Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Takashi Munemoto"'
Autor:
Solongo Tsetsgee, Altansukh Ochir, Akihiro Okuyama, Taivanbat Batbold, Enkhjin Odgerel, Enkh-Uur Munkhsukd, Masato Honda, Yoshio Takahashi, Takashi Munemoto, Ariuntungalag Yunden, Keisuke Fukushi
Publikováno v:
ACS ES&T Water. 1:1686-1694
Publikováno v:
Applied Geochemistry. 82:134-145
Understanding radionuclide transport processes deep underground is indispensable for safety assessments of the geological disposal of radioactive wastes. This study investigated the behavior of rare earth elements (REEs) associated with suspended par
Autor:
Seiya Nagao, Yoshio Takahashi, Ochir Altansukh, Akihiro Okuyama, Tsetsgee Solongo, Taivanbat Batbold, Hisanori Iwai, Keisuke Fukushi, Takashi Munemoto, Ariuntungalag Yunden
Publikováno v:
Applied Geochemistry. 123:104800
River water and sediments collected from the Erdenet, Gavil, and Khangal Rivers, near the Erdenet Cu–Mo mine were analyzed for their rare earth elements (REE) and yttrium (YREE) contents. Surface water samples were also collected from the tailing p
Publikováno v:
Journal of Hazardous Materials. 304:110-117
The metastability of monohydrocalcite (CaCO3·H2O: MHC) suggests high reactivity to dissolved trace elements. Using kinetic and isotherm sorption experiments with different reaction times (24h, 48h), As(V) sorption on MHC was examined to elucidate As
Publikováno v:
Chemical Geology. 417:58-67
Rare earth elements (REEs) combined with yttrium (YREE) in deep groundwater from granite and fracture-filling calcite are being studied at the Mizunami Underground Research Laboratory (MIU, Tono area, central Japan). The groundwater was sampled from
Publikováno v:
Science and Technology of Advanced Materials, Vol 12, Iss 6, p 064702 (2011)
The formation conditions, solubility and stability of monohydrocalcite (MHC, CaCO3centerdotH2O), as well as sorption behaviors of toxic anions on MHC, are reviewed to evaluate MHC as a remediation material for hazardous oxyanions. MHC is a rare miner
Externí odkaz:
https://doaj.org/article/f9dd2d41ccbb4951b15f77592e0c458e
Publikováno v:
Chemical Geology. 387:133-143
Monohydrocalcite was transformed to aragonite in the presence of Pb in solution to understand the Pb redistribution mechanisms and kinetics during the transformation. Monohydrocalcite (Ca0.98Mg0.02CO3·1.00H2O) was synthesized, and along with Pb stoc
Publikováno v:
Geochimica et Cosmochimica Acta. 100:217-231
Monohydrocalcite (MHC: CaCO3·H2O) is a rare mineral in geological settings. Its rare occurrence indicates that MHC forms in unique environmental conditions in nature. Both laboratory studies and natural observations have indicated that the formation
Autor:
Takashi Munemoto, Keisuke Fukushi
Publikováno v:
Journal of Mineralogical and Petrological Sciences. 103:345-349
Monohydrocalcite (CaCO3·H2O; MHC) is a rare mineral in geological settings. It is metastable with respect to calcite and aragonite. This metastability of MHC is considered to make it a rare mineral in geological settings. Alteration experiments of M
Publikováno v:
Progress in Earth and Planetary Science. 1
Colloids and their association with analogue elements, uranium, and rare earth elements (REEs), in deep granitic groundwater were investigated at the Mizunami Underground Research Laboratory (MIU). Groundwater was sampled from underground boreholes a