Removal of iopromide from an aqueous solution using dielectric barrier discharge

2012 ◽  
Vol 88 (3) ◽  
pp. 468-473 ◽  
Author(s):  
Yanan Liu ◽  
Yu Sun ◽  
Jinlong Hu ◽  
Jun He ◽  
Shufang Mei ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dielectric Barrier

Degradation of Reactive Black 5 in Aqueous Solution by Double-Dielectric Barrier Discharge

2012 ◽  
Vol 610-613 ◽  
pp. 1616-1619
Author(s):  
Shu Fang Mei ◽  
Ya Nan Liu
Keyword(s):  
Aqueous Solution ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Degradation Mechanism ◽  
Degradation Process ◽  
Reactive Black 5 ◽  
Dielectric Barrier ◽  
Treated Sample ◽  
Conductivity Increase ◽  
Decolorization Efficiency

Degradation of Reactive Black 5 in aqueous solution was studied by double-dielectric barrier discharge, degradation efficiency and degradation mechanism has been investigated. Results shows that during in ten minutes degradation, decolorization efficiency can reach 98.76%,COD and TOC could not be reduce observably, while the biodegradability has been greatly improved, the BOD5/COD ratio increase from 0.079 to 0.495.Decolorization efficiency is higher than that of mineralization, decolorization follows the first order kinetics with a constant rate of 0.4008 min-1. pH of the solution decrease gradually, but the conductivity increase during the degradation process. The ions of sulfate, nitrate, acetic acid, and oxalic acid have been found in the final treated sample and their concentrations increase with the reaction time. Chromophore group is damaged firstly and the solution has been decolorized efficiently, the degradation of benzene ring and naphthalene ring is more difficult than that of the azo bond, and the reduction or disappearance of absorption peaks indicates that the aromatic ring of KN-B was degraded partly.

scholarly journals Degradation ofm-cresol in aqueous solution by dielectric barrier discharge

2012 ◽  
Vol 406 ◽  
pp. 012025
Author(s):  
B Jaramillo-Sierra ◽  
A Mercado-Cabrera ◽  
R López-Callejas ◽  
R Peña-Eguiluz ◽  
S R Barocio ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Dielectric Barrier Discharge ◽  
Barrier Discharge ◽  
Dielectric Barrier
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