Modeling and optimization of advanced oxidation treatment of beer industry wastewater using Electro-Fenton process

作者：Thirugnanasambandham K; Sivakumar V^*

来源：Environmental Progress & Sustainable Energy, 2015, 34(4): 1072-1079.

DOI：10.1002/ep.12104

• beer wastewater
• Electro-Fenton process
• model development
• optimization
• validation

The main objective of this study was to investigate and optimize the operating parameters in Electro-Fenton (E-Fenton) process such as current density, H2O2/Fe2+ molar ratio, treatment time, and temperature for the removal of turbidity and chemical oxygen demand from Beer wastewater. Response surface methodology (RSM) coupled with four factors three levels Box-Behnken response surface design (BBD) was used for the optimization. Significant quadratic polynomial models were obtained with high coefficient determination (R-2=0.9796 and 0.9804 for turbidity and COD removals) and numerical optimization was employed to determine the optimal conditions. Current density of 9 mA cm(-2), H2O2/Fe2+ molar ratio of 1.1, treatment time of 10 min, and temperature of 30 degrees C. Under these conditions, 98% of turbidity and 94% of COD were reduced. Results indicates that E-Fenton process was an effective pretreatment technology for the treatment of Beer wastewater.

• 出版日期2015-8