Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s19.23
Kristaps Siltumens, I. Grīnfelde, Sindija Liepa, E.P. Puzule, J. Burlakovs
Solid municipal waste landfills are the third largest source of man-made methane emissions. Methane is one of the greenhouse gases contributing to global warming. The capture of methane emissions in the waste sector is addressed by collecting it and using it for energy production. Methane emissions from active or closed landfills can be reduced by methane oxidation, which is developed as a covering over these landfills. It is usually composed of a gas distribution layer that favours micro-organisms that consume methane. The aim of this study is to find the most appropriate composition of the biocover in which filling material waste is used. In laboratory conditions, an experiment was conducted that studied the effectiveness of the biocover developed in the laboratory. Three experimental columns were created at a height of 160 mm and 1500 mm. A active compost saturated with water at a thickness of 500 mm was used as a source of methane, a permeable layer of sand at a thickness of 300 mm was further formed and finally covered with biocover. The biocover was composed of 60% of fine fraction waste, 20% soil and 20% compost, of the total volume. The experiment was created on 6 June 2022 and the first measurements were made two weeks later with CRDS equipment Picarro G2508. Measurements were made weekly for 4 months. The results of the study show that methane is released more forcefully after the first two months of application of the biocover. This is related to compost in the biocover, which has started to decompose actively, that methane oxidising micro-organisms develop on average after two months.
{"title":"BIOCOVER COMPOSITION IMPACT ON LANDFILL METHANE EMISSIONS REDUCTION","authors":"Kristaps Siltumens, I. Grīnfelde, Sindija Liepa, E.P. Puzule, J. Burlakovs","doi":"10.5593/sgem2022v/4.2/s19.23","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s19.23","url":null,"abstract":"Solid municipal waste landfills are the third largest source of man-made methane emissions. Methane is one of the greenhouse gases contributing to global warming. The capture of methane emissions in the waste sector is addressed by collecting it and using it for energy production. Methane emissions from active or closed landfills can be reduced by methane oxidation, which is developed as a covering over these landfills. It is usually composed of a gas distribution layer that favours micro-organisms that consume methane. The aim of this study is to find the most appropriate composition of the biocover in which filling material waste is used. In laboratory conditions, an experiment was conducted that studied the effectiveness of the biocover developed in the laboratory. Three experimental columns were created at a height of 160 mm and 1500 mm. A active compost saturated with water at a thickness of 500 mm was used as a source of methane, a permeable layer of sand at a thickness of 300 mm was further formed and finally covered with biocover. The biocover was composed of 60% of fine fraction waste, 20% soil and 20% compost, of the total volume. The experiment was created on 6 June 2022 and the first measurements were made two weeks later with CRDS equipment Picarro G2508. Measurements were made weekly for 4 months. The results of the study show that methane is released more forcefully after the first two months of application of the biocover. This is related to compost in the biocover, which has started to decompose actively, that methane oxidising micro-organisms develop on average after two months.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132464439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s19.37
N. Vladimir, Marija Koričan, Martina Voglar, Linda Zanki Duvnjak
Environmental friendliness, energy efficiency and sustainability are very important issues in all aspects of human lives. This is particularly true for shipping, including all its modes like long-distance, short-sea and inland shipping, where environmental regulations have become very strict in the last decade. On the one hand, fishing vessels are slightly out of these regulations, but on the other hand greening the fishing fleets is highly promoted by the European Union funding bodies as well as by the local authorities, while at the same time fishing vessels are rather aged with low energyefficient fossil fuel-based power systems. This paper illustrates aims, activities and current outcomes of a network of scientists and fishery cooperatives oriented to improve environmental friendliness of fishing vessels in the Adriatic Sea. In that process, an extensive fuel consumption measurement campaign involving 10 fishing vessels (9 purse seiners and 1 trawler) is being conducted and is offering an insight into emissions of these vessels and their relation to the operative profile and benefit for the society expressed in amounts and type of the caught fish.
{"title":"GREENING THE FISHERIES IN THE ADRIATIC SEA THROUGH THE COLLABORATIVE NETWORKS OF SCIENTISTS AND FISHERMEN","authors":"N. Vladimir, Marija Koričan, Martina Voglar, Linda Zanki Duvnjak","doi":"10.5593/sgem2022v/4.2/s19.37","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s19.37","url":null,"abstract":"Environmental friendliness, energy efficiency and sustainability are very important issues in all aspects of human lives. This is particularly true for shipping, including all its modes like long-distance, short-sea and inland shipping, where environmental regulations have become very strict in the last decade. On the one hand, fishing vessels are slightly out of these regulations, but on the other hand greening the fishing fleets is highly promoted by the European Union funding bodies as well as by the local authorities, while at the same time fishing vessels are rather aged with low energyefficient fossil fuel-based power systems. This paper illustrates aims, activities and current outcomes of a network of scientists and fishery cooperatives oriented to improve environmental friendliness of fishing vessels in the Adriatic Sea. In that process, an extensive fuel consumption measurement campaign involving 10 fishing vessels (9 purse seiners and 1 trawler) is being conducted and is offering an insight into emissions of these vessels and their relation to the operative profile and benefit for the society expressed in amounts and type of the caught fish.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125345994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s17.79
G. White, Bruce V. Millett, K. Maier, C. Tatar
Wind energy has grown in popularity and concomitantly so has the installation of wind turbines. As both alternative and green sources of energy, many may assume that wind energy is replacing fossil fuels such petroleum and natural gas and leading us to a more sustainable future. While renewable energy is part of the sustainability equation, another common attribute of achieving sustainability is the localization of production and consumption. In many ways, this almost automatically occurs with wind turbines because electricity does not transport well over long distances. However, despite this characteristic of electricity, it does not mean that electricity cannot be exported, especially when political geographies are considered. Indeed, this research will examine the U.S. state of South Dakota to demonstrate that wind-generated electricity can be treated from an economic point of view as an export commodity despite any local benefits that it generates. By examining statistics for electricity generation, it will be seen that wind energy is doing much more than replacing local electricity generation by fossil fuels. Further examination will show that a significant amount of wind-generated electricity in South Dakota is exported outside the state.
{"title":"WIND ENERGY AS AN EXPORT COMMODITY: THE CASE OF SOUTH DAKOTA","authors":"G. White, Bruce V. Millett, K. Maier, C. Tatar","doi":"10.5593/sgem2022v/4.2/s17.79","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s17.79","url":null,"abstract":"Wind energy has grown in popularity and concomitantly so has the installation of wind turbines. As both alternative and green sources of energy, many may assume that wind energy is replacing fossil fuels such petroleum and natural gas and leading us to a more sustainable future. While renewable energy is part of the sustainability equation, another common attribute of achieving sustainability is the localization of production and consumption. In many ways, this almost automatically occurs with wind turbines because electricity does not transport well over long distances. However, despite this characteristic of electricity, it does not mean that electricity cannot be exported, especially when political geographies are considered. Indeed, this research will examine the U.S. state of South Dakota to demonstrate that wind-generated electricity can be treated from an economic point of view as an export commodity despite any local benefits that it generates. By examining statistics for electricity generation, it will be seen that wind energy is doing much more than replacing local electricity generation by fossil fuels. Further examination will show that a significant amount of wind-generated electricity in South Dakota is exported outside the state.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"133 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121373426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s18.13
Gracia Kayombo, Michel Kalenga Wa Kalenga
The threat caused by the use of generic carbonaceous material for carbothermic reduction to globe has increased. Millions are being invested to protect the environment due to the global warming. A new generation of reductants is urgently sought to mitigate the threat. Biochars improvement for different usages is currently looked at. One of the ways to produce biochar is pyrolysis. The temperature and type of atmosphere in the furnace used play an important role on the quality of biochar produced. The current paper investigates the effect of temperature on the quality of biochar produced from raw palm nutshells through pyrolysis. The temperature was varied from 500-C to 900oC while the size of particles fed into the furnace ranged from 5mm to19mm. The quality of the raw palm nutshell and the biochar were assessed through characterization using proximate analysis and SEM-EDS to quantify the amount of fixed carbon and pores sizes corresponding to different sizes of the palm nutshell treated. The trends of fixed carbon and the change in temperature as well as the pores sizes were assessed in all the biochars produced and the correlation established. A tube furnace was used for the experiments with argon being blown to keep an inert atmosphere and avoid any destruction of carbon. A further correlation between the size of particles and fixed carbon was also assessed and a correlation established.
{"title":"PALM NUTSHELL BIOCHAR QUALITY CORRELATION WITH PYROLYSIS TEMPERATURE","authors":"Gracia Kayombo, Michel Kalenga Wa Kalenga","doi":"10.5593/sgem2022v/4.2/s18.13","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s18.13","url":null,"abstract":"The threat caused by the use of generic carbonaceous material for carbothermic reduction to globe has increased. Millions are being invested to protect the environment due to the global warming. A new generation of reductants is urgently sought to mitigate the threat. Biochars improvement for different usages is currently looked at. One of the ways to produce biochar is pyrolysis. The temperature and type of atmosphere in the furnace used play an important role on the quality of biochar produced. The current paper investigates the effect of temperature on the quality of biochar produced from raw palm nutshells through pyrolysis. The temperature was varied from 500-C to 900oC while the size of particles fed into the furnace ranged from 5mm to19mm. The quality of the raw palm nutshell and the biochar were assessed through characterization using proximate analysis and SEM-EDS to quantify the amount of fixed carbon and pores sizes corresponding to different sizes of the palm nutshell treated. The trends of fixed carbon and the change in temperature as well as the pores sizes were assessed in all the biochars produced and the correlation established. A tube furnace was used for the experiments with argon being blown to keep an inert atmosphere and avoid any destruction of carbon. A further correlation between the size of particles and fixed carbon was also assessed and a correlation established.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127682954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s17.75
Jarmila Zimmermannová, Richard Šmilňák, Omar Ameir, Michaela Perunova
Decarbonising the EU-s energy system is crucial to reach the 2030 climate objectives and the EU-s long-term strategy of achieving carbon neutrality by 2050. Based on these Green Deal goals and the current energy situation in Europe, it is highly important to focus on biofuel energy sources. Our research deals with the behaviour of households in the Czech Republic and changes in their consumption habits in the last decades. The main goal of this paper is to evaluate the development of the consumption of biofuels by households for heating purposes, in comparison with the consumption of fossil solid fuels (coal and coke) in the Czech Republic in the period 2010 - 2020. The second goal is to evaluate the influence of selected socioeconomic aspects/variables on the consumption of biofuels. Regarding biofuels, the analysis will focus on biomass for heating purposes, such as firewood, wood waste, pellets, and briquettes. Concerning socio-economic indicators, the analysis will be based on various data, such as GDP per capita, average wage, environmental taxation, environmental subsidies, etc. The authors will work with data published by the Czech Statistical Office, ministries, and other national authorities, as well as data from Eurostat. As a methodology, correlation and regression analysis will be used. The results will show the possible influence of selected socio-economic variables on the development of biofuel consumption by households. The recommendations will be formulated based on the obtained results.
{"title":"SOCIO-ECONOMIC ASPECTS OF BIOFUELS CONSUMPTION BY HOUSEHOLDS IN THE CZECH REPUBLIC","authors":"Jarmila Zimmermannová, Richard Šmilňák, Omar Ameir, Michaela Perunova","doi":"10.5593/sgem2022v/4.2/s17.75","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s17.75","url":null,"abstract":"Decarbonising the EU-s energy system is crucial to reach the 2030 climate objectives and the EU-s long-term strategy of achieving carbon neutrality by 2050. Based on these Green Deal goals and the current energy situation in Europe, it is highly important to focus on biofuel energy sources. Our research deals with the behaviour of households in the Czech Republic and changes in their consumption habits in the last decades. The main goal of this paper is to evaluate the development of the consumption of biofuels by households for heating purposes, in comparison with the consumption of fossil solid fuels (coal and coke) in the Czech Republic in the period 2010 - 2020. The second goal is to evaluate the influence of selected socioeconomic aspects/variables on the consumption of biofuels. Regarding biofuels, the analysis will focus on biomass for heating purposes, such as firewood, wood waste, pellets, and briquettes. Concerning socio-economic indicators, the analysis will be based on various data, such as GDP per capita, average wage, environmental taxation, environmental subsidies, etc. The authors will work with data published by the Czech Statistical Office, ministries, and other national authorities, as well as data from Eurostat. As a methodology, correlation and regression analysis will be used. The results will show the possible influence of selected socio-economic variables on the development of biofuel consumption by households. The recommendations will be formulated based on the obtained results.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132400280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s19.24
Michel Kalenga Wa Kalenga
The sintering process has been used for years to agglomerate ores to prepare the material for better operations in furnaces. Many research works have been conducted at bench scale and upscaled to industrial. The composition of the raw material, the homogenization of the feed, the challenges due to granulometry, moisture content, the distribution of gases in the burden, the impact of the fuel on the morphologies obtained in the sinters have been largely investigated. During sintering, fossil fuels such as coke breeze and coal are used for combustion to supply the required heat. From the combustion process gas emissions ensue. These gases may contain CO, CO2, NOx, SOx including volatile organic matters that are found in the fuel. Although some of the gases recondense on their way out of the sinter strand, mitigating technologies have not stopped being lurched for. Improvements were made but many challenges remain, and more efforts are required to not only better the quality of sinters produced but reduce the level of pollution. The current paper discusses some challenges and aspects such us the punctual inhomogeneity of the burden, the variability in oxygen potential in each point of the burden which influence the formation of phases present in the final sinters therefore their properties that need more understanding, pollution due to the use of fuel used and required solutions. The use of fourth industrial revolution as key element in the improvement on prediction and a fast-tracking response not only to the quality of the burden, sinters produced but also the lowering of pollution during sintering process.
{"title":"CHALLENGES DURING ORES SINTERING PROCESS AND POSSIBLE IMPACT OF THE USE OF ARTIFICIAL INTELLIGENCE","authors":"Michel Kalenga Wa Kalenga","doi":"10.5593/sgem2022v/4.2/s19.24","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s19.24","url":null,"abstract":"The sintering process has been used for years to agglomerate ores to prepare the material for better operations in furnaces. Many research works have been conducted at bench scale and upscaled to industrial. The composition of the raw material, the homogenization of the feed, the challenges due to granulometry, moisture content, the distribution of gases in the burden, the impact of the fuel on the morphologies obtained in the sinters have been largely investigated. During sintering, fossil fuels such as coke breeze and coal are used for combustion to supply the required heat. From the combustion process gas emissions ensue. These gases may contain CO, CO2, NOx, SOx including volatile organic matters that are found in the fuel. Although some of the gases recondense on their way out of the sinter strand, mitigating technologies have not stopped being lurched for. Improvements were made but many challenges remain, and more efforts are required to not only better the quality of sinters produced but reduce the level of pollution. The current paper discusses some challenges and aspects such us the punctual inhomogeneity of the burden, the variability in oxygen potential in each point of the burden which influence the formation of phases present in the final sinters therefore their properties that need more understanding, pollution due to the use of fuel used and required solutions. The use of fourth industrial revolution as key element in the improvement on prediction and a fast-tracking response not only to the quality of the burden, sinters produced but also the lowering of pollution during sintering process.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133134073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s19.42
The problem of carbon dioxide emission from the soil is relevant, since it affects the reduction of the soil organic carbon pool, thereby reducing its fertility and productivity. In addition, carbon dioxide emissions from the soil are a significant contributor to the greenhouse effect. The aim of this work was to evaluate the mineralizing activity of the microbial community of the soil of a new point of observation of carbon dioxide emissions, located in the previously little-studied territory of Russia, using such parameters as respiration activity, microbial biomass, and the number of copies of bacterial and fungal genes. The highest values of respiration activity and microbial biomass of the studied soil were 2.3*10-4 mgCO2*g-1*h-1 and 0.48 mg*kg-1 and were observed on 26.07.2022 and 15.06.2022, respectively. The maximum number of gene copies of bacteria and fungi in the soil was 6*106 (15.06.2022) and 3.78*104 (15.06.2022) gene copies*g-1, respectively. It was revealed that the respiration activity of the soil depended on the air temperature and soil moisture, while the microbial biomass depended mainly on the air temperature.
{"title":"MINERALIZING ACTIVITY OF THE SOIL MICROBIAL COMMUNITY OF THE CARBON POLYGON -CARBON POVOLZHIYE-","authors":"","doi":"10.5593/sgem2022v/4.2/s19.42","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s19.42","url":null,"abstract":"The problem of carbon dioxide emission from the soil is relevant, since it affects the reduction of the soil organic carbon pool, thereby reducing its fertility and productivity. In addition, carbon dioxide emissions from the soil are a significant contributor to the greenhouse effect. The aim of this work was to evaluate the mineralizing activity of the microbial community of the soil of a new point of observation of carbon dioxide emissions, located in the previously little-studied territory of Russia, using such parameters as respiration activity, microbial biomass, and the number of copies of bacterial and fungal genes. The highest values of respiration activity and microbial biomass of the studied soil were 2.3*10-4 mgCO2*g-1*h-1 and 0.48 mg*kg-1 and were observed on 26.07.2022 and 15.06.2022, respectively. The maximum number of gene copies of bacteria and fungi in the soil was 6*106 (15.06.2022) and 3.78*104 (15.06.2022) gene copies*g-1, respectively. It was revealed that the respiration activity of the soil depended on the air temperature and soil moisture, while the microbial biomass depended mainly on the air temperature.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114923616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s18.09
Yerkin Bektay, Gaukhar Turysbekova, A. Altynbek, Bauyrzhan Shiderin, B. Duysebaev
Uranium in situ recovery (ISR) is an effective method for extracting uranium from sandstone deposits. Many uranium deposits are characterized by the presence of associated metals: gold, platinum group metals and rare earth metals. For one of the uranium deposits in Kazakhstan, studies were carried out on sampling from productive wells at the ISR of uranium. An analysis was carried out for the content of uranium, rare earth elements, scandium, germanium, yttrium and other metals. For the study, samples were taken from productive wells used for uranium ISL. Studies have shown the presence of valuable associated metals in almost all productive wells where samples were taken. The analysis showed the possibility of extracting associated metals from productive solutions. It is noted that a higher effect can be achieved on mothballed wells when using leaching solutions with a higher redox potential. This will make it possible to obtain an additional economic effect from suspended (closed) wells, the number of which is over 70% of the total number of wells drilled in this field.
{"title":"INVESTIGATION OF THE DISTRIBUTION OF ASSOCIATED METALS IN PRODUCTIVE WELLS FOR IN SITU RECOVERY (ISR) OF URANIUM","authors":"Yerkin Bektay, Gaukhar Turysbekova, A. Altynbek, Bauyrzhan Shiderin, B. Duysebaev","doi":"10.5593/sgem2022v/4.2/s18.09","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s18.09","url":null,"abstract":"Uranium in situ recovery (ISR) is an effective method for extracting uranium from sandstone deposits. Many uranium deposits are characterized by the presence of associated metals: gold, platinum group metals and rare earth metals. For one of the uranium deposits in Kazakhstan, studies were carried out on sampling from productive wells at the ISR of uranium. An analysis was carried out for the content of uranium, rare earth elements, scandium, germanium, yttrium and other metals. For the study, samples were taken from productive wells used for uranium ISL. Studies have shown the presence of valuable associated metals in almost all productive wells where samples were taken. The analysis showed the possibility of extracting associated metals from productive solutions. It is noted that a higher effect can be achieved on mothballed wells when using leaching solutions with a higher redox potential. This will make it possible to obtain an additional economic effect from suspended (closed) wells, the number of which is over 70% of the total number of wells drilled in this field.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128318387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s17.78
Maria Francesca Lucente
The energy community, as a new mode of citizen participation in the European renewable energy market, highlights the close connection between energy decentralisation, territorial development, and the crucial role of local authorities in doing so. In the context of territorial development and keeping within the ongoing decentralisation processes, participation and sustainability is particularly important. Also, the very idea of promoting community energy, leads to the affirmation of an innovative system of energy governance, based on horizontal subsidiarity identifying these actors as the protagonists of a new local development, favouring forms of selfgovernment of particularly fragile territories and the most marginal areas. Since there is a common ground between the local authority and the energy community, this paper will also specifically highlight how local authorities are called upon to play an active role on the one hand, to pursue the public interest and the promotion of the common good. While on the other, the energy communities who have objectives and a juridical nature, makes them interests of the public authority. In fact, it can-t be argued that from the perspective of the energy community being a non-profit organization, it is aimed at promoting the protection of the economic interest of its members, as well as promoting a wider environmental and social benefit, which also generally extends to the entire local community.
{"title":"THE ENERGY COMMUNITY AS A TOOL FOR LOCAL DEVELOPMENT: NEW GOVERNANCE OF THE ENERGY MARKET","authors":"Maria Francesca Lucente","doi":"10.5593/sgem2022v/4.2/s17.78","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s17.78","url":null,"abstract":"The energy community, as a new mode of citizen participation in the European renewable energy market, highlights the close connection between energy decentralisation, territorial development, and the crucial role of local authorities in doing so. In the context of territorial development and keeping within the ongoing decentralisation processes, participation and sustainability is particularly important. Also, the very idea of promoting community energy, leads to the affirmation of an innovative system of energy governance, based on horizontal subsidiarity identifying these actors as the protagonists of a new local development, favouring forms of selfgovernment of particularly fragile territories and the most marginal areas. \u0000Since there is a common ground between the local authority and the energy community, this paper will also specifically highlight how local authorities are called upon to play an active role on the one hand, to pursue the public interest and the promotion of the common good. While on the other, the energy communities who have objectives and a juridical nature, makes them interests of the public authority. In fact, it can-t be argued that from the perspective of the energy community being a non-profit organization, it is aimed at promoting the protection of the economic interest of its members, as well as promoting a wider environmental and social benefit, which also generally extends to the entire local community.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130378676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2022-12-27DOI: 10.5593/sgem2022v/4.2/s17.64
I. Samfira, N. Horablaga, C. Bârliba, L. Barliba, Saida Feier-David
Renewable energy is the energy produced from renewable resources replenished naturally on a human scale from sources: sunlight, wind, rain, tides, waves, geothermal heat, etc. Renewable energy induces a negligible ecological footprint that is quite limited in the area of operation, while at the same time providing obvious ecological benefits and contributing to the sustainable development of human societies. Today in 2022, renewable energy sources are considered alternatives to fossil fuels because they contribute a lot to the reduction of greenhouse gas emissions, but especially to the diversification of the energy supply and to the reduction of dependence on the market-s increasingly expensive fossil fuels (especially oil and gas). Romania produces energy from renewable sources with a much higher weight than the average of the EU, concomitantly it occupies a leading place among the countries dependent on coal to generate electricity. From 2020 the electricity supplied in Romania to final customers comes in a percentage of 54.53% from conventional sources and in the percentage of 45.47% from renewable sources. In other words, we believe that the European Green Pact will contribute in an important way to achieving climate neutrality by reducing carbon emissions produced by the energy sector because the EU's goal for the year 2050 is to achieve neutrality in the emission of greenhouse gases.
{"title":"COMPARATIVE ANALYSIS OF THE RENEWABLE ENERGY PRODUCTION POTENTIAL IN ROMANIA","authors":"I. Samfira, N. Horablaga, C. Bârliba, L. Barliba, Saida Feier-David","doi":"10.5593/sgem2022v/4.2/s17.64","DOIUrl":"https://doi.org/10.5593/sgem2022v/4.2/s17.64","url":null,"abstract":"Renewable energy is the energy produced from renewable resources replenished naturally on a human scale from sources: sunlight, wind, rain, tides, waves, geothermal heat, etc. Renewable energy induces a negligible ecological footprint that is quite limited in the area of operation, while at the same time providing obvious ecological benefits and contributing to the sustainable development of human societies. \u0000Today in 2022, renewable energy sources are considered alternatives to fossil fuels because they contribute a lot to the reduction of greenhouse gas emissions, but especially to the diversification of the energy supply and to the reduction of dependence on the market-s increasingly expensive fossil fuels (especially oil and gas). \u0000Romania produces energy from renewable sources with a much higher weight than the average of the EU, concomitantly it occupies a leading place among the countries dependent on coal to generate electricity. From 2020 the electricity supplied in Romania to final customers comes in a percentage of 54.53% from conventional sources and in the percentage of 45.47% from renewable sources. \u0000In other words, we believe that the European Green Pact will contribute in an important way to achieving climate neutrality by reducing carbon emissions produced by the energy sector because the EU's goal for the year 2050 is to achieve neutrality in the emission of greenhouse gases.","PeriodicalId":234250,"journal":{"name":"22nd SGEM International Multidisciplinary Scientific GeoConference Proceedings 2022, Energy and Clean Technologies, VOL 22, ISSUE 4.2","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130529851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：