教師資料查詢 | 類別: 期刊論文 | 教師: 陳俊成 LUKE CHEN (瀏覽個人網頁)

標題:Oxidative Decomposition of Reactive Blue C.I. 19 with Sodium Hypochlorite
學年98
學期1
出版(發表)日期2010/01/01
作品名稱Oxidative Decomposition of Reactive Blue C.I. 19 with Sodium Hypochlorite
作品名稱(其他語言)
著者Ho, Chih-Hsuan; Chen, Luke; Ho, Yen-Peng; Yang, Chen-Lu
單位淡江大學水資源及環境工程學系
出版者New Rochelle: Mary Ann Liebert, Inc. Publishers
著錄名稱、卷期、頁數Environmental Engineering Science 27(1), pp.103-109
摘要AbstractReaction kinetics of Reactive Blue C.I. 19 (RB 19) dye and sodium hypochlorite (NaOCl) were investigated. Decline of RB 19 was monitored continuously by an ultraviolet (UV)-Vis spectrophotometer to avoid sampling errors. The purpose of this study is to develop a kinetic model for reactor and process design to establish hypochlorite oxidation as a viable alternative to advanced oxidation processes for textile effluent decolorization. Results were in agreement with 0.5-order reaction kinetics with respect to the RB 19 concentration. The lumped rate constant of the pseudo-0.5-order reaction is proportional to the NaOCl concentration. The Arrhenius activation energy obtained from the slope of the best-fit line is 76.6?kJ/mol, with a corresponding preexponential factor of 1.388?×?1010. The reaction rate is strongly affected by the pH of the solution. During the oxidation decomposition process, color was rapidly removed by the NaOCl but chemical oxygen demand (COD) resisted the treatment. A molar ratio of more than 44 is essential for OCl-to completely decompose the dye molecules thus removing COD from the solution. A system of liquid chromatography mass spectrometry (LC/MS) was used to determine the intermediates in the initial steps of the decomposition process.
關鍵字Reactive Blue 19; anthraquinone dyes; decomposition; reaction kinetics; decolorization; COD
reduction
語言英文
ISSN1092-8758; 1557-9018
期刊性質國外
收錄於SCI
產學合作
通訊作者Yang, Chen-Lu
審稿制度
國別美國
公開徵稿
出版型式紙本
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