Search Results - "Jang-Soon Kwon"

Iodide retention characteristics on oxidized Cu coupon in saline and alkaline environments: Perspectives on high-level radioactive waste disposal by Goo, Ja-Young, Choi, Seonggyu, Namgung, Seonyi, Jo, Yongheum, Lee, Seung Yeop, Kwon, Jang-Soon, Jo, Ho Young

“…[Display omitted] •Iodide retention by a Cu canister under potential repository conditions was studied.•CuI(s) formed on the Cu coupon surface was…”
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Diffusion behavior of THO, Sr, Cs, and Am through concrete and its chemical degradation by Park, Chung-Kyun, Park, Tae-Jin, Lee, Jae-Kwang, Kwon, Jang-Soon

“…To understand the transport processes in a repository silo for radioactive waste, the diffusion behavior of tritium (THO), strontium (Sr), cesium (Cs), and…”
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Hydrochemical evaluation of the influences of mining activities on river water chemistry in central northern Mongolia by Batsaikhan, Bayartungalag, Kwon, Jang-Soon, Kim, Kyoung-Ho, Lee, Young-Joon, Lee, Jeong-Ho, Badarch, Mendbayar, Yun, Seong-Taek

“…Although metallic mineral resources are most important in the economy of Mongolia, mining activities with improper management may result in the pollution of…”
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Bioleaching of Pyrrhotite with Bacterial Adaptation and Biological Oxidation for Iron Recovery by Kim, Bong-Ju, Koh, Yong-Kwon, Kwon, Jang-Soon

“…The microbially mediated recovery of valuable metals contained in mining waste presents an economical alternative to conventional hydrometallurgical processes…”
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Effect of hydrothermal alteration of Ca-bentonite in K-rich solutions with different pHs on the physicochemical, swelling, and Cs adsorption properties by Lee, Ji Hoon, Kim, Jinseok, Kwon, Jang-Soon, Jo, Ho Young

“…Understanding the stability of the bentonite buffer when exposed to cement leachates at temperatures exceeding 100°C is crucial for optimizing the design of…”
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Multi-approach assessment of groundwater biogeochemistry: Implications for the site characterization of prospective spent nuclear fuel repository sites by Park, Su-Young, Zhang, Yidan, Kwon, Jang-Soon, Kwon, Man Jae

“…The disposal of spent nuclear fuel in deep subsurface repositories using multi-barrier systems is considered to be the most promising method for preventing…”
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Effects of EDTA on the leaching behaviors of Cs(I) and Co(II) from cement waste forms by Goo, Ja-Young, Choi, Seonggyu, Kim, Bong-Ju, Jeong, Jongtae, Kwon, Jang-Soon, Jo, Ho Young

“…Cementation is extensively employed for immobilizing radionuclides in low- and intermediate-level radioactive wastes generated during the decommissioning of…”
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Immobile crystallization of radioactive iodide by redox transformation of a low crystalline copper phase by Lee, Seung Yeop, Seo, Hyo Jin, An, Ha-Rim, Kwon, Jang-Soon

“…Here we show an innovative way to effectively scavenge highly mobile radioiodide and to dramatically reduce its waste volume through a spontaneous phase…”
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Bentonite alteration and retention of cesium and iodide ions by Ca-bentonite in alkaline and saline solutions by Goo, Ja-Young, Kim, Bong-Ju, Kwon, Jang-Soon, Jo, Ho Young

“…The nuclide retention capacity of bentonite can be affected by changes in the repository environments, such as alkaline and saline conditions. This study…”
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Temperature-dependent microbial reactions by indigenous microbes in bentonite under Fe(III)- and sulfate-reducing conditions by Park, Su-Young, Zhang, Yidan, O’Loughlin, Edward J., Jo, Ho Young, Kwon, Jang-Soon, Kwon, Man Jae

“…Bentonite is a promising buffer material for constructing spent nuclear fuel (SNF) repositories. However, indigenous microbes in bentonite can be introduced to…”
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Wetting and swelling behaviors of unsaturated compacted Korean Ca-bentonite in contact with a cement-equilibrated fluid by Lee, Ji Hoon, Kwon, Jang-Soon, Jo, Ho Young

“…This study aims to investigate the wetting and swelling pressure characteristics of unsaturated compacted Ca-bentonite in contact with a cement-equilibrated…”
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Removal of divalent heavy metals (Cd, Cu, Pb, and Zn) and arsenic(III) from aqueous solutions using scoria: Kinetics and equilibria of sorption by Kwon, Jang-Soon, Yun, Seong-Taek, Lee, Jong-Hwa, Kim, Soon-Oh, Jo, Ho Young

“…Kinetic and equilibrium sorption experiments were conducted on removal of divalent heavy metals (Pb(II), Cu(II), Zn(II), Cd(II)) and trivalent arsenic…”
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Hydrochemical and isotopic comparison of crystalline bedrock aquifers in two geological disposal research sites in South Korea using samples collected during and after borehole drilling by Yu, Soonyoung, Kwon, Jang-Soon, Do, Hyun-Kwon, Chae, Gitak, Park, Junghoon, Park, SunJu, Choi, Jaehoon, Yun, Seong-Taek

“…Hydrochemical and isotopic characteristics of crystalline bedrock aquifers were investigated down to 500 m below ground level at two geological disposal…”
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The Use of Ion Exchange Membranes for Isotope Analyses on Soil Water Sulfate: Laboratory Experiments by Kwon, Jang‐Soon, Mayer, Bernhard, Yun, Seong‐Taek, Nightingale, Michael

“…To investigate the potential use of anion exchange membranes (plant root simulator [PRS] probes) for isotope investigations of the soil sulfur cycle,…”
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Ground penetrating radar for fracture mapping in underground hazardous waste disposal sites: A case study from an underground research tunnel, South Korea by Baek, Seung-Ho, Kim, Seung-Sep, Kwon, Jang-Soon, Um, Evan Schankee

“…Secure disposal or storage of nuclear waste within stable geologic environments hinges on the effectiveness of artificial and natural radiation barriers…”
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Geochemical and microbial characteristics of seepage water and mineral precipitates in a radwaste disposal facility impacted by seawater intrusion and high alkalinity by Ham, Baknoon, Kwon, Jang-Soon, Boyanov, Maxim I., O'Loughlin, Edward J., Kemner, Kenneth M., Kwon, Man Jae

“…The construction of an underground facility can dramatically change the quality, flow direction, and level of groundwater. It may also impact subsurface…”
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Fluorine geochemistry in bedrock groundwater of South Korea by Chae, Gi-Tak, Yun, Seong-Taek, Mayer, Bernhard, Kim, Kyoung-Ho, Kim, Seong-Yong, Kwon, Jang-Soon, Kim, Kangjoo, Koh, Yong-Kwon

“…High fluoride concentrations (median = 4.4 mg/L) in deep bedrock groundwater of South Korea prevent the usage of it as a drinking water source. The…”
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Tracing the movement and the fate of injected CO2 at the IEA GHG Weyburn-Midale CO2 Monitoring and Storage project (Saskatchewan, Canada) using carbon isotope ratios by Mayer, Bernhard, Shevalier, Maurice, Nightingale, Michael, Kwon, Jang-Soon, Johnson, Gareth, Raistrick, Mark, Hutcheon, Ian, Perkins, Ernie

“…► Stable carbon isotopes are an excellent tracer for injected CO2 at Weyburn. ► Carbon isotopes can be used to trace the movement of injected CO2. ► Carbon…”
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Characterization of the Purified Ca-type Bentonil-WRK Montmorillonite and Its Sorption Thermodynamics With Cs(I) and Sr(II) by Choi, Seonggyu, Kim, Bong-Ju, Seo, Surin, Lee, Jae-Kwang, Kwon, Jang-Soon

“…Thermodynamic sorption modeling can enhance confidence in assessing and demonstrating the radionuclide sorption phenomena onto various mineral adsorbents. In…”
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Leaching Behavior of Cesium, Strontium, Cobalt, and Europium from Immobilized Cement Matrix by Goo, Ja-Young, Kim, Bong-Ju, Kang, Myunggoo, Jeong, Jongtae, Jo, Ho Young, Kwon, Jang-Soon

“…Numerous low-level and intermediate-level radioactive wastes are generated from the decommissioning processes of nuclear power plants; these wastes are…”
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