TITLE:
Treatment of Tannery Wastewater by the Application of Electrocoagulation Process Using Iron and Aluminum Electrodes
AUTHORS:
Abdalhadi Deghles
KEYWORDS:
Tannery Wastewater, Chemical Oxygen Demand, Electrocoagulation, Operating Costs
JOURNAL NAME:
Green and Sustainable Chemistry,
Vol.9 No.4,
October
12,
2019
ABSTRACT: Until relatively recently, little has been done of effective technique
“zero effluent” to conserve energy and water. Tannery wastewater is known as complex
characteristics. In this study batch electrocoagulation experiments were
carried out to assess the removal of color and chemical oxygen demand (COD)
from tannery wastewater using two types of electrode materials: aluminum and
iron. The effects of current density, electrolysis time and initial pH were
investigated for tannery wastewater. Therefore, the operating costs for each
electrode have been calculated. Based on results, it can be concluded that iron
is tremendous to aluminum as electrode material, from COD removal and energy
consumption views. All the conclusions of the study revealed that treatment of
tannery by EC can be applied as a step of a hybrid treatment.