Electrocoagulation applications for industrial wastewaters: a critical review

Kabdaşlı, Işık; Arslan-Alaton, İdil; Ölmez-Hancı, Tuğba; Tünay, Olcay

doi:10.1080/21622515.2012.715390

Cited by 312 publications

(144 citation statements)

References 195 publications

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“…According to Holt et al [6] EC is a combination of physico-chemical processes including electrochemistry, coagulation and flotation. EC is efficient in the treatment of a large variety of effluents [8]. It is often emphasized that chemicals are not required in EC when it is directly applied to a wastewater.…”

Section: Introductionmentioning

confidence: 99%

Cetylpyridinium removal using phosphate-assisted electrocoagulation, electroreduction and adsorption on electrogenerated sorbents

Flilissa

Méléard

Darchen

2016

Chemical Engineering Journal

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Section: Introductionmentioning

confidence: 99%

Cetylpyridinium removal using phosphate-assisted electrocoagulation, electroreduction and adsorption on electrogenerated sorbents

Flilissa

Méléard

Darchen

2016

Chemical Engineering Journal

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“…The adequate composition of sodium chloride should be used in electrochemical coagulation. 21 The addition of NaCl decreases the specific energy consumption due to decreased total resistance in the solution and voltage by increasing ionic strength with constant current density.…”

Section: Resultsmentioning

confidence: 99%

Moringa oleifera: A COST EFFECTIVE COAGULANT FOR DYE DEGRADATION

2017

RJC

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The purpose of the work is to understand the effect of the ratio of Moringa olifera Seed powder and NaCl, current density, initial pH and agitation speed on color removal efficiency as well as COD removal from synthetic textile wastewater in the electro-coagulation technique using iron and steel electrodes. The suitable conditions for reducing color as well as COD were as follows: ratio of Moringa Olifera Seed powder and NaCl = 1: 1.5; current density = 15 mA/cm2; initial pH = 7-8; agitation speed = 400 rpm. The efficiency of color reduction and COD reduction under these conditions were found to be 60% and 55% respectively. This investigation proved that the electro-coagulation technique is a suitable method for the treatment of dye industry effluents for the purpose of reuse.

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“…Increasing the electrolysis time was known to have a major role in the performance of the electrochemical processes. The longer the treatment time, the more complex the ions are that are generated on the aluminum electrodes and are released into the solution [69]. This, in turn, increases the hydroxide flocs which are responsible for the precipitation and adsorption of the emerging contaminants.…”

Section: Initial Pharmaceutical Concentrationsmentioning

confidence: 99%

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

Ensano

Borea

Naddeo

et al. 2017

Water

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Abstract:The continuous release of emerging contaminants (ECs) in the aquatic environment, as a result of the inadequate removal by conventional treatment methods, has prompted research to explore viable solutions to this rising global problem. One promising alternative is the use of electrochemical processes since they represent a simple and highly efficient technology with less footprint. In this paper, the feasibility of treating ECs (i.e., pharmaceuticals) using an intermittent electrocoagulation process, a known electrochemical technology, has been investigated. Diclofenac (DCF), carbamazepine (CBZ) and amoxicillin (AMX) were chosen as being representative of highly consumed drugs that are frequently detected in our water resources and were added in synthetic municipal wastewater. The removal efficiencies of both individual and combined pharmaceuticals were determined under different experimental conditions: hydraulic retention time (HRT) (6, 19 and 38 h), initial concentration (0.01, 4 and 10 mg/L) and intermittent application (5 min ON/20 min OFF) of current density (0.5, 1.15 and 1.8 mA/cm 2 ). Results have shown that these parameters have significant effects on pharmaceutical degradation. Maximum removals (DCF = 90%, CBZ = 70% and AMX = 77%) were obtained at a current density of 0.5 mA/cm 2 , an initial concentration of 10 mg/L and HRT of 38 h.

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Electrocoagulation applications for industrial wastewaters: a critical review

Cited by 312 publications

References 195 publications

Cetylpyridinium removal using phosphate-assisted electrocoagulation, electroreduction and adsorption on electrogenerated sorbents

Cetylpyridinium removal using phosphate-assisted electrocoagulation, electroreduction and adsorption on electrogenerated sorbents

Moringa oleifera: A COST EFFECTIVE COAGULANT FOR DYE DEGRADATION

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

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