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Professor Abdeltif AMRANE Exceptional class, UMR 6226 ISCR, University of Rennes 1 |
He has been involved in research projects as a manager or a participant in several projects, as well in international collaborations (Algeria, Belgium, Hungary, Lebanon, Mexico, Morocco, Poland, Romania, Spain, Tunisia). He has published close to 330 international papers including 15 papers in press. He has also published 12 chapter books and has about 110 international and 20 national oral communications. |
"Coupling of electrochemical processes and a biological treatment for the removal of recalcitrant organic compounds"
Abstract
The large accumulation of emerging pollutants in continental and marine natural waters is the consequence in part, of industrial development on a large-scale. Partly responsible for this pollution, low volumes containing high concentrations of persistent organic pollutants can result in large polluted volumes very weakly concentrated which are difficult to treat. One solution would be to treat the considered pollution on site, as intended in this project. Among the destructive processes available to treat recalcitrant compounds, and especially emerging pollutants, such as pharmaceuticals coming from industrial effluents (concentrations and COD higher than 1 and 10 g L-1 respectively in some pharmaceutical effluents),1 combined processes have been widely studied,2-3 including several studies performed by the ISCR teams,4-6 owing to their high efficiency to eliminate biorecalcitrant compounds and to their lower cost compared to physico-chemical mineralization. Different electrochemical processes were tested as pre-treatment to demonstrate at a lab-scale level the feasibility of these coupled processes for the removal of pharmaceuticals pollutants. The objective is to improve the biodegradability of the effluent, avoiding its complete mineralization which is not economically viable. On the one hand, a subsequent biological treatment, involving for instance a wastewater treatment plant can be considered to complete effluent mineralization. To demonstrate the feasibility and the interest of the combined process, some recalcitrant compounds, antibiotics and pesticides, were considered.
Arwa Abou Dalle, Imen Saidi, Florence Fourade, Hayet Djelal,
Aymen Amin Assadi, Nizar Bellakhal, Florence Geneste, Abdeltif Amrane 1. Institut des Sciences Chimiques de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, UMR-CNRS 6226, France 2. Institut des Sciences Chimiques de Rennes, Université de Rennes 1, UMR-CNRS 6226, France 3. Laboratoire de Biotechnologies Appliquées, Centre AZM pour la recherche en biotechnologies et ses applications, Université Libanaise, Tripoli, Liban. 4. Unité de recherche de Catalyse d'Electrochimie de Nanomatériaux et leurs applications et de didactique CENAD, Institut National des Sciences Appliquées et de Technologie (INSAT),Tunis, Tunisia 5. Ecole des Métiers de l'Environnement, Campus de Ker Lann, Bruz, France
References
- D. Mansour, F. Fourcade, D. Hauchard, N. Bellakhal, A. Amrane, Relevance of a combined process coupling electro-Fenton and biological treatment for the remediation of sulfamethazine solutions - Application to an industrial pharmaceutical effluent, C. R. Chim. 18, 39-44 (2014).
- J.P. Scott, D.F. Ollis, Integration of chemical and biological processes for water treatment: review and recommendations, Environ. Prog. 14, 88-103 (1995).
- I. Oller, S. Malato, J.A. Sánchez-Pérez, Combination of Advanced Oxidation Processes and biological treatments for wastewater decontamination - A review, Sci. Total Environ. 409, 4141-4166 (2011).
- J.M. Fontmorin, S. Huguet, F. Fourcade, F. Geneste, D. Floner, A. Amrane, Electrochemical oxidation Of 2,4-D: analysis of by-products and Improvement of the biodegradability, Chem. Eng. J. 195-196, 208-217 (2012).
- J.M. Fontmorin, F. Fourcade, F. Geneste, D. Floner, S. Huguet, A. Amrane, Coupling of an electrochemical process with a biological treatment for the removal of 2,4-Dichlorophenoxyacetic acid, Biochem. Eng. J. 70, 17-22 (2013).
- D. Mansour, F. Fourcade, N. Bellakhal, M. Dachraoui, D. Hauchard, A. Amrane, Biodegradability improvement of sulfamethazine solutions by means of an electro-Fenton process, Water Air Soil Poll. 223, 2023-2034 (2012).
Key-words: Electro-Fenton process; Indirect electroreduction; Graphite felt electrode; Modified electrodes; Combined process; Biological treatment
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Professor Sahar I. Mostafa, B.Sc,M. Sc., Ph.D, Mansoura University, Egypt |
Inorganic Chemistry professor Mansoura University, Egypt; Visiting Prof. McGill, Canada; Ioannina Univ, Greece. She was awarded B Sc (Excellent honor) and M Sc (Mansoura Univ) and Ph D (Imperial College, UK) and Academic Visitor Imperial College, IKY Fellow, JICA fellow. She has written chapters, invited for 35 lectures worldwide, 80 publications, member in editorial boards in 10 scientific journals, and advisor (40 MSc , PhD theses). She developed several aspects of O,O; N,O and N,S donors complexes with low cytotoxicity with research interest is on transition metal complexes biologically active (anticancer, antiosteoporosis), catalysis and environmental for removal of heavy metal ions by adsorption onto Modified Solid Supports (MSS). Her academic efforts have been recognized by Mansoura Univ PLATES (2013, 2017, 2018; best Teaching-1992), JICA (2000), Imperial College (1993, 2008), Who's is Who's in the world (2008), Al-Azhar Univ (2007, 2009, 2011), Africa Pharmacology (South Africa 2016). |
"Adsorption of Heavy Metal Ions from Aqueous Media onto Chemically Modified Bio-sorbents and Bio-composite"
Abstract
Providing clean and affordable water to meet human needs is one of the great challenges of the 21st century. Egypt has reached a state where the quantity of water available is imposing limits on its national economic development. Water quality is adding additional stress with 4.5 million tons of untreated or partially treated industrial pollutants estimated to enter the water supply annually. There has been an increasing focus on the application of sustainable biomaterials as an alternative to chemical-based wastewater treatment; i.e., reducing environmental impact, and provide safe water in the developing world. Modified biomaterials have great potential in water purification. Chemically modified chitosan and cellulose, and cellulose-green algae composite have been prepared and their structures were characterized by various spectroscopic, morphological, thermal measurements, which indicate either modification or composite formation. Adsorption is considered to be a potential cost-effective method for the removal of heavy metal ions from aqueous media and by incorporating modified supports, the adsorption of Cd(II) and Cr(VI) ions was greatly enhanced when compared to adsorption with their free forms. The optimum experimental parameters for this process are discussed in this study, including the initial pH, amount of sorbent, contact time and metal ions concentration. The adsorption kinetics and isotherms were discussed. The desorption processes illustrate the regeneration ability of the sorbents without any significant loss of its initial properties throughout three adsorption-desorption cycles. Compared to commercially expensive sorbents, the non-toxic, biodegradable chitosan, cellulose and algae materials could prove to be an attractive, alternative material for the removal of heavy metal ions from wastewater. The amount of Cd(II) ions adsorbed onto sorbent was determined from both the intensity of Raman-active vibration and atomic absorption spectroscopy. The nature of adsorption of Cd(II) and Cr(VI) ions onto the studied sorbents have been investigated.
Keywords Adsorption, Waste water, NMR, Raman
References
- Mostafa S. I. (2018), Removal of Copper(II) Ions from Aqueous Media by Chemically Modified MCM-41 with N-(3-(Trimethoxysilyl)propyl)ethylene diamine and Its 4-Hydroxysalicylidene Schiff-Base, Enviro. Progr., 37: 746-760
- Mostafa S. I. (2011), Preparation, characterization and pH-metric measurements of 4-hydroxysalicylidenechitosan Schiff-base complexes of Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Ru(III), Rh(III), Pd(II) and Au(III), Carbohy. Reseach., 346, 775-793 [3]
- Mostafa S. I. (2018), 2-Hydroxynaphthaldehyde chitosan schiff-base; new complexes, biosorbent to remove cadmium(II) ions from aqueous media and aquatic ecotoxicity against green alga Pseudokirchneriella subcapitata J. Envir. Chem. Eng., 6, 3451-3468 [4]
- Mostafa S. I. (2019), Efficient Adsorption of Cd(ІІ) Ions from Aqueous Media onto Semi-Inter Penetrating Bio-composite Enviro. Progr., 37 in press
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Professor Abdelkrim BOUZAZA Maitre de conférence Ecole Nationale Supérieure de chimie de Reines |
Procédés d’adsorption : Traitement des Composés Organiques Volatils (COVs), Phénomènes de compétition, Traitement des Produits Organiques Persistants (POPs) Procédés de Photocatalyse : Réacteurs continus et discontinus, Cinétique et transfert de masse, Traitement de COVs et produits odorants, Combinaison Photocatalyse/Adsorption Plasma : Réacteurs continus, Changement d’échelle, Cinétique et transfert de masse, mécanismes réactionnels, Traitement de COVs et produits odorants, Combinaison Photocatalyse/Plasma Production scientifique jusqu’en décembre 2018 65 articles dans des revues scientifiques à comité de lecture, 2 brevets, 50 conférences avec proceedings, Liste des publications les plus significatives des dernières années 1. A. Bouzaza, C. Vallet, A. Laplanche “Photocatalytic degradation of some VOCs in the gas-phase using an annular flow reactor. Determination of the contribution of mass transfer and chemical reaction steps in the photodegradation process” Journal of photochemistry and photobiology A: Chemistry 177 (2006), 212-217 2. Petit N., Bouzaza A., Wolbert D., Petit P., Dussaud J. “Photocatalytic degradation of gaseous perchloroethylene in continuous flow reactors: Rate enhancement by chlorine radicals”. Catalysis Today’s, 124 (2007), 266-272 3. Pierre-François Biard, Abdelkrim Bouzaza and Dominique Wolbert “Photocatalytic degradation of two volatile fatty acids in monocomponent and multicomponent systems: Comparison between batch and annular photoreactors” Applied Catalysis B: Environmental, 74 (2007), 187-196 4. Pierre-François Biard, Abdelkrim Bouzaza and Dominique Wolbert « Photocatalytic degradation of two volatile fatty acids in an annular plug-flow reactor; kinetic modeling and contribution of mass transfer rate ». Environ. Sci. Technol., 41 (2007), 2908-2914 5. S. Brosillon, L. Lhomme, C. Vallet, A. Bouzaza, D. Wolbert « Gas phase photocatalysis and liquid phase photocatalysis: Interdependence and influence of substrate concentration and photon flow on degradation reaction kinetics ». Applied Catalysis B: Environmental, 78 (2008), 232-241 6. B. Boulinguiez, A. Bouzaza, S. Merabet, D. Wolbert «Photocatalytic degradation of ammonia and butyric acid in plug-flow reactor: Degradation kinetic modeling with contribution of mass transfer». J. of Photochem. And Photobiol. A: Chemistry 200 (2008), 254-261 7. S. Merabet, A. Bouzaza, D. Wolbert “Photocatalytic degradation of indole in a circulating upflow reactor by UV/TiO2 process-Influence of some operating parameters”. Journal of Hazardous Materials 166(2009), 1244-1249 8. A. Assadi, A. Bouzaza, D. Wolbert “Photocatalytic oxidation of Trimethylamine and Isovaleraldehyde in an annular reactor: Influence of the Mass Transfer and the relative humidity”, J. of Photochem. and Photobiol. A: Chemistry 236 (2012), 61-69 9. A. Assadi, J. Palau, A. Bouzaza, D. Wolbert “Modeling of a continuous photocatalytic reactor for Isovaleraldehyde oxidation: Effect of different operating parameters and chemical degradation pathway.” J. of Chemical Engineering Research and Design, Vol.91, Issue 7 (2013), 1307-1316 10. A. Assadi, A. Bouzaza, C Vallet, D. Wolbert “Use of DBD plasma, photocatalysis and combined DBD plasma/photocatalysis in a continuous annular reactor for isovaleraldehyde elimination – Synergetic effect and byproducts identification” Chemical Engineering Journal, Vol 254 (2014), 124-132 11. M. Guillerm, A. Assadi, A. Bouzaza, D. Wolbert “Removal of gas-phase ammonia and hydrogen sulfide using photocatalysis, nonthermal plasma, and combined plasma and photocatalysis at pilot scale” Environmental Science and Pollution Research,Volume 21, Issue 22 (2014), 13127-13137 12. A. Assadi, A. Bouzaza, S. Merabet, D. Wolbert “Modeling and simulation of VOCs removal by nonthermal plasma discharge with photocatalysis in a continuous reactor: Synergetic effect and mass transfer Chemical Engineering Journal, Vol 258 (2014), 119-127 13. A. Assadi, A. Bouzaza, M. Lemasle, D. Wolbert “Removal of trimethylamine and isovaleric acid from gas streams in a continuous flow surface discharge plasma reactor”, Chemical Engineering Research and Design, Vol 93 (2015), 640-651 14. M. Berkani, M. Bouhelassa, A. Bouzaza, M.K. Bouchareb, Y. Kadmi, I. Soutrelle “Optimization of photocatalytic decolourization of cationic azo dye in thin film fixed bed photoreactor” Chemical Engineering Transactions, (2015) vol.43, 961-966 15. A. Assadi, A. Bouzaza , M. Lemasle , D. Wolbert Acceleration of trimethylamine removal process under synergistic effect of photocatalytic oxidation and surface discharge plasma reactor, The Canadian Journal of Chemical Engineering 93 (2015) 1239–1246 16. L. Mouni , L. Belkhiri, A. Bouzaza, J-C Bollinger Chemical associations and sorption capacity of Pb and Zn: Column experiments on a polluted soil from the Amizour mining district (Algeria) Environ Earth Sci (2016) 75-96 (DOI: 10.1007/s12665-015-4854-0) 17. S. Merabet, A. Assadi, A. Bouzaza , D. Wolbert Photocatalytic degradation of indole–4-methylphenol mixture in an aqueous solution: optimization and statistical analysis Desalination and Water Treatment, 57 (2016) 17039-17050. 18. Assadi A.A., Bouzaza A., Wolbert D. Comparative study between laboratory and large pilot scales for VOC's removal from gas streams in continuous flow surface discharge plasma Chemical Engineering Research and Design, (2016), Vol.106, 308-314 19. A. Ounnar, L. Favier, A. Bouzaza, M. Trari, F. Bentahar "Kinetic study of spiramycin removal from aqueous solution by heterogeneous photocatalysis" Kinetics and Catalysis (2016), Vol.57, N°2, 200-206 20. A. Ounnar, A. Bouzaza, L. Favier, F. Bentahar “Macrolide antibiotics removal using a circulating TiO2-coated paper photoreactor: parametric study and hydrodynamic flow characterization” Water Science and Technology (2016), Vol.73.11, 2627-2637 DOI 10.2166/wst.2016.096 21. S. Gharib-Abou Ghaida, A.A. Assadi, G. Costa G., A. Bouzaza, D. Wolbert “Association of surface dielectric barrier discharge and photocatalysis in continuous reactor at pilot scale: butyraldehyde oxidation, by-products identification and ozone valorization” Chemical Engineering Journal (2016), Vol.292, 276-283 22. N. Bouchelkia, L. Mouni, L. Belkhiri, A. Bouzaza, J-C Bollinger, K. Madani, F. Dahmoun “Removal of lead(II) from water using activated carbon developed from Jujube stones: A low-cost sorbent” Separation Science and Technology (2016), DOI 10.1080/01496395.2016.1178289 23. G. Costa, A.A. Assadi, S. Gharib-Abou Ghaida, A. Bouzaza, D. Wolbert “Study of butyraldehyde degradation and by-products formation by using a surface plasma discharge in pilot scale: Process modeling and simulation of relative humidity effect” Chemical Engineering Journal 307 (2017), 785-792 DOI.org/10.1016/j.cej.2016.07.099 24. Assadi I., Assadi A. A., Elfalleh W., Bouzaza A., Ferchichi A., Wolbert D. “Combined system of natural pomegranate as heterogeneous bioadsorbent and photocatalysis for removal of textile dye herbicide in presence of heavy metals: effect of operating parameters and reaction monitoring” Desalination and Water Treatment 1 (2017) 1–7 doi: 10.5004/dwt.2017.20388 26. W. Elfallah, A. A. Assadi, A. Bouzaza, D. Wolbert, J. Kiwi, S. Rtimi, “Innovative and stable TiO2 supported catalytic surfaces removing aldehydes under UV light” Journal of Photochemistry and Photobiology A: Chemistry (2017)-doi.org/10.1016/j.jphotochem.2017.04.029 27. W. Abou Saoud, A.A. Assadi, M. Guiza, A. Bouzaza, W. Aboussaoud, A. Ouederni, I. Soutrel, D. Wolbert, S. Rtimi “Study of synergetic effect, catalytic poisoning and regeneration using dielectric barrier discharge and photocatalysis in a continuous reactor: Abatement of pollutants in air mixture system” Applied Catalysis B: Environmental (2017)-doi.org/10.1016/j.apcatb.2017.05.012 28. W. Abou Saoud, A. Assadi, M. Guiza, A. Bouzaza, W. Aboussaoud, I. Soutrel, A. Ouederni, D. Wolbert, S. Rtimi “Abatement of ammonia and butyraldehyde under non-thermal plasma and photocatalysis: Oxidation processes for the removal of mixture pollutants at pilot scale”, Chemical Engineering Journal 344 (2018), 165-172 29. T. Zadi, A. Assadi, N. Nasrallah, R. Bouallouche, P. N. Tri, A. Bouzaza, M. Azizi, R. Maachi, D. Wolbert “Treatment of hospital indoor air by a hybrid system of combined plasma with photocatalysis: case of trichloromethane”, Chemical Engineering Journal 349 (2018), 276-286 30. A. Assadi, S. Loganathan, N. Tri Phuong, S. Garib, A. Bouzaza, N Tuan Anh, D. Wolbert “Pilot scale degradation of mono and multi volatile organic compounds by surface discharge plasma/TiO2 reactor: investigation of competition and synergism”, Journal of Hazardous Materials, 357 (2018), 305-313 31. W. Abou Saoud, A. Assadi, M. Guiza, S. Loganathan, A. Bouzaza, W. Aboussaoud, A. Ouederni, S. Rtimi, D. Wolbert “Synergism between non-thermal plasma and photocatalysis: Implications in the post discharge of ozone at a pilot scale in a catalytic fixed-bed reactor”, Applied Catalysis B: Environmental 241 (2019), 227-235 Brevets - Petit P., Vialle P.-J., Maciuca A., Batiot-Dupeyrat C., Tatibouet J.-M., Assadi A., Bouzaza A., Wolbert D., Vallet C. (01/02/2013) Dispositif, système et procédé de traitement de gaz. France Patent, N°1350906.
- Petit P., Vialle P.-J., Maciuca A., Batiot-Dupeyrat C., Tatibouet J.-M., Assadi A., Bouzaza A., Wolbert D. (15/05/2013) Dispositif de traitement de gaz et sa méthode d'assemblage, système et procédé de traitement de gaz. France Patent, N°1354353 |
"Association of ddb-plasma/fixed-bed catalyst reactor for voc oxidation: Process optimization, Ozone valorization, Catalyst regeneration
Traitement de Covs par procédé combiné plasma-dbd/photocatalyse : Optimisation des procédés, Valorisation de l’Ozone, Régénération catalytique"
La pollution de l’air par des composés organiques volatils tels que les aldéhydes, cétones, acides gras et autres aromatiques constitue un problème majeur de qualité de l’air. Ces polluants peuvent causer des dommages à l’environnement et à la santé humaine. Par conséquent des procédés de traitement efficaces et peu onéreux s’avèrent indispensables pour résoudre ce problème. Parmi les procédés prometteurs le plasma et la photocatalyse et leur combinaison peuvent apporter une solution à ce problème.
La présentation s’articulera autour de trois points principaux :
1- Présentation de quelques résultats de dégradation de COVs (butyraldéhyde, DMDS, NH3) par plasma DBD, photocatalyse et procédé combiné plasma/photocatalyse. La combinaison des procédés améliore grandement les performances de traitement en raison notamment d’un effet de synergie. Cet effet de synergie entraine un rendement supérieur à l’élimination (plus de 10% comparé à la somme des deux procédés) et une réduction de la formation des sous-produits. L’identification des sous-produits et les mécanismes chimiques de dégradation seront présentés.
2- L’ozone est un sous-produit dû au plasma et la présence d’oxygène dans l’air. L’utilisation d’un lit catalytique en post-traitement permet de réduire le rejet d’ozone et également de profiter de ses propriétés oxydantes. Les catalyseurs de type Alumine, Mordenite ou ZSM-5 ont permis d’améliorer le taux de dégradation en butyraldéhyde et de réduire considérablement la quantité d’ozone formé.
3- Les composés soufrés sont connus pour poser des problèmes d’empoisonnement des catalyseurs en raison de la déposition du soufre sur les sites actifs. L’utilisation du plasma permet de prolonger la durée de vie du photocatalyseur et de garder les performances de traitement pendant une durée beaucoup plus longue.
References:
1- A. Assadi, S. Loganathan, N. Tri Phuong, S. Garib, A. Bouzaza, N Tuan Anh, D. Wolbert
“Pilot scale degradation of mono and multi volatile organic compounds by surface discharge plasma/TiO2 reactor: investigation of competition and synergism”, Journal of Hazardous Materials, 357 (2018), 305-313
2- W. Abou Saoud, A. Assadi, M. Guiza, S. Loganathan, A. Bouzaza, W. Aboussaoud, A. Ouederni, S. Rtimi, D. Wolbert
“Synergism between non-thermal plasma and photocatalysis: Implications in the post discharge of ozone at a pilot scale in a catalytic fixed-bed reactor”. Applied Catalysis B: Environmental (2019) 241, 227-235.
3- W. Abou Saoud, A.A. Assadi, M. Guiza, A. Bouzaza, W. Aboussaoud, A. Ouederni, I. Soutrel, D. Wolbert, S. Rtimi
“Study of synergetic effect, catalytic poisoning and regeneration using dielectric barrier discharge and photocatalysis in a continuous reactor: Abatement of pollutants in air mixture system” Applied Catalysis B: Environmental 213 (2017), 53-61
Abdelkrim BOUZAZA, Aymen Amine ASSADI, Dominique WOLBERT
Laboratoire Sciences Chimiques de Rennes - équipe Chimie et Ingénierie des Procédés, UMR 6226 CNRS, ENSCR-11, allée de Beaulieu, CS 508307-35708 Rennes, France.