CEST Proceedings are published under the ISSN 2944-9820.
SusNisia: Circular economy for biogenic residues for the North Aegean – case studies for Islands of Chios and Lesvos
Baur F., Porzig M., Lekkas D.
Topic:
Biowaste
The North Aegean Islands of Chios and Lesvos set recycling goals for organic residues from MSW. Both islands, in line with the National and the Regional Plans for Municipal Waste Management, have selected the approach of mechanical-biological stabilization of MSW in combination with separated...Read more
The influence of methane emission and hard coal production on air quality and greenhouse effect in 1994-2017 in the Upper Silesian Coal Basin (Poland)
(Corresponding) Dreger M.
Topic:
Air pollution
The Upper Silesian Coal Basin (USCB) is the largest coal basin in Poland and one of the largest in Europe. It is the most industrialized region in Poland. The main natural resource and energy raw material is hard coal which was produced by 65 mines in the early nineties. The USCB geology is very...Read more
Keywords:
The Upper Silesia Coal Basin, hard coal production, methane emission, greenhouse effect, air pollution
Conversion of coal fly ash by-products into high-grade zeolite by a quasi natural crystallization process
Zgureva D., (Corresponding) Boycheva S.
Topic:
Hazardous waste management
Recently, the synthesis of zeolites from coal fly ash (FA) has been extensively studied regarding the process optimization, industrial upscaling and technological commercialization. The obtaining of fly ash zeolites (FAZ) is based on the transformation of aluminosilicates of FA by alkaline...Read more
Heat of adsorption in the fly ash zeolite – CO2 system at dynamic conditions
Zgureva D., (Corresponding) Boycheva S., Marinov I., Miteva S., Asenov A.
Topic:
Climate change mitigation and adaptation
The global warming represents one of the main world problems in the recent decades as it is considered that electricity production by coal burning is responsible for 40 % of the total CO2 emissions. The post-combustion capture of CO2 based on physical adsorption has the highest potential for...Read more
Keywords:
Post-combustion carbon capture, Adsorption, Coal ash zeolites, Heat of adsorption
Thermal swing adsorption for post-combustion carbon dioxide capture
(Corresponding) Boycheva S., Zgureva D., Miteva S., Marinov I., Lazarova H., Popova M.
Topic:
Climate change mitigation and adaptation
The advantages of post-combustion capture of CO2 based on physical adsorption have been extensively studied in the last years regarding to the economy, environmental compatibility, and process’ efficiency. The industrialization of the process involves the construction of adsorption columns in which...Read more
Keywords:
Green house gasses, Coal combustion, Carbon capture technologies, Thermal swing adsorption
Coal ash zeolite as a self-catalytic-chemisorption system for conversion of carbon dioxide to hydrocarbons
(Corresponding) Boycheva S., Zgureva D.
Topic:
Climate change mitigation and adaptation
At present, the developments of sustainable carbon capture technologies are of the main scientific and technological priority required to mitigate the over generation of greenhouse gases. Three CO2 clean energy production approaches have been outlined: pre-combustion capture, oxy-fuel combustion...Read more
Keywords:
Carbon dioxide utilization, carbon capture, coal ash zeolites, conversion of CO2 to fuel
The limitation of the methane (CH4) emission in the Upper Silesian Coal Basin as a result of the Polish Mining Group closing program.
Dreger M.
Topic:
Air pollution
Hard coal mining is responsible for 9% of the worldwide methane emission to the atmosphere. Methane is the second strongest greenhouse gas after carbon dioxide, but its radiative power is 25-30 times stronger than the radiative power of CO2 .In the Polish reality, hard coal mining is one of the...Read more
Keywords:
Methane emission, hard coal mining, the Upper Silesian Coal Basin (USCB), the greenhouse effect, air pollution
Studies on the CO2 adsorption mechanism of Na-X and Na-Ca-X coal fly ash zeolites
(Corresponding) Boycheva S., Lazarova H., Zgureva D., Popova M.
Topic:
Climate change mitigation and adaptation
Coal fly ash zeolites (CFAZ) of Na-X and Na-Ca-X types were synthesized using as raw materials fly ashes generated by the combustion of lignite from various deposits with low and medium limestone content. It has been found that CFAZs with higher calcium content superior those containing less...Read more
Studies on the CO2 adsorption onto coal fly ash zeolites at elevated pressures
(Corresponding) Boycheva S., Zgureva D.
Topic:
Climate change mitigation and adaptation
Coal fly ash zeolites (CFAZs) of Na-X type were prepared by ultrasonic-assisted double stage fusion-hydrothermal synthesis from lignite coal fly ash at two different fusion temperatures 550 and 800 C. The detailed surface analyses were performed experimentally using N2 physisorption technique and...Read more
Towards a sustainable water resources management in post-lignite era: the case of Western Macedonia, Greece
(Corresponding) Farmaki P., Tranoulidis A., Sotiropoulou R., Tagaris E.
Topic:
Water policy, management and society
In 2018, Public Power Corporation (PPC) employed 15,000 employees in the energy sector, mainly in lignite production, providing electricity to 6,900,000 customers in Greece. The total confirmed lignite reserves amount to 5 billion tons mostly resourced (1.8 billion tons) in the Western Macedonia...Read more
Keywords:
post lignite era, water resources management, Water Framework Directive, Energy, coal
