TY - GEN
T1 - 137Cs adsorption and desorption on marine sediments from the upper Gulf of Thailand
AU - Saengkul, Chutarat
AU - Pakkong, Panee
AU - Pachana, Katavut
AU - Sawangwong, Pichan
PY - 2013
Y1 - 2013
N2 - Sediments play an important role on fate in the diffusion of radionuclide in aquatic systems. In this study, the investigation of the adsorption/desorption kinetic of 137Cs in two different characteristic of marine sediment samples (organic matter, CEC, and clay content). Batch experiment was carried out from the Upper of Gulf Thailand. The results have shown that there is a significant percentage of 137Cs is adsorbed in both marine sediments during the first 48 hour that increased adsorption percentage to 82 and 86% and after that become to stable. On the other hand, the desorption of 137Cs was found both marine sediment were desorbed less than 10% and become to stable desorption after 24 hours. Among different marine sediments (St.1 and St.21), the Kd value (distribution coefficients) of 137Cs was different which Kd of sediment from station 1 more than station 21(342.9 and 247.5 L/kg respectively). Differences in the characteristics of marine sediments affect to different the Kd value.
AB - Sediments play an important role on fate in the diffusion of radionuclide in aquatic systems. In this study, the investigation of the adsorption/desorption kinetic of 137Cs in two different characteristic of marine sediment samples (organic matter, CEC, and clay content). Batch experiment was carried out from the Upper of Gulf Thailand. The results have shown that there is a significant percentage of 137Cs is adsorbed in both marine sediments during the first 48 hour that increased adsorption percentage to 82 and 86% and after that become to stable. On the other hand, the desorption of 137Cs was found both marine sediment were desorbed less than 10% and become to stable desorption after 24 hours. Among different marine sediments (St.1 and St.21), the Kd value (distribution coefficients) of 137Cs was different which Kd of sediment from station 1 more than station 21(342.9 and 247.5 L/kg respectively). Differences in the characteristics of marine sediments affect to different the Kd value.
KW - Adsorption
KW - Cs
KW - Desorption
KW - Distribution coefficient
UR - https://www.scopus.com/pages/publications/84884935143
U2 - 10.4028/www.scientific.net/AMR.770.339
DO - 10.4028/www.scientific.net/AMR.770.339
M3 - Conference contribution
AN - SCOPUS:84884935143
SN - 9783037857786
T3 - Advanced Materials Research
SP - 339
EP - 342
BT - Applied Physics and Material Applications
T2 - 2013 International Conference on Applied Physics and Material Applications, ICAPMA2013
Y2 - 20 February 2013 through 22 February 2013
ER -