Water treatment plant sludge as iron source to catalyze a heterogeneous photo-Fenton reaction

Grassi, Patrícia; Drumm, Fernanda Caroline; Georgin, Jordana; Franco, Dison S.P.; Foletto, Edson Luiz; Dotto, Guilherme Luiz; Jahn, Sérgío Luiz

doi:10.1016/j.eti.2019.100544

Cited by 47 publications

(14 citation statements)

References 30 publications

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“…In the most recently published articles in the portfolio, it was possible to verify that researchers have been investigating new materials that can be combined with catalysts of recognized quality in the photocatalytic treatment of compounds and wastes in order to enhance the process (De Andrade et al., 2020; Grassi et al., 2020; Singh & Garg., 2020).…”

Section: Resultsmentioning

confidence: 99%

Heterogeneous alternative catalysts: A bibliometric and systematic evaluation of their application in solar photocatalytic processes

Cahino

Rocha

Vidal

et al. 2022

Environmental Quality Mgmt

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The present study sought to objectively demonstrate how a researcher can, in a structured way, select relevant articles about alternative heterogeneous catalysts in photocatalytic processes. Therefore, the ProKnow-C (Knowledge Development Process -Constructivist) method was used to systematize the results found, with the application bibliometric and systematic analysis techniques for the evaluation of the results. The search string adopted as criteria was: solar photocatalysis AND heterogeneous catalysts OR alternative catalysts AND effluents. The databases were Web of Science, Science Direct and Scopus. The final bibliographic portfolio obtained for the research theme was made up of 19 articles. It was possible to verify advances in the number of publications on the theme over the evaluated period, with the Journal of Photochemistry and Photobiology A: Chemistry standing out in the final portfolio.Evaluating each article in the portfolio individually, it was possible to verify that most studies use combinations of catalysts already reported to create an alternative material to those already investigated in the literature. Those that use waste as catalysts chose to source this material from treatment plants and the steel industry. Around 58% of the papers used hydrogen peroxide in their processes, while 42% chose not to use it.Finally, approximately 63% of the papers in the portfolio used synthetic effluent in their processes, while the rest (37% of the research) chose to use real effluent. The results obtained in this research by applying the method can contribute to studies related to heterogeneous photocatalysis by alternative means over the years.

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Section: Resultsmentioning

confidence: 99%

Heterogeneous alternative catalysts: A bibliometric and systematic evaluation of their application in solar photocatalytic processes

Cahino

Rocha

Vidal

et al. 2022

Environmental Quality Mgmt

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“…The XRD pattern for the hematite matches the hexagonal phase of Fe 2 O 3 (PANICSD: 98-002-2505) with the R-3C space group. The lattice [39] In previous studies, it has been observed that the materials used as catalysts showed a hematite percentage between 5% and 15%. [40,41] Thus, the quantity of Fe 2 O 3 is high enough to use the basalt as a catalyst in this study.…”

Section: Characterization Of Basalt Powdermentioning

confidence: 99%

Investigation of Basalt Properties as Heterogeneous Catalyst for Fenton Oxidation of Textile Wastewater

Saleh

Yalvaç

Arslan

et al. 2021

CLEAN Soil Air Water

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In this study, basalt is used as a catalyst for the removal of the dyes malachite green (MG) and crystal violet (CV) from aqueous solution. First, the effect of sintering temperature on Fenton process is optimized using basalt powder. Different analysis techniques such as X-ray diffraction (XRD), X-ray fluorescence (XRF), Brunauer-Emmett-Teller (BET), and Fourier-Transform Infrared Spectroscopy (FTIR) are used to characterize basalt powder. It is concluded that Fe 2 O 3 in basalt powder is the main component responsible for the degradation of dyes in the Fenton process. The maximum degradation of the dyes (97.02% for CV and 95.71% for MG) is obtained at 10 mg L −1 dye concentration, solution pH of 6, 1 g L −1 catalyst amount, and 12 mm H 2 O 2 concentration for 2 h. The results are fitted to the second-order kinetic model. The reusability of the catalyst is explored, and the basalt showed stability in the removal efficiency for repeated five cycles. The degradation of real textile wastewater is also studied. The removal efficiency reached up to 60.33% at optimum conditions of pH 2, basalt amount of 5 g L −1 , H 2 O 2 concentration of 400 mm. The results showed that the basalt powder is successfully utilized as a heterogeneous catalyst for textile wastewater treatment.

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“…Such radicals have the ability to oxidize nearly all organic molecules to non-toxic end products, carbon dioxide and water (Tony and Lin 2020b). Lately, in the last several decades, previous researchers (Chu 2001;Exley 2004;Grassi et al 2020;Laib et al 2021;Nguyen et al 2021;Yang et al 2021) proved the use of an aluminum-based Fenton reaction is a good candidate to substitute the classical Fenton's reaction catalyst to overcome the disadvantages of the Fenton reaction. Aluminum, Al, is well known as one of the most common metals in the earth's crust capable of forming a wide range of powerful complexes.…”

Section: Introductionmentioning

confidence: 99%

Identifying optimized conditions for developing dewatered alum sludge-based photocatalyst to immobilize a wide range of dye contamination

et al. 2022

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In the current investigation, the removal of Levafix Fast Red CA (LFR) and Levafix Amber CA (LA) azo-dyes from aqueous media using the Fenton/adsorption processes has been carried out. The water treatment by-product, namely alum sludge (AS), was successfully collected and calcined to various temperatures, i.e., 400, 600 and 800 °C, then tested for use as a catalyst in the Fenton/adsorption processes. Fourier transform infrared (FT-IR) transmittance spectrum analysis and Transmission electron microscopy techniques (TEM) were applied to investigate the structural and morphological properties of such a catalyst. The results displayed that the calcined AS at 400 °C (AS400) showed the best photocatalytic activity under ultraviolet illumination and sunlight irradiation. The results indicated that the adsorption/Fenton’s oxidation systems are efficient for treatment and eliminating such types of reactive dyes. The oxidation reaction using Fenton’s reagent reached 99.9 and 86% removal for LFR and LA dyes, respectively. The operating conditions revealed that the reaction was maximized at the operational parameters of 1 g/L and 800 mg/L for AS400 and H2O2 at acidic pH (3.0). The process of single dyes was studied either from thermodynamic and kinetic viewpoints and the data exhibited that the reaction is followed a pseudo-second- order kinetic model and an exothermic reaction nature. The practical application of such byproduct waste used as a photocatalyst source through using natural solar radiation introduces an industrial ecology approach in treating dye effluents for safer environment.

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Water treatment plant sludge as iron source to catalyze a heterogeneous photo-Fenton reaction

Cited by 47 publications

References 30 publications

Heterogeneous alternative catalysts: A bibliometric and systematic evaluation of their application in solar photocatalytic processes

Heterogeneous alternative catalysts: A bibliometric and systematic evaluation of their application in solar photocatalytic processes

Investigation of Basalt Properties as Heterogeneous Catalyst for Fenton Oxidation of Textile Wastewater

Identifying optimized conditions for developing dewatered alum sludge-based photocatalyst to immobilize a wide range of dye contamination

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