Journal
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
Volume 43, Issue 7, Pages 562-568Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/03601230802234385
Keywords
Acid Blue 9; herbicides; kinetic model; advanced oxidation process; H(2)O(2)
Funding
- University of Tabriz, Iran
Ask authors/readers for more resources
The present work deals with photooxidative removal of the herbicide, Acid Blue 9 (AB9), in water in the presence of hydrogen peroxide (H(2)O(2)) under UV light illumination (30 W). The influence of the basic operational parameters such as amount of H(2)O(2), irradiation time and initial concentration of AB9 on the photodegradation efficiency of the herbicide was investigated. The degradation rate of AB9 was not appreciably high when the photolysis was carried out in the absence of H(2)O(2) and it was negligible in the absence of UV light. The photooxidative removal of the herbicide was found to follow pseudo-first-order kinetic, and hence the figure-of-merit electrical energy per order (EEo) was considered appropriate for estimating the electrical energy efficiency. A mathematical relation between the apparent reaction rate constant and H(2)O(2) used was applied for prediction of the electricity consumption in the photooxidative removal of AB9. The results indicated that this kinetic model, based on the initial rates of degradation, provided good prediction of the EEo values for a variety of conditions. The results also indicated that the UV/H(2)O(2) process was appropriate as the effective treatment method for removal of AB9 from the contaminated wastewater.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available