Journal
RESEARCH ON CHEMICAL INTERMEDIATES
Volume 35, Issue 1, Pages 21-34Publisher
SPRINGER
DOI: 10.1007/s11164-008-0012-6
Keywords
Bisphenol A; Deionized water; Hydroxyl radical reaction; Tertiary treated wastewaters
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Funding
- WateReuse Foundation [WRF 04-017]
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The oxidative reactions of bisphenol A (BPA) with radiolytically generated hydroxyl radicals were studied in both deionized water and tertiary treated wastewaters. In deionized water, bisphenol A reacts with the hydroxyl radical by addition to the aromatic ring, k = 6.9 x 10(9) (+/- 0.2) M-1 s(-1), to eventually form the prominent, long-lived, hydroxylated intermediate product. In contrast, in tertiary treated water solutions, although the initial hydroxyl radical addition reaction occurs, the hydroxylation is averted, and a different mechanistic pathway ensues. The removal constant for the hydroxyl radical reaction with BPA is 0.45 +/- 0.04 mu mol/kGy, corresponding to an overall degradation efficiency of 76%.
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