The performance study on ultrasonic/Fe 3 O 4 /H 2 O 2 for degradation of azo dye and real textile wastewater treatment

Jaafarzadeh, Nematollah; Takdastan, Afshin; Jorfi, Sahand; Ghanbari, Farshid; Barzegar, Gelavizh

doi:10.1016/j.molliq.2018.02.047

Cited by 133 publications

(38 citation statements)

References 46 publications

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“…The AOS and COS values increased significantly from −6.63 to −4 and −1.24, respectively, after 2 hr of treatment time. This results are representatives of oxidized organic matters formed after treatment by EF process and proved the formation of further oxidized compounds during the reactions time (Jaafarzadeh et al, ). Moreover, these oxidized organic matters indirectly confirm that EF can easily enhance biodegradability.…”

Section: Resultsmentioning

confidence: 60%

“…where TOC and COD are the total organic carbon and the chemical oxygen demand (mg/L) of the solution after treatment by EF process and TOC 0 is initial TOC (mg/L) of leachate. AOS and COS are between +4 for carbon dioxide as the most oxidized state of carbon and −4 for CH 4 as the most reduced state of carbon (Ahmadi et al, ; Jaafarzadeh et al, ).…”

Section: Resultsmentioning

confidence: 99%

“…Hence, advanced oxidation processes (AOPs) stand out as an alternative solution for the removal of refractory organic matter from leachates, making them suitable to combine with a downstream biological process (Gomes, Santos, Silva, Boaventura, & Vilar, ; Mohajeri, Hamidi, Isa, & Zahed, ). In addition, these methods are environmental friendly techniques, simple to operate and easy to automate (Ghanbari & Moradi, ; Jaafarzadeh et al, ). However, when applied as a single treatment process, their operation can be quite expensive.…”

Section: Introductionmentioning

confidence: 99%

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Characterization and treatment of landfill leachates by electro‐Fenton process: A case study in Algeria

Rouidi

Maurício

Boukhrissa

et al. 2019

Water Environment Research

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The feasibility of the electro-Fenton (EF) process to improve the biodegradability of Algerian leachates was examined, in order to prepare this kind of flux for conventional biological treatment. This work also included, for the first time in Algeria, the control and monitorization of a landfill-the "Hamici" landfill. Several physicochemical parameters were determined allowing its classification into an intermediate degradation phase, namely considering their alkaline pH (8.7), high ammonium concentration (3,120 mg/L), low content in heavy metals, and biodegradability (BOD 5 / COD = 0.22). The effects of important parameters such as current intensity, treatment time, and temperature on COD removal have been studied and optimized by using response surface analysis of a central composite design, where 91.1% of COD was removed with a treatment time of 285 min, a current intensity of 3 A, and a temperature of 20°C. A biodegradability test, which was performed on a solution electrolyzed with 120 min, 2 A, and 20°C, allowed to improve the leachates biodegradability from 0.2 to 0.42, with a removal rate of COD and TOC of 53.35% and 34.5%, respectively. However, the current efficiency declined from 137% to 76.6% when the current intensity was rise from 0.5 to 2 A. These results showed the relevance of EF process applied on raw intermediate leachates and its possible benefit in the Algiers leachates treatment processes. Thus, it was concluded that biological treatment can be combined with EF process for optimal mineralization of leachates with clear advantages in this studied location. • Practitioner points• Characterization and treatment of leachates by electro-Fenton (EF) process were carried out. • The leachates are intermediate type and therefore biologically recalcitrant. • The operating parameter for EF process were modeled and optimized by the central composite design. • Current intensity of 2 A reduces COD and TOC of 53.35% and 34.5%, respectively. • The ratio BOD 5 /COD increased from 0.2 to 0.42 after 120 min of electrolysis time.

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Section: Resultsmentioning

confidence: 60%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characterization and treatment of landfill leachates by electro‐Fenton process: A case study in Algeria

Rouidi

Maurício

Boukhrissa

et al. 2019

Water Environment Research

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“…The method mentioned above was non destructive. These methods only change the waste into another phase so it still has a negative impacts such as unefficiency, non-biodegradradation, carcinogenic [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…In other ways there are more efficient and promising methods to resolve dye textiles such us photolysis [5], ozonolysis [4,11], solar irradiation and sonolysis [14,15] with and without catalyst addition where it decomposes organic dye coumpont into the simplest compount using photon and catalyst [10,11,16].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of Direct Yellow-27 by photolysis with UV-light and solar irradiation Using N-doped TiO2

Deliza¹,

Safni²,

Wellia³

et al. 2019

KEG

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Magnetic‐field‐induced Fe₃O₄@CNTs/PES/SPSf composite membrane for efficient removal of methylene blue by adsorption and catalytic degradation

Ji,

Zhang,

Han

et al. 2023

J of Applied Polymer Sci

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Novel composite membranes are successfully developed for adsorption and catalytic degradation of methylene blue (MB) by blending Fe3O4‐coated CNTs (Fe3O4@CNTs) nanoparticles in polyethersulfone (PES) and sulfonated polysulfone (SPSf) matrix via nonsolvent‐induced phase separation (NIPS) method assisted by magnetic field. Fe3O4@CNTs nanoparticles migrate to the separation layer under the induction of magnetic field, thus Fe3O4@CNTs/PES/SPSf composite membranes prepared under magnetic field exhibit a better dye removal ability compared with that without magnetic field. The MB removal ratio by Fe3O4@CNTs/PES/SPSf composite membrane containing 8 wt% Fe3O4@CNTs (M2−M) can reach up to 99% in 30 min under the conditions of 0.25 g composite membrane, 20 mg/L MB, 0.1 mol/L H2O2, pH = 3 and 80°C. Furthermore, the composite membranes show excellent recycling performance, as the MB removal capacity remains at 99% even after four cycles.

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The performance study on ultrasonic/Fe 3 O 4 /H 2 O 2 for degradation of azo dye and real textile wastewater treatment

Cited by 133 publications

References 46 publications

Characterization and treatment of landfill leachates by electro‐Fenton process: A case study in Algeria

Characterization and treatment of landfill leachates by electro‐Fenton process: A case study in Algeria

Photocatalytic degradation of Direct Yellow-27 by photolysis with UV-light and solar irradiation Using N-doped TiO2

Magnetic‐field‐induced Fe₃O₄@CNTs/PES/SPSf composite membrane for efficient removal of methylene blue by adsorption and catalytic degradation

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The performance study on ultrasonic/Fe 3 O 4 /H 2 O 2 for degradation of azo dye and real textile wastewater treatment

Cited by 133 publications

References 46 publications

Characterization and treatment of landfill leachates by electro‐Fenton process: A case study in Algeria

Characterization and treatment of landfill leachates by electro‐Fenton process: A case study in Algeria

Photocatalytic degradation of Direct Yellow-27 by photolysis with UV-light and solar irradiation Using N-doped TiO2

Magnetic‐field‐induced Fe3O4@CNTs/PES/SPSf composite membrane for efficient removal of methylene blue by adsorption and catalytic degradation

Contact Info

Product

Resources

About

Magnetic‐field‐induced Fe₃O₄@CNTs/PES/SPSf composite membrane for efficient removal of methylene blue by adsorption and catalytic degradation