Scientific Articles

28.11.11 Recovering boric acid from nuclear power plant's liquid waste

Monday, 28 November 2011 06:03

LIU Jingjing, ZHANG Weijiang, XU Jiao

(School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)

Abstract: With the progress of modern science and technology, the demand for enriched 10B is becoming greater. Particularly, nuclear power reactors require large amounts of enriched boron-10 acid. However, currently the use of enriched boron-10 acid in China depends on import, thus limiting the development of advance materials in China. In this paper, the role of boric acid in the nuclear power plant and the important significance of recovering boric acid from nuclear waste are introduced. This article studies the principles on liquid-liquid extraction, ion exchange, membrane separation and evaporation as well as their respective advantages and disadvantages in the process of boric acid, recovery boric acid, and the recycling process of boric acid. Several feasibility programs and their applications were also elaborated.

Key words: boric acid; nuclear power p ants; liquid waste; recovery

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