Heterogeneous Fenton process by natural pyrite for removal of a textile dye from water: Effect of parameters and intermediate identification

Khataee, Alireza; Gholami, Peyman; Sheydaei, Mohsen

doi:10.1016/j.jtice.2015.06.015

Cited by 75 publications

(16 citation statements)

References 35 publications

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“…During the heterogeneous sono-Fenton-like process, a sample (3 mL) was withdrawn at 5, 10, 15, 20, 30, 40, 50 and 60 minutes after the start of the experiments, then, the BMM particles in the sample were separated from the solution by centrifuging. The AB92 solution absorbance (A) was determined at its maximum absorbance wavelength (λ max = 571 nm) by an UV−Vis spectrophotometer (WPA lightwave S2000, England) to calculate the RE% [23]. An atomic absorption spectroscopy (AAS) (Novaa 400, Analytikjena, Germany) was used for measurement of the leached iron concentration in the solution.…”

Section: Heterogeneous Sono-fenton-like Processmentioning

confidence: 99%

“…Mechanical ball milling (MBM) through high energy planetary ball mill has recently been utilized as a simple and cost effective alternative for production of nanoparticles instead of the conventional synthesis methods [22][23][24]. Moreover, nanoparticles can be formed at ambient temperature in large quantities during a short processing time.…”

Section: Introductionmentioning

confidence: 99%

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Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Dindarsafa

Khataee

Kaymak

et al. 2017

Ultrasonics Sonochemistry

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High energy planetary ball milling was applied to prepare sono-Fenton nanocatalyst from natural martite (NM). The NM samples were milled for 2-6h at the speed of 320rpm for production of various ball milled martite (BMM) samples. The catalytic performance of the BMMs was greater than the NM for treatment of Acid Blue 92 (AB92) in heterogeneous sono-Fenton-like process. The NM and the BMM samples were characterized by XRD, FT-IR, SEM, EDX and BET analyses. The particle size distribution of the 6h-milled martite (BMM) was in the range of 10-90nm, which had the highest surface area compared to the other samples. Then, the impact of main operational parameters was investigated on the process. Complete removal of the dye was obtained at the desired conditions including initial pH 7, 2.5g/L BMM dosage, 10mg/L AB92 concentration, and 150W ultrasonic power after 30min of treatment. The treatment process followed pseudo-first order kinetic. Environmentally-friendly modification of the NM, low leached iron amount and repeated application at milder pH were the significant benefits of the BMM. The GC-MS was successfully used to identify the generated intermediates. Eventually, an artificial neural network (ANN) was applied to predict the AB92 removal efficiency based upon the experimental data with a proper correlation coefficient (R=0.9836).

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Section: Heterogeneous Sono-fenton-like Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Dindarsafa

Khataee

Kaymak

et al. 2017

Ultrasonics Sonochemistry

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“…Since no complete removal of pharmaceuticals in wastewater by existing wastewater treatment technologies is possible , it is demanding to develop new and/or improved existing technologies for effective removal of pharmaceuticals. Many techniques were applied in the remediation of pharmaceuticals from aqueous medium, including photocatalytic degradation , membranes , ozonation , Fenton process , electrochemical techniques , reverse osmosis , chemical precipitation , advanced oxidation processes , adsorption , etc. Scientists have studied the adsorption and remediation of pharmaceuticals using several adsorbents .…”

Section: Introductionmentioning

confidence: 99%

Fixed‐Bed and Batch Adsorption of Pharmaceuticals from Aqueous Solutions on Ionic Liquid‐Modified Montmorillonite

Lawal

Moodley

2018

Chem Eng & Technol

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Batch and column adsorption of four pharmaceuticals, namely, tetracycline (TC), sulfamethoxazole (SMZ), nalidixic acid (NAD), and chloramphenicol (CHL) on ionic liquid modified montmorillonite (Mt‐IL) was evaluated. The effects of variation in pH and contact time were analyzed and the data were fitted to kinetics and isotherm models. The equilibrium experimental data were best explained by the Freundlich model. A pseudo second‐order kinetic model described all pharmaceuticals adsorbed on Mt‐IL. In column studies, the exchange zone depth, adsorption capacity, the required time for the pharmaceuticals to move through the height of the adsorbent in the column, and adsorption rates were investigated by the Yoon‐Nelson and the Thomas and Adams‐Bohart models.

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“…To treat polluted soils, underground waters and wastewaters, catalytic heterogeneous processes employing magnetite (Fe 3 O 4 ), hematite (Fe 2 O 3 ), goethite (a-FeOOH), and magnetite (g-Fe 2 O 3 ) have been utilized widely in recent years. These sort of solid catalysts have significant potential to degrade resistant organic pollutants (e.g., dyes and phenol compounds) [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Pilot plant fluidized‐bed reactor for degradation of basic blue 3 in heterogeneous fenton process in the presence of natural magnetite

Aghdasinia

Khataee

Sheikhi

et al. 2017

Env Prog and Sustain Energy

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Degradation of basic blue 3 (BB3) was studied in a pilot scale fluidized‐bed reactor (FBR) utilizing natural magnetite (NM) nanostructures for heterogeneous Fenton process. The morphology, structure, and specific surface area of NM nanostructure were determined employing scanning electron microscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy (XPS), and Brunauer‐Emmett‐Teller (BET) methods, respectively. High mass transfer coefficients, continuous operating condition and high reaction rates due to suitable and sufficient contact of phases, can be noted as significant advantages of FBR. Influences of factors, which affect performance of fluidized‐bed heterogeneous Fenton process (NM/H2O2), for instances initial concentration of contaminant and H2O2, initial pH of solution and dosage of catalyst were investigated. At the desired operational condition, pH 5, 4 mM of H2O2, and 2.27 g/L of NM after 190 min, the degradation percentage of 84%. Excess amounts of catalyst dosage and hydrogen peroxide tend to scavenge hydroxyl radicals by H2O2 molecules. Whereas low initial concentration of the dye and low initial solution pH, enhanced the BB3 degradation. Reusability of NM through five successive experiments, demonstrated the acceptable proficiency of NM as catalyst for oxidative BB3 degradation. © 2017 American Institute of Chemical Engineers Environ Prog, 36: 1039–1048, 2017

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Heterogeneous Fenton process by natural pyrite for removal of a textile dye from water: Effect of parameters and intermediate identification

Cited by 75 publications

References 35 publications

Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Heterogeneous sono-Fenton-like process using martite nanocatalyst prepared by high energy planetary ball milling for treatment of a textile dye

Fixed‐Bed and Batch Adsorption of Pharmaceuticals from Aqueous Solutions on Ionic Liquid‐Modified Montmorillonite

Pilot plant fluidized‐bed reactor for degradation of basic blue 3 in heterogeneous fenton process in the presence of natural magnetite

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