Floc size estimation in iron induced electrocoagulation and coagulation using sedimentation data

Larue, O.; Vorobiev, Eugène

doi:10.1016/s0301-7516(03)00026-7

Cited by 52 publications

(25 citation statements)

References 11 publications

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“…Electrocoagulation of dye solution using iron and aluminum electrodes takes place according to the following mechanisms [27][28][29][30] for the production of Fe(OH) n and Al(OH) n , where n=2 or 3.…”

Section: Resultsmentioning

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: Resultsmentioning

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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“…When the current density of 15 A m −2 was applied, the treatment time was of 2 min, while when the current densities applied were of 30 and 45 A m −2 , the arsenic was effectively removed in 0.5 and 0.08 min, respectively. This change in the treatment time is associated to the increasing of FH dosage produced by the electro-dissolving iron anodes at an increasing (Laure and Vorobiev 2003;Daneshvar et al 2004). Therefore, when high current densities are applied, the coagulation and the removal arsenic time improved.…”

Section: Effect Of the Electrolysis On The Ph Behaviormentioning

confidence: 99%

Improvement of Arsenic Electro-Removal from Underground Water by Lowering the Interference of other Ions

García-Lara

Montero‐Ocampo

2009

Water Air Soil Pollut

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Electrocoagulation (EC) has been evaluated as a treatment technology for arsenic (As) removal. Experiments were developed in an electrochemical reactor with three parallel iron plates. Current densities of 15, 30, and 45 A m −2 were used to treat model water and 45 A m −2 to treat underground water (GW). For both types of water, the EC process was able to decrease the residual arsenic concentration to less than 10μg L −1 . However, the treatment time for As removal from GW was higher. This phenomenon was attributed to the competition of dissolved species present in GW such as silica and calcium with arsenic for the adsorption sites on the ferric oxyhydroxides flocs generated during the EC process. A procedure is proposed to reduce such interference by the addition of a silica adsorption inhibitor compound into the GW achieving a reduction in the process time. The adsorption of arsenic species over adsorbent was found to follow Lagergren adsorption model.

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“…The generation of metal hydroxides [Fe (OH)n and Al(OH)n] are followed by an increase in the concentration of colloids (usually negatively charged) in the region close to the anode [35]. The produced ferrous ions hydrolyze to form monomeric hydroxide ions and polymeric hydroxide complexes that depend on the pH of the solution.…”

Section: Ec Using Aluminum Electrodesmentioning

confidence: 99%

Removal of Imidacloprid Pesticide by Electrocoagulation Process using Iron and aluminum Electrodes

Ghalwa¹

2015

J Environ Anal Chem

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Floc size estimation in iron induced electrocoagulation and coagulation using sedimentation data

Cited by 52 publications

References 11 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

Improvement of Arsenic Electro-Removal from Underground Water by Lowering the Interference of other Ions

Removal of Imidacloprid Pesticide by Electrocoagulation Process using Iron and aluminum Electrodes

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