Biomineralogical method and apparatus for removing cesium ions
AssigneeKorea Atomic Energy Research Institute
InventorsSeung Yeop LEE, Jin Ha HWANG, Min-Hoon BAIK, Bum Kyoung SEO, Minhee LEE
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Abstract
Provided are a biomineralogical method for removing cesium ions. The method for removing cesium ions, the method comprising: adding metal-reducing bacteria, an iron source, and a sulfur source into a solution containing the cesium ions to convert the cesium ions into a solid mineral incorporating cesium. The method for removing cesium ions according to the present invention has advantages in that the cesium ions may be removed with high efficiency and small volume even in the case in which competing ions are present at a high concentration like sea water.
Claims15
A method for removing cesium ions, the method comprising:
- adding metal-reducing bacteria, an iron source, and a sulfur source into a solution containing the cesium ions to convert the cesium ions into a solid mineral incorporating cesium.
An apparatus for removing cesium ions, the apparatus comprising:
- an anaerobic tank into which a solution containing cesium ions is introduced and to which a sulfur source and a pH adjustment reagent are supplied;
- and
- a microbial purification tank that is in connection with the anaerobic tank and to which metal-reducing bacteria, an iron source, and an electron donor are supplied,
- wherein cesium ions are converted into a solid mineral incorporating cesium by the activity of metal-reducing bacteria to thereby be precipitated in the microbial purification tank, such that the cesium ions in the solution containing cesium ions are removed in a form of compact sludge.
Dependencies are inferred from the claim text.