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Bipolar electrolysis for tritium recovery from weakly active tritiated water

Sylver Heinze, Pierre Giroux, Didier Ducret, Jean-Claude Colson, Bruno Vuillemin2001年Fusion Engineering and DesignIF 1.7出版社

AbstractDetritiation facilities produce low activity tritiated water from which tritium cannot be recovered. Bipolar electrolysis, based on the electrochemical permeation of hydrogen and its isotopes through Pd–Ag alloy membranes, allows tritiated water enrichment together with negligible gaseous tritium release. Our purpose is to enrich water from 500 Ci/l (1.85×1013 Bq/l) to more than 2000 Ci/l (7.40×1013 Bq/l). We first describe the principle of bipolar electrolysis and its application to isotopic enrichment. The experimental part of this work consists of the determination of the isotopic separation factors. From these experimental values, we simulated the working of an operational cell and we demonstrate the feasibility of the process.

日本語訳

重水素化処理施設は、トリチウムを回収できない低放射能濃度のトリチウム水を生成する。Pd–Ag合金膜を通る水素およびその同位体の電気化学的透過に基づくバイポーラ電解は、無視できるほどのガス状トリチウム放出とともに、トリチウム水の濃縮を可能にする。我々の目的は、水を500 Ci/l(1.85×10¹³ Bq/l)から2000 Ci/l(7.40×10¹³ Bq/l)超に濃縮することである。まず、バイポーラ電解の原理とその同位体濃縮への応用について述べる。本研究の実験部分は、同位体分離係数の決定で構成される。これらの実験値から、実用セルの動作をシミュレーションし、本プロセスの実現可能性を実証する。

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TritiumTritiated waterTritium recovery
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