Distribution of PAHs in coal ashes from the thermal power plant and fluidized bed combustion system; estimation of environmental risk of ash disposal

2020 ◽  
Vol 266 ◽  
pp. 115282 ◽  
Author(s):  
Jovana Z. Buha-Marković ◽  
Ana D. Marinković ◽  
Stevan Đ. Nemoda ◽  
Jasmina Z. Savić
Keyword(s):  
Power Plant ◽  
Fluidized Bed ◽  
Environmental Risk ◽  
Thermal Power Plant ◽  
Thermal Power ◽  
Combustion System ◽  
Fluidized Bed Combustion ◽  
Coal Ashes ◽  
Ash Disposal

scholarly journals Cost Management of a CFBC Boiler in a Thermal Power Plant

2019 ◽  
Vol 8 (6S2) ◽  
pp. 883-887
Keyword(s):  
Power Plant ◽  
Fluidized Bed ◽  
Thermal Power Plant ◽  
Circulating Fluidized Bed ◽  
Thermal Power ◽  
Thermal Capacity ◽  
Fluidized Bed Combustion ◽  
Magnetic Separator ◽  
Power Stations ◽  
Bed Material

India, being the world's third most noteworthy power maker with all out exhibited purpose of containments of 344.69 GW, contributing 68% of thermal Capacity. Subsequently, Thermal power producing stations are basic. As an electrical architect, exceptional consideration ought to be taken to decrease coal utilization in Thermal power generating stations. In Thermal power producing stations, boilers utilized are Circulating Fluidized Bed Combustion (CFBC) and Atmospheric Fluidized Bed Combustion (AFBC). These boilers utilize bed material to keep up warmth in the boiler. 210MW and under 210 MW generators in the Thermal power producing stations are utilizing CFBC boilers. After a nearby examination of thermal power stations, it is discovered that the bed material including over 5% of engaging parts are open in the bed material which is horrendous. This happens where magnetic separator at the bed material stacking point is missing or far off. From this time forward it is proposed to introduce a magnetic separator at the bed material stacking point. With this establishment of magnetic separator hardware, boiler efficiency can be reached out to 2.1% more, to keep up the required temperature and to maintain a strategic distance from boiler stoppages. An endeavor has been made to perceive the usage required presenting attractive separator and it has been discovered that the reward period is obliged to roughly 1 to 2 years if the engaging sections in the bed material are 5%and 10% respectively. The Proposed issue is endeavored with MATLAB condition and cost examination of thermal power plant is separated and existing synthesis information. The test outcomes displayed that the proposed framework gives an attainable game-plan gigantic theory saves and liberal for consistent assignments.

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.

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.

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