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《Environmental Chemistry》 2012-05
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Granular activated carbon(GAC) reuse in the degradation of Acid Orange 7 by GAC catalyzed peroxymonosulfate oxidation

YANG Shiying1,2 SHAO Xueting2 HAN Qiang2 WANG Ping3 WANG Jing2 (1.Key Laboratory of Marine Environment and Ecology,Ministry of Education,Qingdao,266100,China; 2.College of Environmental Science and Engineering,Ocean University of China,Qingdao,266100,China; 3.College of Foreign Language,Qingdao Agriculture University,Qingdao,266109,China)  
In this paper,the reuse of granular activated carbon(GAC) in the GAC and peroxymomosulfate(PMS) combined system to degrade azo dye Acid Orange 7(AO7) was studied.It was discovered that GAC could be reused.After four cycles,the GAC catalytic capability was reduced by only 4.6%.The catalytic capability increased as the dosage of PMS increased.During the process of AO7 degradation,GAC surface was oxidized by PMS and the catalytic ability of GAC was enhanced.It was found that only the catalytic ability was regenerated,but the sorption capability was not.Even when GAC lost most of its sorption ability,its catalytic ability remained at the same level as before.After 10 days continuous operation,GAC had no obvious deactivation.This system would be significant for practical applications.
【Fund】: 国家自然科学基金(21107101)资助
【CateGory Index】: X703
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Chinese Journal Full-text Database 1 Hits
1 WANG Jing1,2,YANG Shi-ying1,2,CHEN You-yuan1,2,ZHANG Jun2,FENG Lin-yu2,ZHAO La-juan2(1.Key Laboratory of Marine Environment & Ecology,Ministry of Education;2.College of Environmental Science and Engineering,Ocean University of China,Qingdao 266100,China);Degradation of The Dissolved Organic Matter in Secondary Effluent By GAC/H_2O_2/UV[J];Environmental Science & Technology;2013-S1
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