Kinetics of acetaminophen degradation by Fenton oxidation in a fluidized-bed reactor

doi:10.1016/j.chemosphere.2012.09.003

Chia Nan University of Pharmacy & Science Institutional Repository > 環境永續暨休閒學院 > 環境資源管理系(所) > 期刊論文 > Item 310902800/27878

請使用永久網址來引用或連結此文件: https://ir.cnu.edu.tw/handle/310902800/27878

標題:	Kinetics of acetaminophen degradation by Fenton oxidation in a fluidized-bed reactor
作者:	de Luna, Mark Daniel G. Briones, Rowena M. Su, Chia-Chi Lu, Ming-Chun
貢獻者:	環境資源管理系
關鍵字:	Acetaminophen Fluidized-Bed Fenton Kinetics Intermediates
日期:	2013-01
上傳時間:	2014-05-26 10:47:20 (UTC+8)
出版者:	Pergamon-Elsevier Science Ltd
摘要:	Acetaminophen (ACT), an analgesic and antipyretic substance, is one of the most commonly detected pharmaceutical compound in surface waters and wastewaters. In this study, fluidized-bed Fenton (FB-Fenton) was used to decompose ACT into its final degradation products. The 1.45-L cylindrical glass reactor had inlet, outlet and recirculating sections. SiO2 carrier particles were supported by glass beads with 2-4 mm in diameter. ACT concentration was determined by high performance liquid chromatography (HPLC). During the first 40 min of reaction, a fast initial ACT removal was observed and the "two-stage" ACT degradation conformed to a pseudo reaction kinetics. The effects of ferrous ion dosage and [Fe2+]/ [H2O2] (FH ratio) were integrated into the derived pseudo second-order kinetic model. A reaction pathway was proposed based on the intermediates detected through SPME/GC-MS. The aromatic intermediates identified were hydroquinone, benzaldehydes and benzoic acids while the non-aromatic substances include alcohols, ketones, aldehydes and carboxylic acids. Rapid initial ACT degradation rate can be accomplished by high initial ferrous ion concentration and/or low FH ratio. (C) 2012 Elsevier Ltd. All rights reserved.
關聯:	Chemosphere, v.90 n.4, pp.1444-1448
顯示於類別:	[環境資源管理系(所)] 期刊論文

文件中的檔案:

檔案	描述	大小	格式	瀏覽次數
index.html		0Kb	HTML	1722	檢視/開啟

在CNU IR中所有的資料項目都受到原著作權保護.

TAIR相關文章

資料載入中.....