Premium
Degradation of antibiotics amoxicillin by Co 3 O 4 ‐catalyzed peroxymonosulfate system
Author(s) -
Guo Weilin,
Su Shengnan,
Yi Chunliang,
Ma Zhenmin
Publication year - 2013
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.10633
Subject(s) - oxidizing agent , chemistry , sulfate , degradation (telecommunications) , radical , catalysis , aqueous solution , nuclear chemistry , chemical oxygen demand , inorganic chemistry , pollutant , organic chemistry , environmental engineering , telecommunications , wastewater , computer science , engineering
Sulfate radical‐based advanced oxidation processes (SR‐AOPs) are attracting considerable attention due to the high oxidizing ability of sulfate radical to degrade organic pollutants in aqueous environments. In this study, the degradation of antibiotics amoxicillin using SR‐AOPs was investigated. This process is based on the generation of sulfate radicals through Co 3 O 4 ‐mediated activation of peroxymonosulfate (PMS). Several parameters affecting antibiotics degradation such as Co 3 O 4 , PMS, pH, and temperature were investigated. The optimal conditions were found to be as follows: oxone concentration 0.01 mol·L −1 , Co 3 O 4 dosage 0.06 g, pH 6.0, reaction temperature 60°C, and reaction time 45 min. Under these optimum conditions, it was found that the chemical oxygen demand (COD) removal efficiency of 91.01% was achieved. The effect of ultrasound in the Co 3 O 4 /PMS system for amoxicillin degradation was also studied. © 2012 American Institute of Chemical Engineers Environ Prog, 32: 193‐197, 2013