検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年
検索結果: 2 件中 1件目~2件目を表示
  • 1

発表形式

Initialising ...

選択項目を絞り込む

掲載資料名

Initialising ...

発表会議名

Initialising ...

筆頭著者名

Initialising ...

キーワード

Initialising ...

使用言語

Initialising ...

発行年

Initialising ...

開催年

Initialising ...

選択した検索結果をダウンロード

口頭

Mobility of U and REE on colloids in groundwater and its quality-controlled sampling at the Mizunami Underground Research Laboratory

宗本 隆志; 大森 一秋; 岩月 輝希

no journal, , 

The mobility of colloids and their association with U and rare earth elements (REEs) in deep granitic groundwater were investigated at the Mizunami Underground Research Laboratory. The groundwater and colloids were sampled from boreholes and fractures in the drift wall. For groundwater sampling from boreholes, anthropogenic colloids formed on the borehole wall randomly contaminate groundwater. The mobile anthropogenic colloids can be removed by replacing contaminated groundwater in the borehole. In contrast, groundwater sampled from drift wall, the effects of natural occurring colloids on the groundwater chemistry were almost negligible. Changes in the concentrations of U in the groundwater sampled from boreholes were associated with the anthropogenic colloids. The mobility of U was facilitated by mobile anthropogenic colloids. The REE was concentrated with large particles in the groundwater sampled from fractures in the drift wall and its mobility was associated with natural REE bearing materials originating from deep granitic groundwater. Our results suggest the mobility of analogue elements are facilitated by different colloidal materials in the deep granitic groundwater.

口頭

Accumulation of radiocesium in filamentous fungi

大貫 敏彦; 坂本 文徳; 香西 直文; 山崎 信哉*; Yu, Q.

no journal, , 

森林で生息する糸状菌の放射性Csの環境中挙動への影響を調べるため、放射性Csの糸状菌への濃集について実験により検討した。鉱物を培地に添加しない場合には、糸状菌の菌糸は放射性Csを細胞内に取り込んだ。鉱物が存在する場合には、濃集が減少し、濃集の減少は鉱物のKdが大きいほど大きかった。

2 件中 1件目~2件目を表示
  • 1