Tinidazole Removal from Aqueous Solution by Sonolysis in the Presence of Hydrogen Peroxide

Aqueous solutions of the tinidazole (TNZ) have been treated by applying the combination of ultrasound irradiation and H₂O₂. Based on the results, the maximum removal efficiency of 75 % was achieved under the optimum operating conditions (pH 3, 120 kHz frequency, 333 mM/L of H₂O₂ and 150 min of opera...

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Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2014-03, Vol.92 (3), p.341-346
Main Authors: Rahmani, H, Gholami, M, Mahvi, A. H, Alimohammadi, M, Azarian, G, Esrafili, A, Rahmani, K, Farzadkia, M
Format: Article
Language:English
Subjects:
Antibiotics
Applied sciences
Aquatic Pollution
Aqueous solutions
Chemical oxygen demand
Chromatography
Earth and Environmental Science
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Exact sciences and technology
General purification processes
Hydrogen peroxide
Hydrogen Peroxide - chemistry
Hydrogen-Ion Concentration
Irradiation
Optimization
Oxygen demand
Pollution
Soil Science & Conservation
tinidazole
Tinidazole - analysis
Tinidazole - chemistry
Toxicology
Ultrasonics
Ultrasound
Waste Disposal, Fluid - methods
Waste water
Waste Water - chemistry
Waste Water Technology
wastewater
Wastewaters
Water Management
Water Pollutants, Chemical - analysis
Water Pollutants, Chemical - chemistry
Water Pollution Control
Water treatment
Water treatment and pollution
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Summary:Aqueous solutions of the tinidazole (TNZ) have been treated by applying the combination of ultrasound irradiation and H₂O₂. Based on the results, the maximum removal efficiency of 75 % was achieved under the optimum operating conditions (pH 3, 120 kHz frequency, 333 mM/L of H₂O₂ and 150 min of operating time) while, under the same conditions the minimum removal efficiency was found to be 8.5 by ultrasound radiation in the absence of H₂O₂. The results also revealed that the degradation of TNZ was enhanced with decreasing both TNZ initial concentrations and pH. Furthermore, TNZ removal efficiency in the case of actual wastewater was less than of synthetic wastewater (75 % and 68 % of synthetic and actual, respectively). According to the chromatographic analyses, no harmful intermediate compounds were observed. The chemical oxygen demand analysis (65 % reduction) confirmed our findings.
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-013-1193-2