模擬廃棄物含有リン添加ホウケイ酸ガラスの作製及び特性評価

Preparation and characterization of simulated waste borosilicate glasses including phosphorus

永井 崇之  ; 小林 秀和 ; 捧 賢一; 大山 孝一 ; 佐藤 誠一*; 猪瀬 毅彦*; 畠山 清司*

Nagai, Takayuki; Kobayashi, Hidekazu; Sasage, Kenichi; Oyama, Koichi; Sato, Seiichi*; Inose, Takehiko*; Hatakeyama, Kiyoshi*

P添加ガラス原料に模擬廃液を混合溶融して模擬廃棄物ガラスを作製し、浸出試験による長期化学的安定性を評価した結果、Mo溶出を抑える効果があることを確認した。また、ガラス徐冷時の結晶化挙動等を評価した結果、P添加ガラスの結晶化挙動は現行ガラス組成と同等であることを確認した。

We estimated the long chemical stability of simulated waste borosilicate glass samples reacting with water in a closed case by the immersion test in alkaline solution and confirmed the effect which restrains the elution of molybdenum to the solution from the glass samples made with the frit including phosphorus. After cooling the simulated waste glass samples from melt condition, the crystallization behavior in the glass samples made with the frit including phosphorus was confirmed similar to that of the sample made with a present frit composition.