Kesan sifat fizikokimia terhadap penyerapan dan pengangkutan 137Cs dalam tanah siri rengam dan selangor)

Translated title of the contribution: Effects of physico-chemical soil properties on the adsorption and transport of 137Cs in rengam and selangor soil series

Zidan Mohamed M Houmani, Amran Ab. Majid, Shahidan Radiman, Zaharudin Ahmad

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this study, the adsorption of 137Cs in soil samples were quantified using the distribution coefficient (Kd-value). The distribution coefficients (Kd) of 137Cs in Rengam and Selangor soil series were determined by a batch technique. The Malaysian soil series (Rengam and Selangor soil series) were collected systematically at three different depths (0-20 cm, 20-40 cm and 40-60 cm) at two different sites in Malaysia. The batch Kd tests were used with deionized water that was spiked with 137Cs tracer to the soil sample and the activities of 137Cs in the supernatant solution were measured by a low background but high efficiency well-type HPGe detector. Several physicochemical soil properties were also characterised for each soil type. Pearson's correlation and stepwise multiple regression models were applied at 0.05 level of significance throughout all analysis to determine the relationships and influences between distribution coefficients (Kd-value) of 137Cs with physicochemical soil properties of each soil type. The calculated Kd-value for Rengam and Selangor soil series at several depth were determined to be in the range of 202 to 1739 ml.g-1 and 3389 to 5919 ml.g-1 respectively. The results indicate that the stepwise multiple regression model incorporating pH and porosity influence the Kd-value of 137Cs in Rengam Soil Series and exhibits an R2 equal to 0.922 indicating that 92.2% of total variation has been explained by the regression model. The regression model also reveals that cation exchange capacity, bulk density, porosity and free manganese oxide (Mn2+) have influence on the Kd-values of 137Cs in Selangor soil series and exhibits an R2 equal to 0.997 indicating 99.7% of total variation. Therefore, the sorption coefficients in relation to the environmental factors including physicochemical properties can be used to predict and design the radionuclide transport and safety assessment models.

Original languageUndefined/Unknown
Pages (from-to)94-102
Number of pages9
JournalMalaysian Journal of Analytical Sciences
Volume16
Issue number2
Publication statusPublished - 2012

Fingerprint

Soils
Adsorption
Porosity
Deionized water
Radioisotopes
Density (specific gravity)
Cations
Sorption
Detectors

Keywords

  • Cs
  • K-value
  • Physicochemical soil properties

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Kesan sifat fizikokimia terhadap penyerapan dan pengangkutan 137Cs dalam tanah siri rengam dan selangor). / Houmani, Zidan Mohamed M; Ab. Majid, Amran; Radiman, Shahidan; Ahmad, Zaharudin.

In: Malaysian Journal of Analytical Sciences, Vol. 16, No. 2, 2012, p. 94-102.

Research output: Contribution to journalArticle

Houmani, Zidan Mohamed M ; Ab. Majid, Amran ; Radiman, Shahidan ; Ahmad, Zaharudin. / Kesan sifat fizikokimia terhadap penyerapan dan pengangkutan 137Cs dalam tanah siri rengam dan selangor). In: Malaysian Journal of Analytical Sciences. 2012 ; Vol. 16, No. 2. pp. 94-102.
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abstract = "In this study, the adsorption of 137Cs in soil samples were quantified using the distribution coefficient (Kd-value). The distribution coefficients (Kd) of 137Cs in Rengam and Selangor soil series were determined by a batch technique. The Malaysian soil series (Rengam and Selangor soil series) were collected systematically at three different depths (0-20 cm, 20-40 cm and 40-60 cm) at two different sites in Malaysia. The batch Kd tests were used with deionized water that was spiked with 137Cs tracer to the soil sample and the activities of 137Cs in the supernatant solution were measured by a low background but high efficiency well-type HPGe detector. Several physicochemical soil properties were also characterised for each soil type. Pearson's correlation and stepwise multiple regression models were applied at 0.05 level of significance throughout all analysis to determine the relationships and influences between distribution coefficients (Kd-value) of 137Cs with physicochemical soil properties of each soil type. The calculated Kd-value for Rengam and Selangor soil series at several depth were determined to be in the range of 202 to 1739 ml.g-1 and 3389 to 5919 ml.g-1 respectively. The results indicate that the stepwise multiple regression model incorporating pH and porosity influence the Kd-value of 137Cs in Rengam Soil Series and exhibits an R2 equal to 0.922 indicating that 92.2{\%} of total variation has been explained by the regression model. The regression model also reveals that cation exchange capacity, bulk density, porosity and free manganese oxide (Mn2+) have influence on the Kd-values of 137Cs in Selangor soil series and exhibits an R2 equal to 0.997 indicating 99.7{\%} of total variation. Therefore, the sorption coefficients in relation to the environmental factors including physicochemical properties can be used to predict and design the radionuclide transport and safety assessment models.",
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AB - In this study, the adsorption of 137Cs in soil samples were quantified using the distribution coefficient (Kd-value). The distribution coefficients (Kd) of 137Cs in Rengam and Selangor soil series were determined by a batch technique. The Malaysian soil series (Rengam and Selangor soil series) were collected systematically at three different depths (0-20 cm, 20-40 cm and 40-60 cm) at two different sites in Malaysia. The batch Kd tests were used with deionized water that was spiked with 137Cs tracer to the soil sample and the activities of 137Cs in the supernatant solution were measured by a low background but high efficiency well-type HPGe detector. Several physicochemical soil properties were also characterised for each soil type. Pearson's correlation and stepwise multiple regression models were applied at 0.05 level of significance throughout all analysis to determine the relationships and influences between distribution coefficients (Kd-value) of 137Cs with physicochemical soil properties of each soil type. The calculated Kd-value for Rengam and Selangor soil series at several depth were determined to be in the range of 202 to 1739 ml.g-1 and 3389 to 5919 ml.g-1 respectively. The results indicate that the stepwise multiple regression model incorporating pH and porosity influence the Kd-value of 137Cs in Rengam Soil Series and exhibits an R2 equal to 0.922 indicating that 92.2% of total variation has been explained by the regression model. The regression model also reveals that cation exchange capacity, bulk density, porosity and free manganese oxide (Mn2+) have influence on the Kd-values of 137Cs in Selangor soil series and exhibits an R2 equal to 0.997 indicating 99.7% of total variation. Therefore, the sorption coefficients in relation to the environmental factors including physicochemical properties can be used to predict and design the radionuclide transport and safety assessment models.

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