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Color and Cod Removal Using Electrocoagulation for Post Treatment of Bio-treated Spent Distillery Wastewater (2014-2015)

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  • Color and Cod Removal Using Electrocoagulation for Post Treatment of Bio-treated Spent Distillery Wastewater (2014-2015)

Thesis Archive

Color and Cod Removal Using Electrocoagulation for Post Treatment of Bio-treated Spent Distillery Wastewater (2014-2015)

John Kristoffer Del Rosario Escano
Jaswinder Kaur Sagoo
Andrea Tayao Santos

Abstract:

-“Distillery plants in the Philippines generate large volumes of wastewater with significant concentration of pollutants and high color intensity. The typical treatment method employed is biological treatment whether it may be aerobic, anaerobic, or the combination of the two. This step reduces more than half of the pollutant load in the inlet stream. However, even after the major treatment, the outflow still cannot meet the standards set by DAO 35 for Class C effluents. The purpose of this paper was to further reduce the concentration of COD and color intensity in bio-treated spent distillery wastewater by employing electrocoagulation as a post-treatment procedure. The wastewater used was obtained from an actual distillery plant in the Philippines. The samples were acquired at a point after the aerobic stage of the major treatment. Experimental runs were conducted in an 18-liter semi-batch recirculation reactor with aluminum electrodes and an electrolysis time of 120 minutes. The effects of different parameters such as the initial pH (pH 3 and pH 8) of wastewater, flow rate (0.4 L/min and 1 L/min) and current density (35.92 A/m2 and 21.55 A/m2) on the performance of the electrocoagulation treatment process were determined. Also, other wastewater characteristics such as the pH, temperature, conductivity, dissolved oxygen, and total suspended solids abatement throughout the reaction time were observed. The results showed highest removal efficiency for COD and color at 17.58% and 49.27%, respectively at an initial pH of 3, flow rate of 0.4 L/min, and current density of 35.92 A/m2.”

Adviser:

Dr. Pag-asa D. Gaspillo
Dr. Leonila C. Abella

[email protected]
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