Ministry of Education, Research and Youth

Gheorghe Asachi Technical University of Iasi

Faculty of Chemical Engineering and Environmental Protection

PN-II-RU-TE-2014-4-0405, Nr. 274/1.10.2015

Development and optimization of an innovative photo-Fenton-peroxone system for degrading organic micropollutants in water

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2017

 

The activities of 2017 stage have been accomplished as described below:

 

1. Synthesis, characterization and testing of Fenton aerogels (Related activities were conducted in 2016 and 2017 stages)

1.1 Surface deposition of Fe nano-oxides on carbon and doped aerogels through wet impregnation and PLD.

1.2 Physical-chemical properties investigation of unloaded aerogel and Fenton graphene-aerogel, catalyst composite.

1.3 Evaluation of the MP removal and optimization of the amount of graphene oxide, Titania-doped graphene and Fe nano-oxides deposited on the aerogel matrices surface to enhance the process efficiency

1.4 Preparation of the promising aerogels in the amounts needed for further investigations

 

2. Screening and economical optimization of photo-Fenton-peroxone process for MPs removal in batch, at lab scale

2.1. Study on the significance of process parameters and interactions between them by means of screening design (DOE) of batch photo-Fenton-peroxone system for MPs degradation.

2.2 Mathematical modeling and optimization by RSM.

 

3. Screening and economical optimization of the continuous photo-Fenton-peroxone system for MPs removal, at micro-pilot scale:

3.1 Design and achievement of a continuous photo-Fenton-peroxone system at micro-pilot scale with in-situ generation of O3 and H2O2.

3.2 Study of the effects of main parameters of the photo-Fenton-peroxone system on its performance.

3.3 Study on the significance of process parameters and their interactions of the coupling system at semi-pilot scale by means of design of experiments

3.4 Mathematical modeling and economical optimization of the coupling system by RSM for AC and aerogel composites

3.5 Comparative analysis of the investigated Fenton catalysts in terms of efficiency and operating costs

 

List of papers presented  at international conferences:

 

1. A. Vajda, M.S. Secula, B. Cagnon, I. Mamaliga, Iron(II)-embedded composites based on activated carbon used as fenton-like catalysts, The 10th International Conference on Materials Science & Engineering – BraMat 2017, Brașov, 8-11 March, 2017.

2. M.S. Secula, A. Vajda, L. Hagiu-Zaleschi, B. Cagnon, F. Warmont, I. Mamaliga, Iron(II)-Impregnated Activated Carbon Composites Applied as Fenton-like Catalysts for Degrading Persistent Organic Compounds, 15th International Conference on Environmental Science And Technology, 29 August – 2 September, Rodos, 2017 (Proceedings of the International Conference on Environmental Science and Technology ISSN 1106-5516 ISBN 978-960-7475-53-4).

3. M.S. Secula, M. Darie, G. Carja, Photo-Fenton degradation of organic compounds by Iron(II)-embedded AC composites. Effects of operating parameters, The 9th International Conference on Environmental Engineering and Management (ICEEM09), Bologna, 6 – 9 September 2017.

 

Patent request submitted to OSIM, Romania:

C.S. Stan, M.S. Secula, Preparation method of polymer cryogels based on 2-hydroxyethyl methacrylate and graphene oxide, A/00036, 19th January 2017.

 

Papers submitted for publication:

1. M.S. Secula, A. Vajda, B. Cagnon, I. Mamaliga, Photodegradation of organic compounds by Iron(II)-embedded composites based on activated carbon, The Canadian Journal of Chemical Engineering.

2. M.S. Secula, L. Hagiu-Zaleschi, B. Cagnon, C.S. Stan, I. Mamaliga, Magnetic activated carbon composites used as Fenton like catalyst for degrading 4-Chlorophenol and Ibuprofen, Desalination and Water Treatment.

3. M.S. Secula, A. Vajda, B. Cagnon, I. Mamaliga, Fractional Factorial Design Study on the Performance of GAC-based Photo-Fenton-Peroxone Process, Journal of Advanced Oxidation Technologies.

 

Paper published in BDI indexed journal:

A. Vajda, M.S. Secula, L. Hagiu-Zaleschi, G. Carja, I. Mamaliga, Magnetic activated carbon composites used as fenton like catalysts for photodegrading organic compounds in aqueous solutions, Buletinul Institutului Politehnic din iaºi, 63(1) 2017, 59-65.

 

 

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18.10.2017