Influences of Solution Chemistry on Phenol Removal From Aqueous Environments by Electrocoagulation Process Using Aluminum Electrodes

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

Journal of Environmental Analytical Chemistry ◽

10.4172/2380-2391.1000154 ◽

2015 ◽

Vol 02 (04) ◽

Cited By ~ 3

Author(s):

Nasser Ghalwa MA

Keyword(s):

Electrocoagulation Process ◽

Aluminum Electrodes

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A COMPARISON BETWEEN ALUMINIUM AND IRON ELECTRODES IN ELECTROCOAGULATION PROCESS FOR GLYPHOSATE REMOVAL

Jurnal Teknologi ◽

10.11113/jt.v77.6982 ◽

2015 ◽

Vol 77 (32) ◽

Cited By ~ 2

Author(s):

Rabiatuladawiyah Danial ◽

Luqman Chuah Abdullah ◽

Mohsen Nourouzi Mobarekeh ◽

Shafreeza Sobri ◽

Nordayana Mohd Adnan

Keyword(s):

Charged Particles ◽

Deionized Water ◽

Water Production ◽

Batch Mode ◽

Initial Concentration ◽

Iron Electrodes ◽

Metal Plates ◽

Aqueous Environments ◽

Electrocoagulation Process ◽

Set Up

This study was intended to compare the performance of electrocoagulation process using aluminium and iron electrodes for glyphosate removal in aqueous solution. The effects of initial glyphosate concentration, electrocoagulation time and distance between electrodes, were discussed in detail. An electrocoagulation tank of 500mL with two metal plates electrodes, same in dimensions and metal types, was set up to perform batch mode laboratory experiment and the glyphosate in white powder was first diluted with deionized water. Production of metal cations showed an ability to neutralize negatively charged particles, which then encouraged to bind together to form aggregates of flocs composed of a combination of glyphosate and metal hydroxide. Compared with iron electrodes, aluminium electrodes were more effective for glyphosate removal, with a removal efficiency of over than 80%. This study revealed that electrocoagulation process using aluminium electrodes is reliable, especially designed for initial concentration 100 mg/L, electrocoagulation time 50 min, and distance between electrodes 6 cm. Finally, it can be concluded that electrocoagulation process using aluminium electrodes is efficient for glyphosate removal from aqueous environments.

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