Nano zero-valent iron on activated carbon cloth support as Fenton-like catalyst for efficient color and COD removal from melanoidin wastewater

Raji, Mahdieh; Mirbagheri, Seyed Ahmad; Ye, Fei; Dutta, Joydeep

doi:10.1016/j.chemosphere.2020.127945

Cited by 93 publications

(26 citation statements)

References 44 publications

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“…On the other hand, advanced oxidation processes such as Fenton were successfully utilized to remove E3, BPA, diethylstilbestrol (DES), E2, and EE2 with removal efficiencies of 84.9%, 99.5%, 99.1%, 97.8%, and 84.5%, respectively as reported by Sun et al [153]. The photo-Fenton process also showed a removal efficiency for pharmaceutical compounds, many types of hormones, phenolic, pesticide, and PPCP compounds, ranging from 95% to 100% [154][155][156]. Nevertheless, the limitation of these processes was determined by the infeasible regeneration of iron ions and the final treatment of effluent to meet the discharge standards for iron concentrations.…”

Section: Removal Of Edcs From Watermentioning

confidence: 79%

Endocrine-Disrupting Compounds: An Overview on Their Occurrence in the Aquatic Environment and Human Exposure

Pironti

Ricciardi

Proto

et al. 2021

Water

144

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Endocrine-disrupting compounds (EDCs) as emerging contaminants have accumulated in the aquatic environment at concentration levels that have been determined to be significant to humans and animals. Several compounds belong to this family, from natural substances (hormones such as estrone, 17β-estradiol, and estriol) to synthetic chemicals, especially pesticides, pharmaceuticals, and plastic-derived compounds (phthalates, bisphenol A). In this review, we discuss recent works regarding EDC occurrence in the aquatic compartment, strengths and limitations of current analytical methods used for their detection, treatment technologies for their removal from water, and the health issues that they can trigger in humans. Nowadays, many EDCs have been identified in significant amounts in different water matrices including drinking water, thus increasing the possibility of entering the food chain. Several studies correlate human exposure to high concentrations of EDCs with serious effects such as infertility, thyroid dysfunction, early puberty, endometriosis, diabetes, and obesity. Although our intention is not to explain all disorders related to EDCs exposure, this review aims to guide future research towards a deeper knowledge of EDCs’ contamination and accumulation in water, highlighting their toxicity and exposure risks to humans.

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Section: Removal Of Edcs From Watermentioning

confidence: 79%

Endocrine-Disrupting Compounds: An Overview on Their Occurrence in the Aquatic Environment and Human Exposure

Pironti

Ricciardi

Proto

et al. 2021

Water

144

View full text Add to dashboard Cite

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“…Efforts have been made to facilitate the recovery of carbon material from water by structurally upgrading carbon to membranes, fibers, aerogels, and sponges [160][161][162]. ACs have been widely used as catalyst support [163][164][165], but, as explained above, some carbon materials offer more than their textural contribution. There have been no new specific studies on the photoactivity of ACs over the past five years.…”

Section: Recent Results Related To Photocatalysis and Catalyzed Ozonation For Water Treatment Using Similar Catalysts To Those Studied Inmentioning

confidence: 99%

Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes

et al. 2020

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The objective of this study was to summarize the results obtained in a wide research project carried out for more than 15 years on the catalytic activity of different catalysts (activated carbon, metal–carbon xerogels/aerogels, iron-doped silica xerogels, ruthenium metal complexes, reduced graphene oxide-metal oxide composites, and zeolites) in the photooxidation (by using UV or solar radiation) and ozonation of water pollutants, including herbicides, naphthalenesulfonic acids, sodium para-chlorobenzoate, nitroimidazoles, tetracyclines, parabens, sulfamethazine, sodium diatrizoate, cytarabine, and surfactants. All catalysts were synthesized and then texturally, chemically, and electronically characterized using numerous experimental techniques, including N2 and CO2 adsorption, mercury porosimetry, thermogravimetric analysis, X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, diffuse reflectance UV–vis spectroscopy, photoluminescence analysis, and transmission electron microscopy. The behavior of these materials as photocatalysts and ozonation catalysts was related to their characteristics, and the catalytic mechanisms in these advanced oxidation processes were explored. Investigations were conducted into the effects on pollutant degradation, total organic carbon reduction, and water toxicity of operational variables and the presence of different chemical species in ultrapure, surface, ground, and wastewaters. Finally, a review is provided of the most recent and relevant published studies on photocatalysis and catalyzed ozonation in water treatments using similar catalysts to those examined in our project.

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“…Zero-valent iron is a strong reducing agent and has been used in particulate form for the removal of different organic (aromatic compounds) for groundwater remediation in the form of permeable reaction barriers [9] or as a slurry [10]. ZVI in the form of micropowders with diameters in the range of 50 to 200 µm [11] or in the form of nanopowders [12] shows a good reactivity in the presence of H 2 O 2 , meaning it could react with the surface iron to produce Fe 2+ and Fe 3+ and initiate the Fenton process [13][14][15]. Several studies have demonstrated that the optimal pH in the case of ZVI shifts to higher values (4 to 6), allowing outstanding degradation efficiencies for organic aromatic compounds [16,17].…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have demonstrated that the optimal pH in the case of ZVI shifts to higher values (4 to 6), allowing outstanding degradation efficiencies for organic aromatic compounds [16,17]. However, zero-valent iron in particulate form has a strong tendency to aggregate, limiting its efficiency over time [12]. Additionally, uncontrolled iron leaching can occur, and the recovery and reusability of ZVI particles lead to the overall process having a higher cost [18].…”

Section: Introductionmentioning

confidence: 99%

Austenitic Stainless Steel as a Catalyst Material for Photo-Fenton Degradation of Organic Dyes

et al. 2022

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In this paper, a typical austenitic stainless steel was used as a catalyst in the visible photo-Fenton degradation process of two model dyes, methylene blue and methylorange, in the presence of hydrogen peroxide and potassium persulfate as free radical-generating species. The concentration intervals for both peroxide and persulfate were in the range of 333–1667 μg/L. Very high photodecoloration efficiencies have been achieved using peroxide (>93%), while moderate ones have been achieved using persulfate (>75%) at a pH value of 6.5. For methylene blue, the maximum mineralization yield of 74.5% was achieved using 1665 μg/L of hydrogen peroxide, while methylorange was better mineralized using 999 μg/L of persulfate. The photodegradation of the dye occurred in two distinct steps, which were successfully modeled by the Langmuir–Hinshelwood pseudo-first-order kinetic model. Reaction rate constants k between 0.1 and 4.05 h−1 were observed, comparable to those presented in the reference literature at lower pH values and higher concentrations of total iron from the aqueous media.

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Nano zero-valent iron on activated carbon cloth support as Fenton-like catalyst for efficient color and COD removal from melanoidin wastewater

Cited by 93 publications

References 44 publications

Endocrine-Disrupting Compounds: An Overview on Their Occurrence in the Aquatic Environment and Human Exposure

Endocrine-Disrupting Compounds: An Overview on Their Occurrence in the Aquatic Environment and Human Exposure

Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes

Austenitic Stainless Steel as a Catalyst Material for Photo-Fenton Degradation of Organic Dyes

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