Author, as appears in the article.: Boucenna, N; Mokhtari-Belkhadem, F; Bouteiba, A; Sahel, K; Medina, F; Lounis, M
Department: Enginyeria Química
URV's Author/s: Medina Cabello, Francisco
Keywords: Water Removal Oxidation Layered double hydroxides Degradation n-methyldiethanolamine Catalytic ozonation Acid
Abstract: The aim of this study was to evaluate the efficiency of catalytic ozonation to increase the degradation of aqueous N-methyldiethanolamine (MDEA) solutions, using two lamellar double hydroxides, namely MgxFe-LDH with x = Mg/Fe = 2, 3, were synthesized by the simple and rapid co-precipitation method. Then, the obtained materials were calcined at 400 degrees C for 6 h. The calcined products were respectively designated as HTcMg2Fe and HTcMg3Fe, and characterized by powder X-ray diffraction (XRD), N-2 physisorption (BET), Fourier transform infrared spectra (FT-IR), and scanning electron microscopy (SEM). The powders produced were used in the ozonation reaction to remove MDEA from aqueous solutions. Experimental results showed that the highest MDEA removal efficiency is in the catalytic ozonation process. Under the optimal conditions for heterogeneous catalytic ozonation of MDEA: initial concentration of 4 Wt% MDEA, 30 degrees C, catalyst mass of 30 mg/100 ml solution, and contact time of 60 min. The results showed the highest percentage of COD removal, which was up to 80.76% for HTcMg2Fe higher than that of HTcMg3Fe 80.36%.
Thematic Areas: Zootecnia / recursos pesqueiros Water science and technology Water resources Saúde coletiva Química Planejamento urbano e regional / demografia Odontología Medicina veterinaria Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Geografía Geociências General medicine Farmacia Environmental sciences Environmental engineering Engineering, environmental Engineering, civil Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Economia Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Biotecnología Biodiversidade Administração pública e de empresas, ciências contábeis e turismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: francesc.medina@urv.cat
Author identifier: 0000-0002-3111-1542
Record's date: 2024-08-03
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Water Science And Technology. 87 (8): 1803-1818
APA: Boucenna, N; Mokhtari-Belkhadem, F; Bouteiba, A; Sahel, K; Medina, F; Lounis, M (2023). Catalytic ozonation of N-methyldiethanolamine over mixed oxides derived from Mg/Fe-LDH. Water Science And Technology, 87(8), 1803-1818. DOI: 10.2166/wst.2023.102
Entity: Universitat Rovira i Virgili
Journal publication year: 2023
Publication Type: Journal Publications
Repositori URV