1995
DOI: 10.1021/ie00046a007
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Oxidation of Sulfur Dioxide in Aqueous Suspensions of Activated Carbon

Abstract: Sulfur dioxide in aqueous solutions a t low pH levels exists both in molecular SOz(aq) and in hydrolyzed ionic form HSOa-. Experiments indicate that only HS03is the reacting species in the oxidation catalyzed by activated carbon, while SOz(aq) deactivates by competing with HS03for the active sites of the catalyst particles. A mechanism is proposed and a rate model is developed that also accounts for the effect of sulfuric acid (product of the oxidation) on the solubility of sulfur dioxide. It predicts first or… Show more

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Cited by 15 publications
(10 citation statements)
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“…Komiyama and Smith (10) as well as Govindarao and Gopalakrishna (11) among others specifically studied SO2 oxidation in activated carbon slurries (freshwater). Komiyama and Smith (10) used a small-sized carbon (dp)0.03 mm), to avoid diffusional limitations.…”
Section: Introductionmentioning
confidence: 99%
“…Komiyama and Smith (10) as well as Govindarao and Gopalakrishna (11) among others specifically studied SO2 oxidation in activated carbon slurries (freshwater). Komiyama and Smith (10) used a small-sized carbon (dp)0.03 mm), to avoid diffusional limitations.…”
Section: Introductionmentioning
confidence: 99%
“…UV treatment of a landfill leachate resulted in significant TOC and COD removals and increased biodegradability. Govindarao and Gopalakrishna (1995) oxidized sulfur dioxide in water with activated carbon. Bisulfite was shown to be the reactive species.…”
Section: Miscellaneousmentioning
confidence: 99%
“…1. In reality, there are multiple intermediate reactions that take place on the catalyst surface before acid is produced (see, for example, [11,12]), but the overall reaction is given by…”
Section: Introductionmentioning
confidence: 99%