Natural Radioactivity of Feed Coal and Its by-products in Barapukuria 2×125 MW Coal Fired Thermal Power Plant, Dinajpur, Bangladesh

Hasan, Md. Mehade; Ali, Miami Abdul Hassan; Paul, Debasish; Haydar, M. A.; Islam, Shahidul

doi:10.9790/4861-0563238

Cited by 9 publications

(7 citation statements)

References 4 publications

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“…The external hazard index (H ex ) is used for quantifying gamma ray-acquired radiation hazards. The maximum value of 1, corresponding to the radium equivalent's upper limit at 370 Bq/kg, constitutes the optimum acceptable value for external hazard index [22,25]. Eq 2 is used for computing H ex [24]:…”

Section: Radiological Hazard Assessmentmentioning

confidence: 99%

Quantification of U, Th and specific radionuclides in coal from selected coal fired power plants in South Africa

2020

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Most of South Africa's energy is derived from the combustion of coal in pulverized coal-fired power plants (CFPP). However, when compared with the rest of the world, limited information regarding the main radioactive elements (U and Th) and specific radionuclides of interest (K 40 , Ra 226 and Th 232) from South African CFPP is available in the public domain. This paper aims to quantify the U, Th and specific radionuclides found in the coal used in selected South African CFPP in comparison to world averages found in literature. The U and Th concentrations were obtained by ICP-MS. The main radionuclides, K 40 , Ra 226 and Th 238 , were quantified using gamma spectrometry. The U concentration and Th concentrations for the coal used in all the power plants was above the world average of 1.9 mg/kg and 3.2 mg/kg respectively. The coals with the highest Th content originated from the Mpumalanga power plant, while the U content in the Freestate power plant samples was the highest of the three. The concentrations of the K 40 were between 88.43±10.75-110.76±8.92 Bq/kg, which are inline with world averages of 4-785 Bq/kg. Similarly, the Ra 226 and Th 232 values were between 21.69±2.83-52.63±4.04 Bq/kg and 19.91±1.24-22.97±1.75 Bq/kg respectively, which are also in line with the world averages of 1-206 Bq/kg and 1-170 Bq/kg respectively. Radiological hazard indices such as radium equivalent (Ra eq); external hazard index (H ex) and internal hazard index (H in), that were estimated from these average radionuclide concentrations were less than the prescribed values found in literature. This indicated that no significant health risk was posed by the coal being used from these coal fields.

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Section: Radiological Hazard Assessmentmentioning

confidence: 99%

Quantification of U, Th and specific radionuclides in coal from selected coal fired power plants in South Africa

2020

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“…The ever growing challenge of population explosion, human civilization, rapid urbanization, and high level industrialization has led to increasing demand for energy and power generation all over the world [ 1 – 3 ]. Whereas many nations are developing their nuclear energy base and others expanding their biomass and wind energy capacities, coal has proven to be the most abundant, most versatile, readily available, and easily assessable source of fossil fuel [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Quantification and Radiological Risk Estimation Due to the Presence of Natural Radionuclides in Maiganga Coal, Nigeria

et al. 2016

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Following the increasing demand of coal for power generation, activity concentrations of primordial radionuclides were determined in Nigerian coal using the gamma spectrometric technique with the aim of evaluating the radiological implications of coal utilization and exploitation in the country. Mean activity concentrations of 226Ra, 232Th, and 40K were 8.18±0.3, 6.97±0.3, and 27.38±0.8 Bq kg-1, respectively. These values were compared with those of similar studies reported in literature. The mean estimated radium equivalent activity was 20.26 Bq kg-1 with corresponding average external hazard index of 0.05. Internal hazard index and representative gamma index recorded mean values of 0.08 and 0.14, respectively. These values were lower than their respective precautionary limits set by UNSCEAR. Average excess lifetime cancer risk was calculated to be 0.04×10−3, which was insignificant compared with 0.05 prescribed by ICRP for low level radiation. Pearson correlation matrix showed significant positive relationship between 226Ra and 232Th, and with other estimated hazard parameters. Cumulative mean occupational dose received by coal workers via the three exposure routes was 7.69 ×10−3 mSv y-1, with inhalation pathway accounting for about 98%. All radiological hazard indices evaluated showed values within limits of safety. There is, therefore, no likelihood of any immediate radiological health hazards to coal workers, final users, and the environment from the exploitation and utilization of Maiganga coal.

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“…Often in radioactivity research, attentions are mostly given to gamma emitters detection and quantification even in an environment where it is possible to have alpha and beta emitters (Gu & Yaprak, 2010;Lu et al, 2012;Mehade Hassan, Ali, Paul, Haydar & Islam, 2014). While it is true that gamma rays have the highest penetrating power when compared to alpha and beta particles, the effects of alpha and beta particles within the body either through inhalation or ingestion are far more detrimental because of their ionising power.…”

Section: Introductionmentioning

confidence: 99%

Gross alpha and beta radioactivity in surface soil and drinkable water around a steel processing facility

Ogundare

Adekoya

2015

Journal of Radiation Research and Applied Sciences

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The mean gross alpha and beta activities in surface soil and drinkable water in the surrounding communities of a steel processing company, following a continuous exposure of workers and dwellers is determined using a low background Gas-less counting system with a solid state silicon PIPS detector for alpha and beta detection. The average activities for gross alpha and beta in soil ranged between 48.5 ± 15.8e64.0 ± 10.0Bq/kg and 411.5 ± 11.5e2710.0 ± 150.0Bq/kg respectively, whereas in water it ranged between 0.0064 ± 0.0001e0.0182 ± 0.0001 Bq/l and 0.046 ± 0.001e0.126 ± 0.001 Bq/l respectively. The average annual committed effective dose from intake of water was between 0.0304 mSv and 0.0678 mSv which is lower than the recommended reference level for ingested dose from drinkable water.

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Natural Radioactivity of Feed Coal and Its by-products in Barapukuria 2×125 MW Coal Fired Thermal Power Plant, Dinajpur, Bangladesh

Cited by 9 publications

References 4 publications

Quantification of U, Th and specific radionuclides in coal from selected coal fired power plants in South Africa

Quantification of U, Th and specific radionuclides in coal from selected coal fired power plants in South Africa

Quantification and Radiological Risk Estimation Due to the Presence of Natural Radionuclides in Maiganga Coal, Nigeria

Gross alpha and beta radioactivity in surface soil and drinkable water around a steel processing facility

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