Project Code: PN-III-P3-3.1-PM-RO-FR-2019-0165

Contract no. 18 BM / 26.06.2019

 

Efficient removal of antibiotic pollutants in water by non-thermal plasma

coupled with other advanced oxidation processes (AQUA-PLAS)

 

ABSTRACT:

The project scope is to develop an efficient method for the degradation of pharmaceutical pollutants in water, based on non-thermal plasma coupled with other advanced oxidation processes, such as ozonation and heterogeneous catalysis. The studies will be focused on antibiotics belonging to various classes, since these compounds are hardly biodegradable and difficult to destroy by conventional techniques, and thus represent a serious concern with respect to water contamination. Electrical discharges generated in gas phase in contact with liquid will be used (corona – Romania, DBD - France), since encouraging results have already been obtained by the research teams involved in the project. The ozone produced in plasma will be efficiently re-used by bubbling it through the solution to be treated (plasma-ozonation configuration). The integration of suitable catalysts in plasma (plasma-catalytic configuration) may also promote the elimination of the investigated pollutants. Validating these water treatment techniques at laboratory scale and assessment of the efficiency, both from an energetic viewpoint and with respect to the mineralization of the target antibiotics (complete degradation to CO2 and H2O) represent the main goals of the project. The project will combine experimental research and numerical simulations in order to obtain an in-depth understanding of the degradation of organic pollutants in plasma. The complementarity of the research teams represents an advantage for achieving the project objectives.

 

PROJECT OBJECTIVE:

The project objective is to develop an efficient method for the degradation of pharmaceutical pollutants in water (especially antibiotics), based on non-thermal plasma coupled with other advanced oxidation processes, such as ozonation and heterogeneous catalysis. The project intends to validate these water treatment techniques at laboratory scale and to assess their efficiency, both from an energetic viewpoint and with respect to the mineralization of the target antibiotics (complete degradation to CO2 and H2O). By combining experimental research and numerical simulations, in-depth understanding of the degradation of organic pollutants by plasma is desired.

 

ESTIMATED RESULTS:

- Efficient elimination of the target pharmaceutical pollutants (antibiotics) together with high mineralization.

- Understanding of the degradation mechanisms of organic pollutants in plasma combined with ozonation or catalysis, by chemical analysis of the treated water.

- In-depth understanding of the degradation of organic pollutants in plasma, by combining experimental research with molecular dynamics simulations.

- Concept of an integrated system including the three processes: plasma, ozonation and heterogeneous catalysis.

- Benefit to the young researchers involved in the project by collaboration with experienced researchers with complementary competences.

- The possibility of continuing the collaboration in the framework of other projects (eg European projects) on this topic, as well as the identification of new topics of mutual interest.

 

RESULTS

Scientific Report 2019

Articles: in preparation

Conference communications:

- D. Hong, Y. Baloul, N. Korichi, M. Magureanu, H. Rabat, C. Colas, B. Maunit, O. Aubry, “Degradation of Paracetamol in Water by a DBD Created Non-thermal Plasma”, PhotonIcs & Electromagnetics Research Symposium (PIERS 2019)

- H. Rabat, N. Korichi, O. Aubry, D. Hong, “Degradation of Pharmaceutical Molecules in Aqueous Solution by Dielectric Barrier Discharges”, PhotonIcs & Electromagnetics Research Symposium (PIERS 2019)

Seminars:

- Dr. Corina Bradu: “Chimie de l’eau a Bucarest” – seminar in GREMI, Orléans

- Dr. Monica Magureanu: “Degradation of organic pollutants in water by non-thermal plasma” – web seminar broadcasted by Réseaux des Plasmas Froids (http://plasmasfroids.cnrs.fr/spip.php?article365)

- Dr. Hevé Rabat: “From an overview of the research at the GREMI laboratory to a focus on the different researches in the Arc Team”, seminar in NILPRP, Bucharest

- Dr. Olivier Aubry “Pharmaceutical molecules degradation in water by non-thermal plasma and heterogeneous catalysis coupling”, seminar in NILPRP, Bucharest