scholarly journals Leaching characteristics of wastes from Kemerkoy (Mugla-Turkey) power plant

2013 ◽  
Vol 2 (1) ◽  
pp. 51-57
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Extraction Procedure ◽  
Bottom Ash ◽  
Coal Ash ◽  
Toxicity Tests ◽  
Western Coast ◽  
Ash Disposal

A main problem related to coal ash disposal is the heavy metal content of the residue. In this regard, experimental results of numerous studies have indicated that toxic trace metals may leach when fly ash and bottom ash contacts with water. In this study, fly ash and bottom ash samples obtained from Kemerköy thermal power plant, located on the south-western coast of Turkey, were subjected to toxicity tests such as the extraction procedures (EP) and toxicity characteristic leaching procedures (TCLP) of the U.S. Environmental Protection Agency (U.S. EPA), the so-called Method A extraction procedure of the American Society of Testing and Material (ASTM). When Pb and Cd concentrations, analysed according to EP and TCLP, were considered, Kemerköy fly and bottom ash can be classified as a hazardous waste under the principles of the Federal Resource Conservation and Recovery Act (RCRA). Based on the geochemical analyses carried out, it was also determined that several toxic trace elements, such as Pb, Zn, Cd, Cu and Co were enriched at the fly and bottom ash of Kemerköy thermal power plant.

Compressive Strength and Density of Cementless Unfired Lightweight Brick Utilizing Coal Ash from Coal-Fired Thermal Power Plant

2013 ◽  
Vol 594-595 ◽  
pp. 527-531
Author(s):  
Mohamad Ezad Hafez Mohd Pahroraji ◽  
Hamidah Mohd Saman ◽  
Mohamad Nidzam Rahmat ◽  
Kartini Kamaruddin ◽  
Ahmad Faiz Abdul Rashid
Keyword(s):  
Compressive Strength ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Bottom Ash ◽  
Coal Ash ◽  
Hydrated Lime ◽  
Raw Material ◽  
The World ◽  
Blastfurnace Slag

Millions tons of coal ash which constitute of fly ash and bottom ash were produced annually throughout the world. They were significant to be developed as masonry brick to substitute the existing widely used traditional material such as clay and sand brick which were produced from depleting and dwindling natural resources. In the present study, the coal ash from coal-fired thermal power plant was used as the main raw material for the fabrication of cementless unfired lightweight brick. The binder comprising of Hydrated Lime (HL)-activated Ground Granulated Blastfurnace Slag (GGBS) system at binding ratio 30:70, 50:50 and 70:30 were used to stabilize the coal ash in the fabrication process of the brick. Foam was used to lightweight the brick. The compressive strength and ambient density were evaluated on the brick. The results indicated that the brick incorporating HL-GGBS system achieved higher strength of 20.84N/mm2 at 28 days compare to the HL system with strength of 13.98N/mm2 at 28 days. However, as the quantity of foam increase at 0%, 25%, 50%, 75% and 100%, the strength and density for the brick decreased.

Mössbauer characterization of feed coal, ash and fly ash from a thermal power plant

2015 ◽  
Vol 232 (1-3) ◽  
pp. 141-148 ◽  
Author(s):  
F. Reyes Caballero ◽  
S. A. Martínez Ovalle ◽  
M. Moreno Gutiérrez
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Coal Ash ◽  
Feed Coal

scholarly journals Effect of Fly Ash Disposal on Ground Water Quality near Parichha Thermal Power Plant, Jhansi: A Case Study

2015 ◽  
Vol 10 (2) ◽  
pp. 572-580 ◽  
Author(s):  
Shubham Kanchan ◽  
Vinit Kumar ◽  
Krishna Yadav ◽  
Neha Gupta ◽  
Sandeep Arya
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Ground Water ◽  
Water Samples ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Management Problem ◽  
Lead And Cadmium ◽  
Physico Chemical ◽  
Ash Disposal

Thermal power plant generates a huge amount of fly ash on combustion of coal which is becoming a major environmental issue. Thermal power plants are greatly facing a fly ash management problem. Open dumping of fly ash can deteriorate the groundwater quality by runoff. In the present investigation, the ground water samples were collected from nearby areas of Parichha Thermal Power Plant at six locations during the period of Jan 2014 to May 2014. The samples were taken to the laboratory and analyzed for physico-chemical properties and heavy metal content. The physico-chemical analysis was done for the parameters like pH, Turbidity, Temperature, Electrical Conductivity, Alkalinity, Total Dissolved Solids, Total Hardness, Calcium Hardness and Magnesium Hardness. The concentration of Turbidity, EC and Alkalinity was exceeding the standard at all locations and shows that the groundwater of the area is not fit for drinking. The ground water samples were also analyzed for the presence of lead and cadmium and it was found that lead was exceeding the limit although cadmium was found within the limit.

FLY ASH FROM THERMAL POWER PLANT, RAW MATERIAL FOR GLASS-CERAMIC

2013 ◽  
Vol 12 (2) ◽  
pp. 337-342 ◽  
Author(s):  
Firuta Goga ◽  
Roxana Dudric ◽  
Calin Cormos ◽  
Florica Imre ◽  
Liliana Bizo ◽  
...  
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Glass Ceramic ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Raw Material ◽  
Plant Raw Material

scholarly journals THE USE OF ASH FROM THERMAL POWER PLANT DUMPS IN THE PRODUCTION OF PORTLAND CEMENT

2022 ◽  
Vol 1 (15) ◽  
pp. 171-174
Author(s):  
Andrey Savenkov ◽  
Viktorya Kolomiets
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
Portland Cement ◽  
Thermal Power Plant ◽  
Energy Intensity ◽  
Thermal Power ◽  
Technical Solution

The article considers a technical solution for the introduction of pozzolan additives into the cement after grinding clinker. Such additives are the fly ash of the CHP and ash from the ash dump. The use of ash in the composition of cement reduces its cost and energy intensity of its production

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