Treatment of Radioactive Waste Regenerant of Ion Exchange Resin by Preferential Flotation Method

Koyanaka, Yoshio

doi:10.1080/18811248.1969.9732957

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1972

1987

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“…Of the ferrocyanides, the copper complex has been the most extensively investigated [29 -31 ]. It proved successful for the coflotation of cesium with a number of collectors [1,2,[4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Coflotation of ¹³⁴Cs from Radioactive Process Waste Water

et al. 1987

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Cesium, coprecipitated with copper ferrocyanide, can be readily removed from radioactive process waste water using sodium lauryl sulphate (NaLS), cetyl trimethyl ammonium bromide (CTAB) or gelatin (Gl) as collector. In addition to the effect of the collector type on the percentage removal and volume reduction, the effects of the pH of three distinct Cu 2 + : Fe(CN)J ~ ratios and of different ageing periods of the cesium-copper ferrocyanide-water systems have been established. With NaLS, CTAB and Gl successful removals could be achieved in the pH ranges 3-7.5, 5.0-10.5 and 5.5-9.0 respectively. The results are discussed in terms of the ionization of the active groups of the collectors and of the electrical state of the precipitate.

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Section: Introductionmentioning

confidence: 99%