Effect of Water Content in Gas on Adsorption of Vapor PCDD/Fs by Activated Alumina
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概要
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Effect of water content in gas on adsorption of vapor PCDD/Fs by activated alumina was studied. The adsorption rate of vapor PCDD/Fs by activated alumina rapidly decreased at water contents of 25 %v/v and 33 %v/v, and the decrease was remarkable in lower chlorinated PCDD/F congeners. The adsorption rate was also positively correlated with the retention time of PCDD/F isomers on polar column (SP-2331) in GC-MS. These results suggest that an adsorption of vapor PCDD/Fs by activated alumina is affected by competition between dioxins and water on polar sites of alumina. In case of using activated alumina as adsorbent of PCDD/Fs in exhaust gas from incinerator, cooling method by mixing with air was thought to be effective, because gas cooling method by mixing with water will cause increase of water content in gas, and results in higher loss of PCDD/Fs.
- 日本環境化学会の論文
日本環境化学会 | 論文
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