Title :
A Fenton-like system combined by Co2+ and potassium Monopersulfate for the treatment of benzoic acid
Author :
Chen, Liwei ; Ma, Jun
Author_Institution :
State Key Lab. of Urban Water Resource & Environ., Harbin Inst. of Technol., Harbin, China
Abstract :
In this paper, the Fenton-like oxidation system combined by Co2+ and potassium Monopersulfate (PMS) for the treatment of benzoic acid (BA) was investigated. The BA degradation was increased with the increasing of Co2+ dosage and PMS dosage. However, when the molar ratios of Co2+ to PMS were higher than 1:50, the increase of BA degradation rates were not so visible. The new system was more efficient than the conventional Fenton system for it shown obvious catalytic activity in a much wider pH range from 4 to 10. The Co2+/PMS system led the formation of sulfate radicals, which were identified with quenching studies using specific alcohols. The sulfate radicals are stronger oxidants than hydroxyl radicals especially in neutral pH range. The Co2+/PMS Fenton-like oxidation process could be considered as one of the most promising technologies for practical application for water treatment.
Keywords :
chemical engineering; oxidation; pH; water treatment; BA degradation; Co2+; PMS Fenton like oxidation process; benzoic acid treatment; hydroxyl radicals; neutral pH range; potassium monopersulfate; sulfate radicals; water treatment; Barium; Cobalt; Degradation; Iron; Oxidation; System-on-a-chip; Water resources; Co2+; Fenton-like; benzoic acid; potassium monopersulfate;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2011 International Conference on
Conference_Location :
XianNing
Print_ISBN :
978-1-61284-458-9
DOI :
10.1109/CECNET.2011.5769359
