Performance optimization of a batch scale electrocoagulation process using stainless steel mesh (304) cathode for the separation of oil-in-water emulsion

Wang, Junying; Kadier, Abudukeremu; Hao, Bin; Li, Hui; Ma, Peng‐Cheng

doi:10.1016/j.cep.2022.108901

Cited by 16 publications

(5 citation statements)

References 64 publications

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“…The presence of copper, manganese and molybdenum in the sewage sludge may result from partial adsorption of their ions from wastewater during electrocoagulation, as well as from cathode dissolution upon the action of salts, acids and bases [Wang et al 2022]. According to Picard et al [2000], the dissolution of the aluminum electrode is due to the impact of hydroxyl ions on the cathode.…”

Section: Resultsmentioning

confidence: 99%

The Impact of Electric Current for Sewage Sludge Characteristics from Anaerobic Sequencing Bio-Electrochemical Treatment of Sewage Generated During Soilless Tomato Cultivation

Bryszewski,

Rodziewicz,

Mielcarek

et al. 2023

J. Ecol. Eng.

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The aim of the present study was to determine: the impact of electric current density on the quantity and quality of sewage sludge produced in anaerobic sequencing bio-electrochemical reactor (AnSBBER) with an iron electrode during the treatment of drainage from soilless cultivation of tomatoes. Direct electric current (DC) effect was determined at its following densities (J): 0.63 A/m 2 (R1), 1.25 A/m 2 (R2), 2.5 A/m 2 (R3), and 5 A/m 2 (R4). Sodium acetate in (C:N) ratio of 1.0 was supplied to the reactors to ensure the proper biofilm development. Contents of elements (K, P, S, Na, Al, Cu, Fe, Mn, Mo, Zn, Mg, C, N and Ca) in the biofilm were determined. Additionally, the content of total suspended solids and the percentage share of volatile suspensions (VSS) in the sludge were determined. The study showed that the organic matter content in the sludge corresponded to the values typical of the stabilized sludge (up to 28.8% d.m. in R2).The increase in electric current density caused an increase in the concentration of phosphorus in the formed sludge (from 6.34 to 8.00% d.m. in 0.63 and 5.00 A/m 2 , respectively). The analyzed sludge, compared to municipal sludge from wastewater treatment plants with biological reactors and activated sludge chambers, is richer in such elements as phosphorus, nitrogen, calcium, magnesium, potassium, sodium, and iron.

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Section: Resultsmentioning

confidence: 99%

The Impact of Electric Current for Sewage Sludge Characteristics from Anaerobic Sequencing Bio-Electrochemical Treatment of Sewage Generated During Soilless Tomato Cultivation

Bryszewski,

Rodziewicz,

Mielcarek

et al. 2023

J. Ecol. Eng.

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“…The quantity of electrical energy that is used up throughout the EC process in order to eliminate one kilogram of COD is referred to as the energy consumption (EC). EC may be determined in terms of kWh/kg by using Equation ( 9) [39]:…”

Section: Methods Of Analysismentioning

confidence: 99%

An Electrocoagulation Process Operated at Batch Recirculation Mode for Treatment of Refinery Wastewaters: Optimization via Response Surface Methodology

Theydan

Mohammed²

2023

Egypt. J. Chem.

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The performance of an electrocoagulation process operated at a batch recirculation mode for treating petroleum refinery wastewater using aluminium as a sacrificial anode and stainless steel as a cathode was investigated. Effects of operating factors such as the applied voltage (15-30 V), flow rate (50-200 mL/min) and pH (4-10) on the chemical oxygen demand removal were investigated. Using Box-Behnken design (BBD), a mathematical model relating the essential operational parameters to chemical oxygen demand (COD) reduction was constructed. Results showed that chemical oxygen demand (COD) removal efficiency significantly increased with the increase in the applied voltage and with the increase in flow rate till the optimum value. Experimental chemical oxygen demand removal of 87.605% was attained at the optimized conditions (applied voltage=28.2 v, flow rate=200 mL/min, pH=7). Results showed that the successful of Box-Behnken design in determining the optimum condition for removal of chemical oxygen demand (COD).

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“…Exothermic reactions emit heat, which dissipates into the surrounding environment, elevating the solution temperature (Ullah, 2021). The heat generated has the potential to raise the temperature of the wastewater, thereby influencing both the efficacy of the treatment process and the quality of the final effluent (Wang et al, 2022). Consequently, meticulous monitoring and regulation of temperature throughout the electrocoagulation process become imperative, ensuring optimal performance, and mitigating potential adverse environmental impacts (Mao et al, 2023).…”

Section: Temperature Changes During the Electrocoagulation Processmentioning

confidence: 99%

Electrocoagulation Process for Chromium Removal in Leather Tanning Effluents

Hartati,

Hasyyati,

Permadi

et al. 2024

J. Ecol. Eng.

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The application of chromium sulfate in tanning operations yields chromium-laden wastewater, posing significant environmental risks. This research explored electrocoagulation as a remedial measure for tannery effluents. Varied parameters -pH (4, 7, 10), electric currents (0.5, 1.0, 1.5 A), and durations (1, 2, 3 h) -were optimized to diminish the chromium content. Evaluation based on initial and final chromium concentrations demonstrated 99.94% removal efficiency at pH 4, 1.5 A, over 3 hours. Achieving the 0.6 mg/L target concentration occurred at pH 4, 0.91 A, for 3 hours. This study highlighted the effectiveness of electrocoagulation in chromium mitigation within tannery wastewater, showcasing its potential as an environmentally sustainable remediation.

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Performance optimization of a batch scale electrocoagulation process using stainless steel mesh (304) cathode for the separation of oil-in-water emulsion

Cited by 16 publications

References 64 publications

The Impact of Electric Current for Sewage Sludge Characteristics from Anaerobic Sequencing Bio-Electrochemical Treatment of Sewage Generated During Soilless Tomato Cultivation

The Impact of Electric Current for Sewage Sludge Characteristics from Anaerobic Sequencing Bio-Electrochemical Treatment of Sewage Generated During Soilless Tomato Cultivation

An Electrocoagulation Process Operated at Batch Recirculation Mode for Treatment of Refinery Wastewaters: Optimization via Response Surface Methodology

Electrocoagulation Process for Chromium Removal in Leather Tanning Effluents

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