Laboratory of Environmental Engineering, Department of Process Engineering, Faculty of Engineering, Badji Mokhtar – Annaba University, P.O. Box 12, 23000 Annaba, Algeria
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Publications Show all
Energetic challenges and sonochemistry: A new alternative for hydrogen production?
Published in Current Opinion in Green and Sustainable Chemistry
The present article constitutes an objective review and a constructive analysis of the main bibliographic results regarding the production of hydrogen using ultrasound. In spite of clear trends showing the efficiency of sonolysis for H2 production, as compared to conventional techniques, reported by several authors, many debates are still opened re...
Rapid catalytic degradation of refractory textile dyes in Fe(II)/chlorine system at near neutral pH: Radical mechanism i...
Published in Separation and Purification Technology
Owing to the marked stability and resistance to biodegradation of synthetic dyes, their removal from industrial wastewater is a very difficult process. Herein, we investigated the feasibility of Fe(II)/chlorine system to remove synthetic dyes from water. It was found that the presence of chlorine in solution containing 25 µM of Fe(II) at pH 5 accel...
Sonolytic ozonation for water treatment: efficiency, recent developments, and challenges
Published in Current Opinion in Green and Sustainable Chemistry
In recent years, ozonation combined with ultrasound (US/O3 process) has been actively researched as a promising method of advanced oxidation processes. Comparing with ozonation or ultrasound alone, it appears to be more effective and uses less energy, and it has the advantages of being nonselective, leading to no secondary pollution, and being part...
Depth effect on the inertial collapse of cavitation bubble under ultrasound: Special emphasis on the role of the wave at...
Published in Ultrasonics Sonochemistry
Acoustic cavitation concentrates and releases a very large amount of energy in localized areas, which can be used for many physical and chemical processes. Even though acoustic cavitation has been studied widely for decades in lab-scale sonoreactors, only few studies have been devoted to characterize this event in big-scale sonoreactors, where the ...
Insights into numerical simulation of controlled ultrasonic waveforms driving single cavitation bubble activity
Published in Ultrasonics Sonochemistry
A computational study treating cavitation phenomenon within a single bubble undergoing various controlled ultrasonic waveforms is presented in this paper. Numerical simulations using sinusoidal, square, triangular and sawtooth waves crossing an aqueous media, saturated with oxygen, are conducted upon various operational conditions of frequency and ...
