共 50 条
Electro-Fenton Method Oxidation of Salicylic Acid in Aqueous Solution with Graphite Electrodes
被引:30
作者:
George, Stephy Jacqueline
[1
]
Gandhimathi, Rajan
[1
]
Nidheesh, Puthiya Veetil
[1
]
Ramesh, Sreekrishnaperumal Thanga
[1
]
机构:
[1] Natl Inst Technol, Dept Civil Engn, Tiruchirappalli 620015, Tamil Nadu, India
关键词:
continuous stirred tank reactor;
electro-Fenton process;
flow rate;
graphite electrodes;
salicylic acid;
HYDROXYL RADICALS;
HYDROGEN-PEROXIDE;
WASTE-WATER;
IN-SITU;
DEGRADATION;
MINERALIZATION;
KINETICS;
REMOVAL;
DESTRUCTION;
CATHODE;
D O I:
10.1089/ees.2013.0242
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Electro-Fenton (EF) oxidation of salicylic acid (SA) from an aqueous solution was studied in a continuous stirred tank reactor with the purpose of optimizing the process parameters on a laboratory scale. A laboratory-scale continuous-flow rectangular reactor, with a predetermined 3 L liquid volume of SA in the reactor, was used for this study. Electrolytic reactions carried out for 100mg/L of SA solution, the parameters of catalyst concentration, pH, voltage, flow rate (residence time), and electrode spacing were varied. Electrolysis was carried out for a period of 10h to optimize these parameters. A maximum of 70% oxidation was obtained at an initial Fe2+ concentration of 5mg/L, pH of 2.5, voltage of 2.5 V, flow rate of 10mL/min, and electrode spacing of 3cm, after 10h of electrolysis. Results obtained show the feasibility of this continuous EF process for the oxidation of SA.
引用
收藏
页码:750 / 756
页数:7
相关论文