Fe-Rich Aragonite Concretion Applied to Industrial Dye Purification Using Fenton and Photo-Fenton Technologies
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ORIGINAL PAPER
Fe‑Rich Aragonite Concretion Applied to Industrial Dye Purification Using Fenton and Photo‑Fenton Technologies Mabrouk Eloussaief1 · Wiem Hamza1 · Ghaniya Ghorbali1 · Nejib Kallel2 · Mourad Benzina1 Received: 12 June 2020 / Accepted: 3 September 2020 © Springer Nature B.V. 2020
Abstract For a low cost and efficient oxidation process of industrial textile dye, this investigation described an economic process for the Indigo Carmine (IC) dye degradation from aqueous solution. Our study used a novel natural carbonated concretion catalyst, aragonite, which was collected from the thermal station waste located in El Hamma, Southwestern Tunisia, as an advanced oxidation process. This new studied ferrous sample Fe-rich aragonite (Fe–Ar) was characterized using various techniques, such as X-ray diffraction (XRD), Specific Surface Area (BET) and Infrared Spectroscopy (FTIR). The textural, structural and chemical characterizations confirmed the presence of Aragonite phases with a high amount of iron (almost 30%) on the surface material. The new catalyst activity was evaluated in the oxidation of IC dye in an aqueous solution by Fenton and photo-Fenton process. The test results show that the Fe-rich aragonite exhibited higher photocatalytic oxidation activity at pH 3. In addition, the IC dye could effectively be removed from the aqueous solution by photo-Fenton process in the existence of the used material as catalyst. Based on this work, the importance of this material in the purification of industrial effluents loaded with dyes is confirmed proving that this material can replace a very expensive commercial catalyst materials used in fenton and photo-Fenton technologies.
* Mabrouk Eloussaief [email protected] 1
Laboratoire de Recherche « Eau, Energie et Environnement », LR99ES35, Ecole Nationale d’Ingénieurs de Sfax, Université de Sfax, BP W, 3038 Sfax, Tunisie
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Laboratoire Géoressources, Matériaux, Environnements et Changements Globaux, LR13ES23, Faculté des Sciences de Sfax, Université de Sfax, BP1171, 3000 Sfax, Tunisie
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Waste and Biomass Valorization
Graphic Abstract
Keywords Carbonated concretion · Aragonite · Valorization · Dyes · Purification · Fenton · Photo-Fenton
Statement of Novelty The present work could be viewed as a pioneer investigation aiming to value the carbonated concretions as a natural low-cost material (Fe-aragonite rich) for the degradation of a reactive dye as indigo carmine (IC) from an aqueous solution applying the Fenton and photo-Fenton processes.
Introduction Organic dyes are commonly produced by textile, printing and paper manufacturing ending up in waste waters and are therefore a potential source of rivers and waterways pollution [1–3]. To solve this problem, researchers proceed with several depollution methods such as chemical, physical and biological treatments as well as adsorption [4–7]. Therefore, different advanced oxidation processes (AOPs) such as Fenton and Foto-Fenton process have been
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developed over the past de
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