(A) study on the radionuclide transport by bacteria in geologic media = 지하매질에서 박테리아에 의한 방사성 핵종의 이동에 대한 연구

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The purpose of this paper is to provide a methodology to develop a predictive model based on a conceptual three phase system and to investigate the influence of bacteria and their generation on the transport of radionuclide in porous and fractured media. The mass balance for bacteria, substrate and radionuclide were formulated. To illustrate the model simply, an equilibrium condition was assumed to partition the substrate, bacteria and radionuclide concentrations between the solid soil matrix, aqueous phase, rock matrix and bacterial surface. From the numerical calculation of the radionuclide transport in the presence of bacteria, it was found that the growth of bacteria and supplied primary substrate as limiting or stimulating growth factor of bacteria are the most important factors of the radionuclide transport. We also found that, depend on the transport of bacteria the temporal and spatial distribution of radionuclide concentration was significantly altered. The model proposed in this study will improve the evaluation of the role of the bacteria in the transport of radionuclide in groundwater systems. Furthermore, this model would be usefully utilized in analyzing the important role of colloidal particulate on the overall performance of radioactive waste safety.
Advisors
Lee, Kun-Jairesearcher이건재researcher
Description
한국과학기술원 : 원자력공학과,
Publisher
한국과학기술원
Issue Date
1997
Identifier
114520/325007 / 000925390
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 원자력공학과, 1997.2, [ xii, 130 p. ]

Keywords

Migration; Transport; Bacteria; Radionuclide; 지하매질; 방사성핵종; 이동; 박테리아

URI
http://hdl.handle.net/10203/48871
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=114520&flag=dissertation
Appears in Collection
NE-Theses_Ph.D.(박사논문)
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