scholarly journals Degradation of azo dye Acid black 1 using low concentration iron of Fenton process facilitated by ultrasonic irradiation

2007 ◽  
Vol 14 (6) ◽  
pp. 761-766 ◽  
Author(s):  
Jian-Hui Sun ◽  
Sheng-Peng Sun ◽  
Jing-Yu Sun ◽  
Rui-Xia Sun ◽  
Li-Ping Qiao ◽  
...  
Keyword(s):  
Ultrasonic Irradiation ◽  
Azo Dye ◽  
Fenton Process ◽  
Low Concentration ◽  
Degradation Of Azo Dye

Degradation of azo dye by the fluidised-bed Fenton process

2011 ◽  
Vol 128 (1) ◽  
pp. 28-35 ◽  
Author(s):  
Massakul Pukdee-Asa ◽  
Chia-Chi Su ◽  
Chavalit Ratanatamskul ◽  
Ming-Chun Lu
Keyword(s):  
Azo Dye ◽  
Fluidised Bed ◽  
Fenton Process ◽  
Degradation Of Azo Dye

Investigation of the solution initial pH effects on the performance of UV/Fe-ZSM5/H2O2 process

2010 ◽  
Vol 61 (8) ◽  
pp. 2143-2149 ◽  
Author(s):  
M. B. Kasiri ◽  
A. Aleboyeh ◽  
H. Aleboyeh
Keyword(s):  
Hydrogen Peroxide ◽  
Azo Dye ◽  
Dye Degradation ◽  
Ion Concentration ◽  
Ph Effects ◽  
Fenton Process ◽  
Zsm5 Zeolite ◽  
Initial Ph ◽  
Fe Ions ◽  
Degradation Of Azo Dye

Effect of the solution initial pH was investigated on the performance of photo-Fenton process using Fe-ZSM5 zeolite as a heterogeneous catalyst for degradation of azo dye Acid Red 14. All experiments were performed in a 1.0 L tubular closed circulation batch photo-reactor. The dye degradation quantum yield was maximal when the solution initial pH was about 5. An amount of about 0.3 mg L−1 of Fe ions leached out of the zeolite. However, monitoring Fe ion concentration during the experiments showed that the efficiency of the process is not due to the leached Fe ions. The effect of pH on decomposition rate of hydrogen peroxide in different systems such as H2O2 alone, UV/H2O2, UV/Zeolite and UV/Zeolite/H2O2 was explored in detail to explain the results obtained.

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