space. As surface sewage and groundwater belong to almost neutral sodium sulfate (pH 6.82-7.81) water... Extreme and average concentrations of biogenic substances, some organic compounds and heavy metals in surface wastewater and groundwater, as well as changes in their content according to seasons and as they move away from the body of the solid waste landfill. | https://institutes.gtu.ge/uploads/ekologicheskoe ravnovesie 2011.pdf |
| International Conference | Tbilisi, Georgia | 2011 | 15/09/2011 - 17/09/2011 | Iv. Javakhishvili Tbilisi State University | Assessment of ecochemical condition of surface runoff on the territory of Tbilisi Gldani closed landfill | oral | Studied hydrochemical indicators of surface drains on the closed Gldani SWDS's area and beyond. On the bases of obtained data, changes of components concentrations in the surface drains are estimated on the different distance from the range. According to obtained data, total maintenance of main ions (2) in surface drains 2 km of distance is reduced at 75%. determined in the samples of surface drains, taken from polygon area. The content of heavy metals and polycyclic aromatic hydrocarbons (PAH) is On the degree of technogenic factor of influence, surface drains belong the class of dangerous, and by value of water pollution index (WPI) to the VII class | https://institutes.gtu.ge/uploads/garemo da globaluri 2011.pdf |
| PRESSING PROBLEMS IN HYDROMETEOROLOGY AND ECOLOGY | Tbilisi, Georgia | 2011 | 26/05/2011 - 27/05/2011 | Institute of Hydrometeorology at Georgian Technical University | Determination of the quality of riv. Kura basin waters using integral hydrochemical indecies | oral | The present article discusses the method selected by us related to awarding the quality classification to surface water based on the Mtkvari river example. We have also identified the priority indicators that, in our opinion, are the most characteristic and reasonable for defining the quality of the river basin under question and, respectively, water classification. It was observed that some of the tributaries of the Mtkvari river can be classified as “polluted” or “slightly polluted”, which claims attention. It was also found out that to some extent the level of water pollution depends on seasonality. | https://ecohydmet.ge/117.pdf |
| International Conference“Extreme Weather and Climate Events in the Southern Caucasus - Black Sea Region" | Tbilisi, Georgia | 2013 | 03/06/2013 - 07/06/2013 | International Centre for Theoretical Physics (ICTP) | Impact of Municipal Solid Waste Landfills in Adjara Region on Atmospheric Air | oral | The impact of current and closed official landfills in Adjara on atmospheric air and climate change has been studied. A long-term forecast for methane emissions has been established. | http://indico.ictp.it/event/a12233/ |
| PRESSING PROBLEMS IN HYDROMETEOROLOGY AND ECOLOGY | Tbilisi, Georgia | 2013 | 28/05/2013 - 30/05/2013 | Institute of Hydrometeorology at Georgian Technical University | DETERMINATION OF METHANE EMISSION FROM CLOSED AND OPEN LANDFILLS AND PRACTICAL USAGE OF ISOLATED METHANE | oral | The dynamic of emitted methane from closed landfills of Gldani and Ialghuja is studied in the period 2000-2012. The methane emission is calculated from Norio landfill, which is equipped with modern technology. The prospects of usage of landfill gas for energy is analyzed and evaluated. | https://ecohydmet.ge/119.pdf |
| Institute of Hydrometeorology at Georgian Technical University | Tbilisi, Georgia | 2013 | 28/05/2013 - 30/05/2013 | Institute of Hydrometeorology at Georgian Technical University | EVALUATION OF THE ECO-CHEMICAL STATUS OF MAIN TRIBUTARIES OF RIVER MTKVARI IN THE CITY TBILISI | oral | The major five tributaries of river Mtkvari (rivers: Vere, Digmis ckali, Cavkis ckali, Gldanis xevi and Lochini) have been evaluated and analyzed. The main hydrochemical parameters are determined in water samples of each river and calculated the level of pollution. The quality of anthropogenic load on small rivers is estimated as well. | https://ecohydmet.ge/119.pdf |
| International Conference | Tbilisi, Georgia | 2015 | 22/10/2015 - 25/10/2015 | Iv. Javakhishvili Tbilisi State University | Assessment of environmental risk factors as a result of full operation of the Georgian Silk Road | oral | The route of the Silk Road crosses 450 km from east to west of the country and much of it goes through agricultural land. Nowadays in Georgia has significantly increased vehicle quality, changed the highways infrastructure, as a result of this has increased of greenhouse gas emissions. For protect the environment from harmful effects of exhaust of transport necessary to plant mulberry trees on the sanitary protection zone of the Silk Road on Georgia's stretch. | https://institutes.gtu.ge/uploads/geografiisa da anTropologiis 2015.pdf |
| International Conference on Solid Waste Management, 5IconSWM 2015 | India, Bangalore | 2015 | 25/11/2015 - 27/11/2015 | Jadavpur University | Establishment of Energy Potential of Norio Landfill of Municipal Solid Waste of Tbilisi | oral | In November 2010 the new landfill has been put into service in Tbilisi, the territory of which equals to 94 ha and is divided by inner roads into several areas, on which the waste disposal cells (area 5 ha) are installed. The goal of our project was the determination (elaboration of energetic scenarios) of economically profitable ways of utilization/application of basic greenhouse gas CH4, on the basis of inventory of methane emission from Norio landfill of municipal solid waste of Tbilisi city by IPCC methodology, and prevention from global climate changes caused by greenhouse gases with the use of methane in the energy sphere. The share of the landfill of municipal solid waste in the greenhouse gases emission in Georgia equals to 7% of the total emission of CH4 and CO2 that is very high rate. Our goal was the determination of amount of greenhouse gases (CH4 and CO2) emerged on the Norio landfill and forecasting of gases emission for the subsequent period. According to inventory data the whole potential of methane emission from Norio landfills equals to 930 mln. m3. | https://institutes.gtu.ge/uploads/establishment-of-energy-potential-of-norio-landfill-of-municipal-solid-waste-of-tbilisi.pdf |
| International Conference on Solid Waste Management, 6IconSWM 2016 | India, Kolkata | 2016 | 23/11/2016 - 26/11/2016 | Jadavpur University | The Influence of Municipal Solid Waste of Georgia on Climate Changes | oral | Currently, the improvement of municipal solid waste (MSW) management is an ongoing process in Georgia. Up to 90% of wastes generated in the country are disposed without any separation procedures. Unfortunately, information on amount and morphological composition of waste generated in Georgia does not exist, and methodology of waste accounting is not elaborated that creates great problems during drawing of international scientific projects, determination of energy efficiency of waste and possibility of waste processing. One of the important issues of technogenic impact of waste on the environment is produced greenhouse gases and its impact of global climate change. After disposal of replaces waste, a large amount of landfill gas is produced in landfill. The formation of landfill gas depends on the natural conditions (geographical, climatic and meteorological factors) and landfill management and the composition of the waste as well. The goal of our project was determination of morphological composition of MSW and identification of the total amount of waste, generated from the domestic and commercial facilities of Georgia (including all cities and villages of each municipalities of State) by uses of gravimetrical analyses and obtained data from the effectiveness questionnaire of waste. The results show that the main fractions of municipal solid waste are paper, plastic and food waste. The character of Georgian waste defines the generating big amount of methane. The impact of waste on global climate change was identified based on the IPCC methodology. | https://link.springer.com/chapter/10.1007/978-981-10-7290-1_16 |
| 5th World Convention on Recycling and Waste Management | Singapore | 2017 | 11/09/2017 - 12/09/2017 | Conferenceseries LLC | Impact of incineration of municipal solid waste on climate change in Georgia | poster | Currently, the improvement of solid waste management in Georgia implying harmonization of the on-going process of the development of waste management in Georgia with the European waste management policy is one of the state priorities. At present up to 90% of wastes generated in country are disposed without any separation and any reduce procedures. To improve waste management practices in Georgia, the Law on “Waste Management Code” was enacted on January 15, 2015, as well as “The National Waste Management Strategy for 2016-2020” and “The National Waste Management Action Plan for 2016-2020” were approved by the Resolution on April 1, 2016 of the Government of Georgia. The goal of our project was inventory of methane from waste sector of Georgia by uses of IPCC 2006 methodology. The results of our studies showed that, with the gradual implementation of measures incineration of municipal solid waste in accordance with the law documents, methane emissions from Georgia's landfills in the period 2021-2030 decrease by an average of 6%. | https://www.walshmedicalmedia.com/proceedings/impact-of-incineration-of-municipal-solid-waste-on-climate-change-in-georgia-38662.html |
| 4th International Conference: WASTES: Solutions, Treatments and Opportunities | Porto, Portugal | 2017 | 25/09/2017 - 26/09/2017 | University of Porto | IMPACT OF ALTERNATIVE METHODS OF DISPOSAL OF MUNICIPAL SOLID WASTE ON CLIMATE CHANGE IN GEORGIA | poster | Currently, the improvement of solid waste management in Georgia implying harmonization of the on-going process of the development of waste management in Georgia with the European waste management policy is one of the state priorities. At present up to 90% of wastes generated in country are disposed without any separation and any reduce procedures. To improve waste management practices in Georgia, the Law on “Waste Management Code” was enacted on January 15, 2015, as well as “The National Waste Management Strategy for 2016-2020” and “The National Waste Management Action Plan for 2016- 2020” were approved by the Resolution on April 1, 2016 of the Government of Georgia. The goal of our project was inventory of methane from waste sector of Georgia by uses of IPCC 2006 methodology. The results of our studies showed that, with the gradual implementation of methods for improving the management of waste in accordance with the Law documents, methane emissions from Georgia's landfills in the period 2021- 2030 decrease by an average of 19%. | http://www.wastes2019.org/sites/default/files/W17.pdf |
| PRESSING PROBLEMS IN HYDROMETEOROLOGY AND ECOLOGY | Tbilisi, Georgia | 2017 | 25/05/2017 - 28/05/2017 | Institute of Hydrometeorology at Georgian Technical University | Investigation of the Amount and Morphological Composition ofMunicipal Solid Waste in Georgia | oral | Since May 2015 are implementing the project "Elaboration of Methodology for Determination of Accumulated Amount and Morphological Composition of Municipal Solid Waste in Georgia and Database Creation" which funded by the National Science Foundation. Shota Rustaveli. The goal of the project is to create a methodology for determining the quantity and morphological composition of municipal solid waste (MSW) and, based on the methodology developed, to determine the amount and morphological composition of MSW throughout Georgia.The obtained data show that the main fraction of generated MSW in Georgia is food waste, paper and plastics. It should be noted that solid waste generated in organizations differ in composition from those generated in households, since organic waste (by 28.6%), timber (by 5%) prevail in organizations, whereas paper / cardboard prevails in household (by 7.5%), Textiles / leather (2.1%), hygienic (8.5%) and inert waste (6.5%). | https://ecohydmet.ge/124.pdf |
| PRESSING PROBLEMS IN HYDROMETEOROLOGY AND ECOLOGY | Tbilisi, Georgia | 2017 | 25/05/2017 - 28/05/2017 | Institute of Hydrometeorology at Georgian Technical University | Assessment of the Positive and Negative Aspects of Incineration / Co-Incineration of Municipal Solid Waste in Georgia | oral | The effect of the incineration / co- incinerationof municipal solid waste on the reduction of greenhouse gas emissions was studied. It has been established that with the gradual introduction of incineration / co-incineration of municipal solid waste, in 2030 GNG emissions will decrease by 16% | http://ecohydmet.ge |
| 9th International Conference on Waste Management and the Environment | Seville, Spain | 2018 | 17/09/2018 - 19/09/2019 | Wessex Institute, UK | ASSESSMENT OF ECO-EFFICIENCY OF SEPARATION OF SOME FRACTIONS OF MSW: A CASE STUDY OF GEORGIA, SOUTH CAUCASUS | oral | Socio-economic development in Georgia is interconnected with the amount of municipal solid waste; in accordance with the statistical information of 2010–2017 it is 1.7% per year. The law on “Waste Management Code” was approved on January 15 2015, which regulates the waste management policy in Georgia, including separation activities and requirenments. During the last few years the first steps have been made towards the improvement of waste collection, disposal and landfill operations by municipality government, however the issue of waste minimization and decontamination still remains the challenge for the country. Based on the experimental databases of the morphological composition of MSW, which has been studied in 2015–2017, we estimated the amount of secondary use of some fractions of MSW, their impact on climate change and potential options for mitigating climate change. According to the data processing, and as a result of measures implemented in accordance with the national index of separation of MSW, 25% of whole MSW will be presented as a secondary raw material in 2030. Minimization of some fraction of MSW will cause reduction of methane emissions from SWDS of Georgia in 2020–2030, an average of 4.1%. | https://www.witpress.com/elibrary/wit-transactions-on-ecology-and-the-environment/231/37093 |
| Actual Problems of Landscape Sciences: Environment, Society, Politics, Proceedings of International Multidisciplinary Conference | Tbilisi, Georgia | 2019 | 09/09/2019 - 13/09/2019 | Iv. Javakhishvili Tbilisi State University | Impact of High Mountainous Rural Regions (Illegal Dumpsites and Latrines)of Grorgia on Climate Change | oral | The part of Georgian population living on the rural territory is approximately 46%, and 66% of the territory of Georgia consists of high mountainous regions inhabited by 6.5% of the country’s population. The high mountainous regions of Georgia are characterized by relatively structural weaknesses: non-diversified economy, outmigration, extreme poverty, underdeveloped infrastructure, limited access to health care and other public services such as waste management and sewerage. All these lead to increased formation of illegal dumpsites and latrines, which in turn impact on climate change. The aim of the research was to determine impact of illegal dumpsite and latrines on climate change using IPCC methodology and experimental data about quantity and morphological composition of municipal solid waste and statistical data of amount of latrines in High Mountainous Rural Regions of Georgia. The results of illegal dumpsites and latrines study shows that methane emissions from illegal dumpsites generated by high-mountainous rural regions of Georgia is 0.01% of emissions from the waste sector, while methane emissions from latrines amount is 0.01% of emissions from all sectors of Georgia. | http://press.tsu.ge/data/image_db_innova/ABSTRACTS_Conference.pdf |
| 16th International Conference on Environmental Science & Technology | Rodos, Greece | 2019 | 04/09/2019 - 07/09/2019 | CEST | Determining a Probability of the uncontrolled landfills emergence in Georgia's Rural Areas Using Integrated Methodology | oral | In this work, with the support of the local municipality, we collected data for each highland region that shows: population, presence of major sources of waste, number of landfills, frequency of waste disposal. Relevant technical, etc. Based on all these data, using our methodology, we We calculate the probability of the existence of uncontrolled landfills that may exist in a particular region.We also use drone images. | https://cest2019.gnest.org/sites/default/files/CEST2019_PROGRAMME_FINAL_WEBSITE.pdf |
| PRESSING PROBLEMS IN HYDROMETEOROLOGY AND ECOLOGY | Tbilisi, Georgia | 2019 | 31/05/2019 | Institute of Hydrometeorology at Georgian Technical University | Social and ecological-economic assessment of energy efficiency of Tbilisi solid waste landfill (accepted for printing) | oral | Methane emissions from the location of solid households in Tbilisi have been studied for social and ecological-economic evaluation of energy efficiency. However, these calculations do not include the emission fee for 1 ton of carbon dioxide equivalent, while the price of biomethane and electricity is partially subsidized. | https://ecohydmet.ge/127.pdf |
| 2nd Global Summit, Recycling and Waste Management | Japan, Tokyo | 2019 | 22/07/2019 - 26/07/2019 | Meetings International | Determination of the likelihood of emerging illegal dumpsites in high mountainous rural regions as an example of Georgia | oral | Today, about 50 sanitary and many small illegal landfills are registered in Georgia. The number and location of illegal landfills are largely unknown. Georgian villages are not fully covered by the waste collection service. These services are not available in many villages and therefore the population has to dump waste in illegal landfills. Up to 52% of the waste generated in the country is dumped arbitrarily in areas adjacent to settlements near river channels, even on river banks and even pastures. 66% of the territory of Georgia consists of mountainous regions, where 6.5% of the country's population lives. The mountainous regions of Georgia are characterized by relatively structural weaknesses, such as underdeveloped economy, emigration, extreme poverty, underdeveloped infrastructure, limited access to health and other public services, etc. Compared to the lowlands and urban regions of the country. All this contributes to the increase in the likelihood of one of the most common problems in Georgia - the emergence of an illegal landfill, which needs a comprehensive response. This study provides a mathematical formula that determines the likelihood of illegal landfills occurring. Mathematical calculations are based on regional statistics obtained and processed as a result of work carried out in 2015-2017. The probability of illegal polygons in the mountainous regions of Georgia is on average 70%. | https://www.scitechnol.com/conference-abstracts-files/determination-of-the-likelihood-of-emerging-illegal-dumpsites.pdf |
| Goldschmidt 2020 | USA, NW Washington | 2020 | 21/06/2020 - 26/06/2020 | Geochemical Society and of the European Association of Geochemistry | Assessment of the Some Benefits of Uncontrolled Landfills in Georgia | oral | Most of the soils of uncontrolled landfills in these regions obviously contain high level of nitrogen, whose concentrations are quite high compared to background points as well as average soil values, which leads to the conclusion that these types of landfill soils can be used (after some particular technological recycling) as fertilizer for enriching any other poor soil. | https://goldschmidtabstracts.info/abstracts/abstractView?doi=10.46427/gold2020.277 |
| Goldschmidt 2020 | USA, NW Washington | 2020 | 21/06/2020 - 26/06/2020 | Geochemical Society and of the European Association of Geochemistry | Study of the Likelihood of Emerging Illegal Dumpsites in High Mountainous Rural Regions of Georgia | oral | The high mountainous regions of Georgia are characterized by relatively structural weaknesses that contribute to increased likelihood of emerging one of the most widespread problem in Georgia - illegal dumpsites [1]. Within the research, integrated methodology considers determination of the likelihood of emerging illegal dumpsites based on collected statistical data using mathematical formula: D=(AC-(Ln(L)+Sn(S))fq)/AC•100% where: D–percentage of the likelihood of emerging potential illegal dumpsites; A- amount of wastes per capita;C- number of inhabitants;L-capacity of large containers, kg; n(L)- quantity of large containers, item; S- capacity of small containers, kg; n(S)- quantity of small containers, item; f– frequency of waste collection (frequency of servicing by the waste truck per week), coefficient from 0 to 1; q–efficiency of waste collection, coefficient from 0 to 1. Obtained statistical data was verified using an unmanned aerial vehicle and field visits and expeditions for the purpose of verification of theoretical data. Preliminary integrated estimates indicated that the likelihood of illegal dumpsites in high mountainous rural regions of Georgia from 30 to 80%. | https://goldschmidtabstracts.info/abstracts/abstractView?doi=10.46427/gold2020.631 |
| PRESSING PROBLEMS IN HYDROMETEOROLOGY AND ECOLOGY | Study of the Probability of the Formation of Illegal Landfills in the High Mountainous Rural Territories of Mtskheta-Mtianeti Region | 2020 | 29/05/2020 | | | oral | In this research, with the support of the local municipality, we’ve collected for Mtskheta-Mtianeti highland region the data showing: the number of population, existence of the main sources causing waste, the quantity, efficiency and frequency of waste collection, the relevant technic availability etc. Based on all these data by apply our methodology, we count a probability of existence of the illegal landfills that can exist in the region. | https://ecohydmet.ge/129.pdf |
| Webinar on World Environment Day 2021 Meeting-Environmental Restoration and Circular Economy | India, Kolkata | 2021 | 12/06/2021 | Centre for Sustainable Development and Resource Efficiency Management, Jadavpur University (CSD&REM, JU), Kolkata, India | Waste Management in Georgia | oral |
| https://institutes.gtu.ge/uploads/Certificate 12 June 2021_NATELA.pdf |
| 1196th International Conference on Environment and Natural Science | Azerbaijan, Baku | 2021 | 01/12/2021 - 01/12/2021 | IASTEM | Determining the Likelihood of Emerging Illegal Landfills Using Statistical Data on the Example of High Mountainous Regions of Georgia (Caucasus) | oral | Up to 52% of mixed wastes generated on the territory of Georgia are arbitrarily disposed on the areas adjacent to settlements – river channels, riverbanks, and even on pasturelands, which lead to a sharp deterioration in the ecological state of these areas. The aim of the research is to develop and apply an integrated methodology for the determination of the likelihood of emerging illegal landfills in the most densely populated high mountainous rural border regions of Georgia. To calculate the likelihood of emerging illegal landfills through surveys of investigating regions municipal services and local residents the necessary statistical data were collected and processed, such as the number of wastes per capita; the number of inhabitants; capacity and quantity of containers; frequency and efficiency of waste collection. Using airbrushing and experimental fieldwork, the theoretical results of determining the probability of emerging illegal landfills in the study area have been checked. The comparative analysis of theoretical and experimental results showed that the theoretically obtained results depend on the reliability of the data available in the municipality services and in this case, are in good agreement with the real situation. The research found that the likelihood of emerging illegal landfills in the study mountainous rural territories of Georgia mainly depends on the availability of infrastructure of the settlements and average varies from 40% to 60%. | https://institutes.gtu.ge/uploads/azerbaijan 2021.pdf |
| 11th International Conference on Sustainable Waste Management and Circular Economy & IPLA Global Forum 2021 | India, Kolkata | 2021 | 01/12/2021 - 04/12/2021 | Centre for Sustainable Development and Resource Efficiency Management, Jadavpur University (CSD&REM, JU), Kolkata, India | Preliminary Ecological study of Leachate of the Tbilisi Municipal Solid Waste Landfill to Determine the Potential of their Purification using Carbon Nanomaterial | oral | In developing countries, among them in Georgia, at solid waste disposal sites at the so-called - open landfills - disposal of waste, even if the norms and regulations given are taken into consideration, utilization of waste has a very negative impact on the environment and poses a threat to the human health as mostly does not comply with the principles of sustainable waste management and circular economy protocols. The preliminary ecological study of the leachate at the Tbilisi open solid waste landfill was implemented to determine the possibilities of treatment them and for the further selection of carbon nanomaterials as a sorbents. The study included analysis of leachate samples from the working cell of the operating landfill of the capital city of Georgia - Tbilisi (during the 2018-2020) investigating the major ions, biogenic substances, some heavy metals, the chemical oxygen demand (COD), biochemical oxygen demand (BOD) and microbiological parameters. It had been established that leachate of municipal solid landfill′s of Tbilisi on average is characterized by several times higher data than the requirements of the European directives for the standards set for the quality of treated wastewater (EU Directive on urban wastewater treatment (91/271 / EEC)), in particular: COD – 20 times, BOD – 75 times, Total Nitrogen - 150 times, NH4+ - 7500 times, Total Phosphates - 5 times, suspended particles - 6 times, Fe - 10 - times and E-coli – 400, that is a matter of concern for examining the further ways of purification. | https://www.iswmaw.com/ |
| 11th International Conference on Sustainable Waste Management and Circular Economy & IPLA Global Forum 2021 | India, Kolkata | 2021 | 01/12/2021 - 04/01/2022 | Centre for Sustainable Development and Resource Efficiency Management, Jadavpur University (CSD&REM, JU), Kolkata, India | Evaluation of the Results of Chemical and Microbiological Analysis of Soil and Water of Territory of Some Official and Illegal Landfills in Georgia | oral | In this study, a comparative analysis of the results of the analysis of surface water, leachate and soil samples of territory (or near) of some official and illegal landfills were carried out. For this, official and illegal landfills in two city of Georgia (Tbilisi and Samtredia) were selected. On the territory of the selected landfills the surface water (if the landfill is located on the river bank), leachate and soil were sampling, in which were determined: metals (Cu, Zn, Pb, Fe), hydro- chemical parameters (COD, BOD, total nitrogen, total phosphorus), physical- chemical parameters (pH,suspended matter, color, smell) and the content of microbiological indicators (Total Coliforms, Escherichia Coli). On the basis of the results obtained, the negative impact of different types of landfills (official and illegal) on the adjacent territories and the environment in general, its condition and specific differences between different types of landfills in the processes of environmental pollution was evaluated. | https://www.iswmaw.com/ |
