Arsenic removal from groundwater of Sivas-Şarkişla Plain, Turkey by electrocoagulation process: Comparing with iron plate and ball electrodes

Kobya, Mehmet; Özyonar, Fuat; Demirbaş, E.; Şık, E.; Öncel, Mehmet Salim

doi:10.1016/j.jece.2015.04.014

Cited by 69 publications

(18 citation statements)

References 43 publications

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“…The removal is favored when t values are higher, since the concentration of hydroxides of Al and Fe dissolved in the EC system is high. These hydroxides neutralize electrostatic charges on the dispersed particles, reducing the electrostatic repulsion between the particles to the point where van der Waals attractions become predominant and thereby facilitate the agglomeration and adsorption of the pollutants (Kobya et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Reduction of Soluble Organic Carbon and Removal of Total Phosphorus and Metals From Swine Wastewater by Electrocoagulation

Mello

Zakrzevski

et al. 2018

Braz. J. Chem. Eng.

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In this study, the effects of operating time (t), current density (CD) and initial pH were investigated for soluble organic carbon (SOC) and total phosphorus (TP) removal from swine wastewater, pretreated in an UASB reactor, using an electrocoagulation process with aluminum (Al) and iron (Fe) electrodes. For the optimal conditions, Cu, Zn, Mn, Fe and Al removal, sludge production and energy consumption were evaluated. The removal efficiencies for the Al electrode were 78%, 96%, 84%, 99%, 65% and 84% for SOC, TP, Cu, Zn, Mn and Fe, respectively. For the Fe electrode the removal efficiencies were 57%, 96%, 81%, 99 % and 61% for SOC, TP, Cu, Zn and Mn, respectively. The sludge generated, energy consumption, and theoretical hydrogen yields were 5 g/L, 1-18 kWh/L and 0.7-8.5 kWh, respectively. The electrocoagulation process can be used for soluble organic carbon, phosphorus and metals removal from swine wastewater.

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Section: Resultsmentioning

confidence: 99%

Reduction of Soluble Organic Carbon and Removal of Total Phosphorus and Metals From Swine Wastewater by Electrocoagulation

Mello

Zakrzevski

et al. 2018

Braz. J. Chem. Eng.

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“…Applied current affects the amount of coagulant and mixing rate of the solution in EC reactor [26]- [28]. Based on the Faraday's law, consumption of the anode material is directly correlated with the charge loading.…”

Section: Effect Of Applied Currentmentioning

confidence: 99%

Arsenate Removal from Groundwater by Air-injected EC with Al Ball Anodes: Effects of operational parameters

Gören¹,

Öncel²,

Kobya³

2020

Pamukkale J Eng Sci

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Treatment of arsenate from groundwater by electrocoagulation (EC) reactor with air supply unit using Al ball electrodes were studied in this paper. Influence of some operating variables, for instance, applied current (0.075-0.3 A), initial pH (5.5-8.5), air flow rate (0-6 L/min), size of Al ball electrodes (5-10 mm), and height of electrode in EC reactor (2-8 cm) on the As(V) removal efficiency were evaluated. The As (V) removal efficiency increased with the increment of applied current, air flow, electrode altitude in EC reactor, and EC time while its removal efficiency decreased with the increment of size of Al ball electrodes. The maximum As(V) removal percentage, minimum operating cost and energy consumption were found as 98.

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“…Electrocoagulation has been used to treat surface and groundwater, aiming to find the best parameters for pollutant removal such as arsenic (Jadhav et al, 2015;Kobya et al, 2015), heavy metals (Escobar et al, 2006;Mouedhen et al, 2008) and others (Moussa et al, 2017;Ghernaout et al, 2013;Zhu et al, 2005). The latest research in the area focuses on organic matter removal, using humic acid removal as reference to evaluate the efficiency of electrolytic process as a treatment for drinking water, since during water chlorination, humic substances cause the formation of disinfection byproducts precursors of carcinogenic compounds (Dubrawski et al, 2013;Ulu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Response Surface Methodology and Desirability Function as Statistical Tools in the Optimization of Electrocoagulation Process in Surface Water

Reis¹,

Combatt

Sanjuan

et al. 2020

jCEC

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The electrocoagulation for water clarification for purification have been studied as alternative to the processes of the water treatment. This study aimed to model and to optimize this process for types of water with different turbidity conditions; considering the current intensity, electrolysis time and initial pH on apparent color removal, chemical oxygen demand and surface water turbidity. Electrocoagulation tests were make aluminum electrodes. The optimal operating conditions and models based on the response surface methodology were obtained with central composite design. In order to comply with the esthetic / organoleptic standard stipulated for this stage of the process, the characterization of the three types of water studied must have color < 15 uH, COD < 18 mg L-1 O2 and turbidity < 5 NTU). The correlation between the analyzed answers allows finding specific conditions of the parameters, assisting in the determination of safe work points in the operation of clarification.

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Arsenic removal from groundwater of Sivas-Şarkişla Plain, Turkey by electrocoagulation process: Comparing with iron plate and ball electrodes

Cited by 69 publications

References 43 publications

Reduction of Soluble Organic Carbon and Removal of Total Phosphorus and Metals From Swine Wastewater by Electrocoagulation

Reduction of Soluble Organic Carbon and Removal of Total Phosphorus and Metals From Swine Wastewater by Electrocoagulation

Arsenate Removal from Groundwater by Air-injected EC with Al Ball Anodes: Effects of operational parameters

Response Surface Methodology and Desirability Function as Statistical Tools in the Optimization of Electrocoagulation Process in Surface Water

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