Premium
Online monitoring of Fenton‐mediated reactive red 6 B oxidation kinetics
Author(s) -
Xu Hang,
Yu Tianlong,
Wang Jianxu,
Li Mei,
Liu Yana
Publication year - 2015
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12093
Subject(s) - hydrogen peroxide , ferrous , kinetics , chemistry , aqueous solution , radical , fenton reaction , hydroxyl radical , oxidation process , advanced oxidation process , chemical engineering , catalysis , organic chemistry , physics , quantum mechanics , engineering
Online spectrophotometric technology was used to monitor the Fenton oxidation of the model dye Reactive Red 6B (RR6B) in an aqueous solution. The results showed that online monitoring technology was well equipped to record detailed information during the Fenton process. RR6B was successfully decomposed by Fenton oxidation and it was determined that optimal experimental conditions yielded nearly 100% dye removal to be 3.5 × 10 −5 M ferrous ion, 2.5 × 10 −3 M hydrogen peroxide and 3.85 pH. Both first‐order and Behnajady–Modirshahla–Ghanbery kinetics models described the Fenton process well with correlation coefficients above 0.99. The instant concentration of hydroxyl radicals and the reaction rate at different conditions were also calculated based on the above two models. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1019–1027, 2015