期刊論文

標題 Decolorization and degradation of 2,4-dinitrophenol by fenton's reagent
學年 87
學期 1
出版(發表)日期 1999/01/01
作品名稱 Decolorization and degradation of 2,4-dinitrophenol by fenton's reagent
作品名稱(其他語言)
著者 康世芳; Kang, Shyh-fang; Wang, Teh-hsiu; Lin, Yen-han
單位 淡江大學水資源及環境工程學系
出版者 Taylor & Francis
著錄名稱、卷期、頁數 Journal of Environmental Science and Health, Part A: Toxic/Hazardous Substances and Environmental Engineering 34(4), pp.935-950
摘要 The Fenton's reagent was applied to decolor and degrade 2,4‐dinitrophenol (DNP). Different concentrations of ferrous ion (Fe2+) and hydrogen peroxide (H2O2) were dosed to investigate their influences on the removal of DNP. The ADMI color value was adopted as an index to indicate the decoloring performance of the reaction. Low molecular weight of organic acids was monitored, and the role of dissolved oxygen during the DNP degradation was discussed. Results show that due to productions of colored intermediates and the oxalic acid, DNP was quickly removed, followed by the ADMI color value and DOC, respectively. Both initial removal rates of DNP and ADMI color value increased linearly at low dosages of Fe2+ and H2O2. A high dosage of Fe2+ (> 1mM) led to an insignificant response of the initial removal rate of DNP, whereas the initial removal rate of ADMI color value was not affected and kept increasing constantly. Because of the non‐selective feature of the hydroxyl radical, leveling off in the initial removal rates of DNP and ADMI color value was observed when dosing with a high concentration of H2O2. The variation in dissolved oxygen associated with a change in color led to a proposed pathway to depict the oxidation of DNP in a Fenton's reaction.
關鍵字 2,4‐Dinitrophenol;Fenton's reagent;degradation;decolorization;intermediates;dissolved oxygen
語言 英文
ISSN 1093-4529
期刊性質 國內
收錄於
產學合作
通訊作者
審稿制度
國別 中華民國
公開徵稿
出版型式 ,電子版