scholarly journals Environmental Aspects of Coal Combustion Residues from Thermal Power Plants

10.5772/56038 ◽  
2013 ◽  
Author(s):  
Gurdeep Singh
Keyword(s):  
Coal Combustion ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Environmental Aspects ◽  
Combustion Residues

The Latest Research in Mongolia on the Utilization of Coal Combustion By-Products

2021 ◽  
Vol 323 ◽  
pp. 8-13
Author(s):  
Jadambaa Temuujin ◽  
Damdinsuren Munkhtuvshin ◽  
Claus H. Ruescher
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Coal Combustion ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Power Stations ◽  
Thermal Power Stations ◽  
Coal Ashes ◽  
By Products

With a geological reserve of over 170 billion tons, coal is the most abundant energy source in Mongolia with six operating thermal power stations. Moreover, in Ulaanbaatar city over 210000 families live in the Ger district and use over 800000 tons of coal as a fuel. The three thermal power plants in Ulaanbaatar burn about 5 million tons of coal, resulting in more than 500000 tons of coal combustion by-products per year. Globally, the ashes produced by thermal power plants, boilers, and single ovens pose serious environmental problems. The utilization of various types of waste is one of the factors determining the sustainability of cities. Therefore, the processing of wastes for re-use or disposal is a critical topic in waste management and materials research. According to research, the Mongolian capital city's air and soil quality has reached a disastrous level. The main reasons for air pollution in Ulaanbaatar are reported as being coal-fired stoves of the Ger residential district, thermal power stations, small and medium-sized low-pressure furnaces, and motor vehicles. Previously, coal ashes have been used to prepare advanced materials such as glass-ceramics with the hardness of 6.35 GPa, geopolymer concrete with compressive strength of over 30 MPa and zeolite A with a Cr (III) removal capacity of 35.8 mg/g. Here we discuss our latest results on the utilization of fly ash for preparation of a cement stabilized base layer for paved roads, mechanically activated fly ash for use in concrete production, and coal ash from the Ger district for preparation of an adsorbent. An addition of 20% fly ash to 5-8% cement made from a mixture of road base gave a compressive strength of ~ 4MPa, which exceeds the standard. Using coal ashes from Ger district prepared a new type of adsorbent material capable of removing various organic pollutants from tannery water was developed. This ash also showed weak leaching characteristics in water and acidic environment, which opens up an excellent opportunity to utilize.

Distribution of natural radioactivity in coal and combustion residues of thermal power plants

2014 ◽  
Vol 300 (1) ◽  
pp. 17-22 ◽  
Author(s):  
R. C. Bhangare ◽  
M. Tiwari ◽  
P. Y. Ajmal ◽  
S. K. Sahu ◽  
G. G. Pandit
Keyword(s):  
Natural Radioactivity ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Combustion Residues

Investigation of Environmental-Concern Trace Elements in Coal and Their Combustion Residues from Thermal Power Plants in Eastern India

2019 ◽  
Vol 28 (4) ◽  
pp. 1505-1520 ◽  
Author(s):  
Debasree Saha ◽  
Debashis Chatterjee ◽  
Sanchita Chakravarty ◽  
Tarit Roychowdhury
Keyword(s):  
Trace Elements ◽  
Power Plants ◽  
Environmental Concern ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Eastern India ◽  
Combustion Residues

scholarly journals Review of the investigations of pulverized coal combustion processes in large power plants in laboratory for thermal engineering and energy: Part B

2019 ◽  
Vol 23 (Suppl. 5) ◽  
pp. 1611-1626
Author(s):  
Predrag Stefanovic ◽  
Dejan Cvetinovic ◽  
Zoran Markovic ◽  
Milic Eric ◽  
Simeon Oka ◽  
...  
Keyword(s):  
Coal Combustion ◽  
Power Plants ◽  
Thermal Power ◽  
Pulverized Coal ◽  
Thermal Engineering ◽  
Thermal Power Plants ◽  
Pulverized Coal Combustion ◽  
Research Projects ◽  
Large Power ◽  
Combustion Processes

Paper presents short review of research problems, applied methods for solving problems and main results obtained by the researchers in Laboratory for Thermal Engineering and Energy (LTE) of the "Vinca" Institute of Nuclear Sciences, Belgrade, Serbia dealing with pulverized coal combustion processes and technologies for reduction of pollutions problems at thermal power plants in a period since 2000. The presented results were published in numerous studies realized for different users, Ph. D., Masters, and Specialist thesis, in international and domestic scientific journals and monographs, presented at numerous international and domestic scientific conferences, etc. Presented research projects and results of applied research projects realized at pulverized coal combustion thermal power plants clearly show that LTE team was involved in key activities of rehabilitation and modernization, including implementation of best available technologies for pollution reduction at thermal power plants, in the region of South East Europe.

scholarly journals Improvement of environmental aspects of thermal power plant operation by advanced control concepts

2012 ◽  
Vol 16 (3) ◽  
pp. 759-772 ◽  
Author(s):  
Robert Mikulandric ◽  
Drazen Loncar ◽  
Dejan Cvetinovic ◽  
Gabriel Spiridon ◽  
Daniel Schneider
Keyword(s):  
Power Plant ◽  
Thermal Power Plant ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Environmental Aspects ◽  
Advanced Control ◽  
Low Efficiency ◽  
And Control ◽  
Plant Components

The necessity of the reduction of greenhouse gas emissions, as formulated in the Kyoto Protocol, imposes the need for improving environmental aspects of existing thermal power plants operation. Improvements can be reached either by efficiency increment or by implementation of emission reduction measures. Investments in refurbishment of existing plant components or in plant upgrading by flue gas desulphurization, by primary and secondary measures of nitrogen oxides reduction, or by biomass co-firing, are usually accompanied by modernisation of thermal power plant instrumentation and control system including sensors, equipment diagnostics and advanced controls. Impact of advanced control solutions implementation depends on technical characteristics and status of existing instrumentation and control systems as well as on design characteristics and actual conditions of installed plant components. Evaluation of adequacy of implementation of advanced control concepts is especially important in Western Balkan region where thermal power plants portfolio is rather diversified in terms of size, type and commissioning year and where generally poor maintenance and lack of investments in power generation sector resulted in high greenhouse gases emissions and low efficiency of plants in operation. This paper is intended to present possibilities of implementation of advanced control concepts, and particularly those based on artificial intelligence, in selected thermal power plants in order to increase plant efficiency and to lower pollutants emissions and to comply with environmental quality standards prescribed in large combustion plant directive.

scholarly journals TRANSBOUNDARY IMPACT OF THE QUALITY OF ATMOSPHERIC AIR OF UKRAINE’S THERMAL POWER PLANTS DURING COAL COMBUSTION

2019 ◽  
Vol 0 (3) ◽  
pp. 154-160
Author(s):  
Valerii Ivanovych Vitko ◽  
Hryhorii Dmytrovych Kovalenko ◽  
Hanna Volodymyrivna Khabarova ◽  
Hennadii Borysovych Varlamov
Keyword(s):  
Coal Combustion ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Atmospheric Air

Distribution of trace elements in coal and combustion residues from five thermal power plants in India

2011 ◽  
Vol 86 (4) ◽  
pp. 349-356 ◽  
Author(s):  
R.C. Bhangare ◽  
P.Y. Ajmal ◽  
S.K. Sahu ◽  
G.G. Pandit ◽  
V.D. Puranik
Keyword(s):  
Trace Elements ◽  
Power Plants ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Distribution Of Trace Elements ◽  
Combustion Residues
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