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Modeling and optimization of advanced oxidation treatment of beer industry wastewater using E lectro‐ F enton process
Author(s) -
Thirugnanasambandham K.,
Sivakumar V.
Publication year - 2015
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12104
Subject(s) - response surface methodology , turbidity , chemical oxygen demand , wastewater , molar ratio , box–behnken design , chemistry , quadratic model , process (computing) , process optimization , pulp and paper industry , materials science , chemical engineering , environmental engineering , chromatography , environmental science , computer science , engineering , organic chemistry , catalysis , geology , oceanography , operating system
The main objective of this study was to investigate and optimize the operating parameters in Electro‐Fenton (E‐Fenton) process such as current density, H 2 O 2 /Fe 2+ 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 , H 2 O 2 /Fe 2+ molar ratio of 1.1, treatment time of 10 min, and temperature of 30°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. © 2015 American Institute of Chemical Engineers Environ Prog, 34: 1072–1079, 2015