Radiological risk assessment of 238U, 232Th and 40K in Thailand coastal sediments at selected areas proposed for nuclear power plant sites

Kritsananuwat, Rawiwan; Sahoo, Sarata Kumar; Fukushi, Masahiro; Pangza, Karnwalee; Chanyotha, Supitcha

doi:10.1007/s10967-014-3376-7

Cited by 29 publications

(2 citation statements)

References 17 publications

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“…In general, concentrations of uranium and thorium isotopes obtained from PM harbours are higher compared to EM harbours indicating more U-Th-rich minerals in the drainage basin of Peninsular Malaysia. Furthermore, activity concentrations of thorium isotopes in sediment samples from eastern and western coasts of Peninsular Malaysia can be considered high compared to other locations such as the Gulf of Thailand [18], the eastern coast of the Thai gulf [32] and northeastern Taiwan [6].…”

Section: Methods Validationmentioning

confidence: 99%

Accumulation of Natural Uranium Isotopes in Malaysian Harbour Sediment

Ah¹,

Car²

2017

J Oceanogr Mar Res

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Section: Methods Validationmentioning

confidence: 99%

Accumulation of Natural Uranium Isotopes in Malaysian Harbour Sediment

Ah¹,

Car²

2017

J Oceanogr Mar Res

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“…When the particle size was less than 200 meshes, their adsorption capacities reached the maximum of 22.8, 19.5 and 16 mg/g -1 , respectively. Kritsananuwat et al [11] found that due to an increase in surface area per unit mass in small-grain sediments and negatively-charged surfaces of soil particles, the activity concentration of uranium in the soils tended to be enriched in the small-grained sediments and depleted in coarse-grained sediment. From the microcosmic configuration of three soil horizons (Fig.…”

Section: The Particle Size Of the Soilsmentioning

confidence: 99%

Adsorption Characteristics of U(VI) in the Soil Horizons Near Uranium Tailing Impoundment Area

Yang¹,

Zhang²,

Wu³

et al. 2019

IJET

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Distribution of uranium (Ⅵ) between soil solids and solutions is a key parameter in assessing the risk to the biosphere of disposing uranium-rich waste products from uranium (U) ore mining and metallurgy. The different soil horizons have unequal physical and chemical properties and effect uranium adsorption and transformation on them. In this experiment, the effects of the soil horizons (eluvial horizon/E horizon, illuvial horizon/B horizon and parent material horizon/C horizon), particle size, contact times and temperature were discussed at 30 mg/L uranium solution. The maximum adsorption capacity of uranium for E and B horizon soils are 23.60 and 22.82 mg/g, respectively at 45 min, and for C horizon soil is 13.05 mg/g at 60 min. The temperature and particle size shows different effects with different soil horizons. Uranium adsorption capacity increased by temperature from 15 to 25℃ and had a slight down at 25 to 55℃ for E and B horizon. But it increased by temperature from 15 to 55 ℃ with C horizon. Uranium adsorption capacities are inversely proportion to grain-size scale for the three soil horizons. In addition, the results of XRF, and SEM on three soil horizons also confirmed that there are some differences among the soil profile on the compositional elements and particle size distribution. The experiment results may be helpful to predict the transformation of U in soil and remediation program for tailing impoundment leachate.

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Assessment Modelling and the Evaluation of Radiological and Chemical Impacts of Uranium on Humans and the Environment

Thorne¹

2019

Uranium in Plants and the Environment

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Radiological risk assessment of 238U, 232Th and 40K in Thailand coastal sediments at selected areas proposed for nuclear power plant sites

Cited by 29 publications

References 17 publications

Accumulation of Natural Uranium Isotopes in Malaysian Harbour Sediment

Accumulation of Natural Uranium Isotopes in Malaysian Harbour Sediment

Adsorption Characteristics of U(VI) in the Soil Horizons Near Uranium Tailing Impoundment Area

Assessment Modelling and the Evaluation of Radiological and Chemical Impacts of Uranium on Humans and the Environment

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