Investigation of direct and alternating current–electrocoagulation process for the treatment of distillery industrial effluent: Studies on operating parameters

Dairy industry wastewater is characterized by high biochemical oxygen demand (BOD5), chemical oxygen demand (COD), and other pollution load. The purpose of this study was to investigate the effects of the operating parameters such as applied voltage, number of electrodes, and reaction time on a real dairy wastewater in the electrocoagulation process. For this purpose, aluminum electrodes were used in the presence of potassium chloride as electrolytes. It has been shown that the removal efficiency of COD, BOD5, and TSS increased with increasing the applied voltage and the reaction time. The results indicate that electrocoagulation is efficient and able to achieve 98.84% COD removal, 97.95% BOD5removal, 97.75% TSS removal, and >99.9% bacterial indicators at 60 V during 60 min. The experiments demonstrated the effectiveness of electrocoagulation techniques for the treatment of dairy wastewaters. Finally, the results demonstrated the technical feasibility of electrocoagulation process using aluminum electrodes as a reliable technique for removal of pollutants from dairy wastewaters.

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The treatment of zinc-cyanide electroplating rinse water using an electrocoagulation process

Water Science & Technology ◽

10.2166/wst.2013.481 ◽

2013 ◽

Vol 68 (10) ◽

pp. 2220-2227 ◽

Cited By ~ 2

Author(s):

Elif Senturk

Keyword(s):

Electrode Material ◽

Operating Time ◽

Operating Conditions ◽

Optimum Operating ◽

Operating Parameters ◽

Initial Ph ◽

Electrocoagulation Process ◽

Removal Efficiencies ◽

Rinse Water ◽

Electrode Connection

This paper investigates the treatment of zinc-cyanide electroplating rinse water using an electrocoagulation process (ECP). The effects of operating parameters such as electrode material, current density (2.5–40 A/m2), operating time (0–60 min), initial pH (5–12) and electrode connection mode (monopolar parallel (MP-P), monopolar series and bipolar series) on the ECP were evaluated to find the optimum operating conditions. At 20 A/m2, 60 min, the highest removal efficiencies were obtained with 85 and 99% for Fe and 64 and 33% for Al electrodes, for cyanide and zinc, respectively. The optimum operating conditions were found to be 30 A/m2 and 40 min, for the Fe electrode at the original pH (9.5) of the rinse water. Considering efficiency and economy, the MP-P connection mode was determined as the optimum connection mode.

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Studies on various operating parameters for the removal of COD from pulp and paper industry using electrocoagulation process

Desalination and Water Treatment ◽

10.1080/19443994.2015.1046149 ◽

2015 ◽

Vol 57 (25) ◽

pp. 11746-11755 ◽

Cited By ~ 6

Author(s):

P. Asaithambi

Keyword(s):

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

Operating Parameters ◽

Electrocoagulation Process

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SMART SHIELD PANEL AC VOLTMETER CELL

Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini ◽

10.15407/publishing2021.60.065 ◽

2021 ◽

Vol 2021 (60) ◽

pp. 65-74

Author(s):

B.A. Kromplyas ◽

◽

A.S. Levytskyi ◽

Ie.O. Zaitsev ◽

◽

...

Keyword(s):

Alternating Current ◽

Measuring Instruments ◽

Operating Parameters ◽

Signal Source ◽

Structural Scheme ◽

Calibration Process ◽

Calibration Signal ◽

Operational Characteristics ◽

Calibration Algorithm

In this paper smart shield panel electrical operating parameters meters of energy generating facilities functionality is analysis. The list of functions of measuring instruments supplemented, which allowed increasing their operational characteristics. Methods and results of realization of these functions given for the panel board intellectualized voltage meter of alternating current. The structural scheme of the developed panel board intellectualized meter is described and its main technical characteristics are given.A method of mobile calibration of the device is proposed, in which a calibration signal source with a separate fixed value is used, and the calibration process itself is controlled from the device keyboard. A modernized detailed and simplified calibration algorithm is present. Ref. 12, fig. 5, tabl. 2.

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Removal of Cadmium from Industrial Wastewater using Electrocoagulation Process

Journal of Engineering ◽

10.31026/j.eng.2020.01.03 ◽

2019 ◽

Vol 26 (1) ◽

pp. 24-34 ◽

Cited By ~ 1

Author(s):

Mohammed Alameen Salem ◽

Najwa Majeed

Keyword(s):

Heavy Metal ◽

Removal Efficiency ◽

Applied Voltage ◽

Industrial Wastewater ◽

Batch Reactor ◽

Operating Parameters ◽

Initial Concentration ◽

Initial Ph ◽

Electrocoagulation Process ◽

Aluminum Electrodes

Cadmium is one of the heavy metal found in the wastewater of many industries. The electrocoagulation offers many advantages for the removal of cadmium over other methods. So the removal of cadmium from wastewater by using electrocoagulation was studied to investigate the effect of operating parameters on the removal efficiency. The studied parameters were the initial pH, initial concentration, and applied voltage. The study experiments were conducted in a batch reactor with with two pairs of aluminum electrodes with dimension and 2mm in thick with 1.5 cm space between them. The optimum removal was obtained at pH =7, initial concentration = 50 mg/L, and applied voltage = 20 V and it was 90%.

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Effect of alternating and direct current in an electrocoagulation process on the removal of cadmium from water

Water Science & Technology ◽

10.2166/wst.2012.859 ◽

2012 ◽

Vol 65 (2) ◽

pp. 353-360 ◽

Cited By ~ 16

Author(s):

S. Vasudevan ◽

J. Lakshmi

Keyword(s):

Energy Consumption ◽

Removal Efficiency ◽

Direct Current ◽

Current Density ◽

Adsorption Process ◽

Second Order ◽

Operating Parameters ◽

Electrocoagulation Process ◽

A Current

The main objective of this study was to investigate the effects of AC and DC on the removal of cadmium from water using iron as anode and cathode. The various operating parameters on the removal efficiency of cadmium were investigated. The results showed that the optimum removal efficiency of 98.1 and 97.3% with the energy consumption of 0.734 and 1.413 kWh/kL was achieved at a current density of 0.2 A/dm2, at pH of 7.0 using AC and DC respectively. The adsorption process follows second order kinetics and the temperature studies showed that adsorption was endothermic and spontaneous in nature.

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