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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemical engineering
Sonolytic degradation of endocrine disrupting chemical 4-cumylphenol in water
Ultrasonics Sonochemistry, Volume 18, No. 5, Year 2011
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Description
The sonolytic degradation of endocrine disrupting compound 4-cumylphenol (4-CyP) in aqueous solution was investigated. The influence of operating parameters for sonication process such as 4-CyP initial concentration, frequency, power, pH, temperature and saturating gas was examined. The extent of degradation was inversely proportional to the initial substrate concentration. The rate of 4-CyP degradation was frequency dependent. The degradation rate increased proportionally with increasing ultrasonic power from 20 to 100 W and temperature in the range of 20-50°C. The most favorable degradation pH was acidic media. Destruction in the presence of saturating gas follows the order: argon > air > nitrogen. The 4-CyP degradation was inhibited in the presence of nitrogen gas owing to the free radical scavenging effect in vapor phase within the bubbles of cavitation. The ultrasonic degradation of 4-CyP was clearly promoted in the presence of bromide anions and the promoting effect on degradation increased with increasing bromide concentration. At low 4-CyP concentration (0.05 mg L-1), bicarbonate ion drastically enhanced the rate of 4-CyP degradation. Experiments conducted using pure and natural water demonstrated that the sonolytic treatment was more efficient in the natural water compared to pure water. © 2010 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Chiha, Mahdi
Algeria, Annaba
Université Badji Mokhtar - Annaba
Hamdaoui, Oualid
Algeria, Annaba
Université Badji Mokhtar - Annaba
Baup, Stéphane
France, Saint Martin D'heres
Laboratoire D'electrochimie et de Physico-chimie Des Materiaux et Des Interfaces
Gondrexon, Nicolas
France, Saint Martin D'heres
Laboratoire D'electrochimie et de Physico-chimie Des Materiaux et Des Interfaces
Statistics
Citations: 92
Authors: 4
Affiliations: 2
Identifiers
Doi:
10.1016/j.ultsonch.2010.12.014
ISSN:
13504177
e-ISSN:
18732828
Research Areas
Environmental