Development of Dry-distilllation Apparatus for Substantial Reduction of Solid Radioactive Wastes Volume

开发干馏装置大幅减少放射性固体废物量

• 批准号: 06558086
• 负责人: KURIHARA Norio
• 金额: $ 6.46万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-06558086/
• 关键词: Animal wastes containing radioisotopes; Dry-distilllation of solid wastes; Volume reduction by dry-distilllation; Weight reduction by dry-distilllation; Isotope distribution after the dry-distilllation; Recovery ratio of isotopes; Temperature contro

(1) The original structure of the dry-distilllation apparatus was modified in order to keep the inner temperature homogeneous, to effectively cool the exhaust-gas, and to wash the inside-wall with an appropriate solvent.By using this modified version of the apparatus, following results were obtained.(2) Dry-distilllation of animal wastes containing ^3H,^<14>C,^<32>P,^<35>S,^<45>Ca, ^<51>Cr and ^<125>I produced a highly condensed residues that were stable during a long period of storage time.(3) Recovery of the isotopes after the dry-distilllation was almost quantitative in every case.(4) Dry-distilllation of non-animal solid wastes such as paper wastes and plastic wastes was also successful to substantially reduce the waste volume.(5) In the process of dry-distilllation of solid wastes including papers and plastics, most radioisotopes tested could be recovered quantitatively. However, ^<35>S-labeled compounds were trapped inside of the pipe in the apparatus, and require further improvements of the process to completely recover them.

(1)为了保持干燥器内部温度均匀，有效地冷却废气，并采用适当的溶剂清洗内壁，对干燥器的原结构进行了改进，取得了如下结果：(2)对含有^3H、^<14>C、^<32>P、^<35>S、^<45>Ca、^<51>Cr和^<125>I的动物粪便进行干燥处理，产生高度浓缩的残留物，这些残留物在长时间的储存中是稳定的。(3)在每种情况下，干蒸发后同位素的回收几乎都是定量的。(4)非动物固体废物（如废纸及塑胶废物）的干式焚化亦成功大幅减少废物量。(5)在纸张、塑料等固体废物的干法焚烧过程中，绝大多数被测放射性同位素都能定量回收。然而，2S<35>标记的化合物被捕获在设备的管道内，需要进一步改进工艺以完全回收它们。

项目成果

斉藤和実、宮武秀男、小堀浩成、栗原紀夫: "Pretreatment of animal wastes containing radioisotopes with drv-distillation" Health Physics. 69. 117-120 (1995)

Kazumi Saito、Hideo Miyatake、Hiroshige Kobori、Norio Kurihara：“用 drv 蒸馏法预处理含有放射性同位素的动物废物”健康物理学 69. 117-120 (1995)。

Kazumi Saito, Hideo Miyatake, Hiroshige Kobori and Norio Kurihara: "Pretreatment of animal wastes containing radioisotopes with dry-distilllation" Health Physics. 69. 117-120 (1995)

Kazumi Saito、Hideo Miyatake、Hiroshige Kobori 和 Norio Kurihara：“干蒸馏法预处理含有放射性同位素的动物废物”健康物理学。

斉藤和実、宮武秀男、小堀浩成、栗原紀夫: "Pretreatment of animal wastes containing radioisotopes with dry-distillation" Health Physics. 69. 117-120 (1995)

Kazumi Saito、Hideo Miyatake、Hiroshige Kobori、Norio Kurihara：“干蒸馏法预处理含有放射性同位素的动物废物”健康物理学 69. 117-120 (1995)。

斉藤和実、宮武秀男、小堀浩成、栗原紀夫: "Pretreatment of animal wastes containing radioisotopes with dry-distillation" Health Physics. 67(in press). (1995)

Kazumi Saito、Hideo Miyatake、Hiroshige Kobori、Norio Kurihara：“用干蒸馏法预处理含有放射性同位素的动物废物”健康物理学 67（出版中）。

斉藤和実、宮武秀男、栗原紀夫: "乾留による動物性アイソトープ廃棄物の前処理について" Isotope News. 1995.7.10-12 (1995)

Kazumi Saito、Hideo Miyatake、Norio Kurihara：“通过碳化预处理动物同位素废物”同位素新闻 1995.7.10-12 (1995)。