Enhanced removal of Methylene Blue by electrocoagulation using iron electrodes

Mahmoud, Mohamed S.; Farah, Joseph Y.; Farrag, Taha E.

doi:10.1016/j.ejpe.2012.09.013

Cited by 93 publications

(33 citation statements)

References 14 publications

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“…The removal efficiency of RR 24 and COD increased up to [99.85% and 90.5% at Fe and 98.7% and 83.8% at Al respectively] by increasing the current density. The current density determines the coagulant production rate and the size of the bubble production and hence affects their growth [33,34]. Upon increasing current density, the amount of oxidized iron increased and amounts of metal hydroxide compounds for precipitation and adsorption of the matrix were also increased [35].…”

Section: Effect Of Current Densitymentioning

confidence: 99%

Removal of Reactive Red 24 Dye by Clean Electrocoagulation Process Using Iron and Aluminum Electrodes

Ghalwa¹,

Saqer²,

Farhat³

2015

J Chem Eng Process Technol

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In this research, the efficiency of electrocoagulation treatment process using iron and aluminum electrodes to treat synthetic wastewater containing Reactive Red 24 (RR 24) was studied. The effects of parameters such as current density, pH, type of electrolyte, initial dye concentration, electrolyte concentration, temperature, and inter electrode distance on dye removal efficiency were investigated. The results showed that dye and chemical oxygen demand removals were 99.6% and 91.5% by using iron and were 97.9% and 83.8%, by using aluminum electrodes. The removal of dye exhibited pseudo first order with good correlation coefficients (0.955 and 0.990 for Fe and Al electrodes respectively. It can be concluded that electrocoagulation process by Iron electrode is very efficient and clean process for reactive dye removal from colored wastewater.

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Section: Effect Of Current Densitymentioning

confidence: 99%

Removal of Reactive Red 24 Dye by Clean Electrocoagulation Process Using Iron and Aluminum Electrodes

Ghalwa¹,

Saqer²,

Farhat³

2015

J Chem Eng Process Technol

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“…pH, alkalinity, chloride and conductivity of the synthetic wastewater were 7.4±0.1, 640 mg/L as CaCO 3 , 600 mg/L as Cl -and 2400 µsiemens/cm respectively. The batch study was conducted at an agitation speed of 140 rpm in a mechanical shaker with an initial MB concentration of 100 mg/L.…”

Section: Experimental Studiesmentioning

confidence: 99%

“…Therefore, it is necessary to remove this dye from contaminated water before its discharge to environment. Various treatment technologies that are available for the removal of it from wastewater include  Corresponding author adsorption [1], photodegradation [2], electrocoagulation [3], advanced oxidation [4], biological process [5] etc.…”

Section: Introductionmentioning

confidence: 99%

Adsolubilization of Organic Dye through Surfactant Modified Silica Gel Waste from Aquatic Environment Batch and Fixed Bed Studies Wastewater Treatment

Adak¹,

Koner²

2016

Fourth International Conference on Advances in Civil, Structural and Environmental Engineering - ACSEE 2016

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Abstract-The adsolubilization of organic dye (Methylene blue, MB) was studied in both batch and continuous mode using silica gel waste (SGW) after modification of its surface by surfactant, to be called as surfactant modified silica gel waste (SMSGW). In batch mode, the kinetic study, dose study and effect of different interfering substances were conducted. In continuous mode, the SMSGW packed column was analysed by logit model. The equilibrium contact time and optimum adsorbent dose were found out to be 45 minutes and 8 g/L respectively for an initial MB concentration of 100 mg/L. From column study, the values of adsorption rate constant (K) and adsorption capacity constant (N o ) were obtained as 0.018063 L/mg.h and 20501 mg/L respectively. The SMSGW was efficiently regenerated by rectified spirit. From the studies, SMSGW was found to be an efficient adsorbing media for dye removal.

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“…In the past decades, the release of dye effluents from industries such as textile, paper and pulp, leather, food, cosmetic, and etc., has become one of the major environmental concerns owing to their carcinogenic, genotoxic, and/or mutagenic nature (3,4). About 20% to 50% of used reactive dyes in textile mills can be released in aquatic environments (5). Reactive dyes are usually soluble in water and they applied for dyeing of cellulose fibers such as rayon and cotton; however, they are also used for leather, nylon, silk, and wool (6).…”

Section: Introductionmentioning

confidence: 99%

Removal of Reactive Blue 52 by Electrocoagulation and UV/Persulfate from Aqueous Solutions

et al. 2020

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Background: Discharge colored wastewaters without treatment is the main source of aquatic pollution, which will cause considerable impacts to the environment. Objectives: The main objective of this study was the investigation of electrocoagulation merged with advanced oxidation (UV/persulfate) as a novel treatment method in reactive blue 52 removal from aquatic environments. Methods: This work was an experimental study that was done in a glass beaker coupled with two electrodes made of iron, which had an effective total surface area of 60 cm 2 as an electrocoagulation reactor and other cylindrical reactor equipped with 2 UV-C lamps (6 W) as an advanced reactor for reactive blue 52 removal. The parameters affecting the electrocoagulation process such as pH, current density, initial concentration of reactive blue 52, and reaction time was studied. Then, waste obtained from the previous stage exposed to the persulfate process and effect of operating parameters such as pH; sodium persulfate dosage was investigated. Results: Obtained results illustrate that reactive blue 52 was removed with 82.4% efficiency in the below optimal condition: pH = 7, density of current = 10 mA/cm 2 , and time of reaction = 30 min, respectively. In the hybrid process of electrocoagulation and UV/persulfate (pH = 7 and Na2S2O8 = 15 mM/L), the process efficiency in removal of dye was achieved at about 98.86%. Conclusions: Based on the obtained results, combination of two mentioned processes is an efficient and effective method for reactive blue 52 removal from aqueous environments.

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Enhanced removal of Methylene Blue by electrocoagulation using iron electrodes

Cited by 93 publications

References 14 publications

Removal of Reactive Red 24 Dye by Clean Electrocoagulation Process Using Iron and Aluminum Electrodes

Removal of Reactive Red 24 Dye by Clean Electrocoagulation Process Using Iron and Aluminum Electrodes

Adsolubilization of Organic Dye through Surfactant Modified Silica Gel Waste from Aquatic Environment Batch and Fixed Bed Studies Wastewater Treatment

Removal of Reactive Blue 52 by Electrocoagulation and UV/Persulfate from Aqueous Solutions

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