Abstract
In view of their toxicity, the presence of endocrine disrupters such as phthalates in surface waters requires the setup of new wastewater treatment processes. Previous studies demonstrated the efficiency of ozone carbon (AC) coupling in removing micropollutants such as phthalates in batch conditions. The aim of the present work was to study the removal of diethylphthalate (DEP) from water by coupling in continuous flow on a pilot scale. Comparison of the results obtained with coupling (both DEP removal and ozone mass transfer) to those of conventional methods shows its great potential and the influence of experimental conditions such as pH and ozone gas concentration. The process reached a steady state with a high pollutant removal and an efficient ozone mass transfer. Moreover, it extends the AC lifetime by ensuring the in situ renewal of the adsorbent. By estimating the microporous volume occupied by the adsorbent material at different times during the treatment, it is also shown that no significant modification in the AC textural and chemical properties occurs during its regeneration by oxidative species.
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Acknowledgments
The authors wish to thank Xavier Bourrain and the Agence de l’Eau Loire Bretagne for their technical and financial support and Pica Jacobi for graciously supplying AC.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 141 • Issue 5 • May 2015
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Mar 4, 2014
Accepted: Oct 16, 2014
Published online: Nov 21, 2014
Discussion open until: Apr 21, 2015
Published in print: May 1, 2015
ASCE Technical Topics:
- Business management
- Carbon fibers
- Chemical compounds
- Chemical elements
- Chemical treatment
- Chemicals
- Chemistry
- Cooling (wastewater treatment)
- Coupling
- Engineering materials (by type)
- Engineering mechanics
- Environmental engineering
- Fibers
- Health hazards
- Mass transfer
- Material mechanics
- Material properties
- Materials engineering
- Materials processing
- Ozone
- Practice and Profession
- Public administration
- Public health and safety
- Structural engineering
- Structural members
- Structural systems
- Thermodynamics
- Transport phenomena
- Waste management
- Waste treatment
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