書誌事項
- タイトル別名
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- Separation System for HLLW by Using CMPO Impregnated Silica Adsorbent
- CMPO ガンシン キュウチャクザイ ニ ヨル コウレベル ホウシャセイ ハイエキ カクシュ ブンリ システム
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The process concept of separation system of high-level radioactive liquid waste (HLLW) using an octylphenyl-N,N-diisobutylcarbomoyl phosphine oxide impregnated silica adsorbent (CMPO-adsorbent) was designed for separation of Cs and Sr. The process consists of two separation steps. Each step is composed of three CMPO-adsorbent columns, and the adsorbents are used in rotation for separation of HLLW. That is, the system has six columns. Uranium and Zirconium inhibit the adsorption of minor actinoids (MA) and lanthanoids. Therefore, the adsorption and removal of U and Zr from the HLLW occur in the 1st step. Adsorbed U and Zr are eluted using citric acid. The HLLW from the 1st step is sent to the 2nd step to adsorb MA, lanthanoids and other transition metals. MA and lanthanoids are eluted using 0.01 mol/dm3 HNO3, and Mo is recovered by using oxalic acid. The process required a large amount of citric acid and oxalic acid, but these eluents can be reused, therefore the amounts of spent acids are reduced. The column adopted a cartridge form in consideration of the exchange of adsorbent. The bed volume of the adsorbent is 0.67 m3/column. The size of separation plant has 60 m length, 80 m breadth and 36 m height.<br>
収録刊行物
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- 日本原子力学会和文論文誌
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日本原子力学会和文論文誌 6 (2), 196-204, 2007
一般社団法人 日本原子力学会
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詳細情報 詳細情報について
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- CRID
- 1390001205187346560
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- NII論文ID
- 10018763675
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- NII書誌ID
- AA11643165
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- COI
- 1:CAS:528:DC%2BD2sXhtVahurzE
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- ISSN
- 21862931
- 13472879
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- NDL書誌ID
- 8884315
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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