Simulation for radiolytic products of seawater: effects of seawater constituents, dilution rate, and dose rate. Issue 8 (2nd August 2016)

• Record Type: Journal Article
• Authors: Hata, Kuniki; Satoh, Tomonori; Motooka, Takafumi; Ueno, Fumiyoshi; Hanawa, Satoshi; Kasahara, Shigeki; Tsukada, Takashi
• Is Part Of: Journal of nuclear science and technology. Volume 53:Issue 8(2016)
• Page Start: 1183
• Page End: 1191
• Publication Date: 2016-08-02
• Subjects: radiation chemistry -- hydrogen production -- calculation -- irradiation; Nuclear engineering -- Periodicals; Nuclear physics -- Periodicals; Nuclear energy -- Periodicals; 621.4805
• DOI: 10.1080/00223131.2015.1096218
• Languages: English
• ISSNs: 0022-3131

Abstract

Abstract : Radiolysis calculations of simulated seawater were conducted using reported data on chemical yields and chemical reaction sets to predict the effects of seawater constituents on water radiolysis. Hydrogen, oxygen, and hydrogen peroxide were continuously produced from simulated seawater during γ-ray irradiation. The concentration of H2 exceeded its saturation concentration before it reached the steady-state concentration. The production behavior of these molecules was significantly promoted by the addition of bromide ions (Br − ) because of the high reactivity of Br − with the hydroxyl radical, an effective hydrogen scavenger. It is also shown that the concentrations of these molecules were effectively suppressed by diluting seawater constituents by less than 1%.