Abstract
We investigated the Fe-regeneration-based cathodic electro-Fenton process using commercial electrodes, to achieve reducing the initial Fe dose and consequent sludge accumulation. The obtained results provided insights into the cathodic electro-Fenton process using two-electrode electrochemical system. The grade 2 Ti mesh electrode could effectively regenerate Fe(II) at 1.2 V, whose potential was lower than those of the two other electrode systems reported in the literatures. In the actual wastewater treatment, compared with general-Fenton process, the reduction in the initial Fe injection was 33% and the sludge reduction was 38%. Furthermore, the removal efficiency using electro-Fenton was at least 5% higher than that of the general-Fenton process at the same initial dose. The low cell voltage (1.2 V) led to lower energy consumption (3.5 J mg−1) relative to those of other electro-Fenton systems, i.e., anodic electro-Fenton and peroxide generation. With its competitive degradation performances, low energy consumption, and reduced initial Fe injection, the present cathodic electro-Fenton process was shown to be a promising route of waste treatment.
| Original language | English |
|---|---|
| Article number | 335 |
| Journal | Water, Air, and Soil Pollution |
| Volume | 229 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 2018 Oct 1 |
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Keywords
- Actual wastewater
- Electro-Fenton
- Energy consumption
- Organic pollutant
- Water treatment
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Ecological Modelling
- Water Science and Technology
- Pollution
Cite this
Degradation of Organic Compounds in Actual Wastewater by Electro-Fenton Process and Evaluation of Energy Consumption. / Kim, Hee Gon; Ko, Yong Jin; Lee, Soon-Jae; Hong, Seok Won; Lee, Wook Seong; Choi, Jae Woo.
In: Water, Air, and Soil Pollution, Vol. 229, No. 10, 335, 01.10.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Degradation of Organic Compounds in Actual Wastewater by Electro-Fenton Process and Evaluation of Energy Consumption
AU - Kim, Hee Gon
AU - Ko, Yong Jin
AU - Lee, Soon-Jae
AU - Hong, Seok Won
AU - Lee, Wook Seong
AU - Choi, Jae Woo
PY - 2018/10/1
Y1 - 2018/10/1
N2 - We investigated the Fe-regeneration-based cathodic electro-Fenton process using commercial electrodes, to achieve reducing the initial Fe dose and consequent sludge accumulation. The obtained results provided insights into the cathodic electro-Fenton process using two-electrode electrochemical system. The grade 2 Ti mesh electrode could effectively regenerate Fe(II) at 1.2 V, whose potential was lower than those of the two other electrode systems reported in the literatures. In the actual wastewater treatment, compared with general-Fenton process, the reduction in the initial Fe injection was 33% and the sludge reduction was 38%. Furthermore, the removal efficiency using electro-Fenton was at least 5% higher than that of the general-Fenton process at the same initial dose. The low cell voltage (1.2 V) led to lower energy consumption (3.5 J mg−1) relative to those of other electro-Fenton systems, i.e., anodic electro-Fenton and peroxide generation. With its competitive degradation performances, low energy consumption, and reduced initial Fe injection, the present cathodic electro-Fenton process was shown to be a promising route of waste treatment.
AB - We investigated the Fe-regeneration-based cathodic electro-Fenton process using commercial electrodes, to achieve reducing the initial Fe dose and consequent sludge accumulation. The obtained results provided insights into the cathodic electro-Fenton process using two-electrode electrochemical system. The grade 2 Ti mesh electrode could effectively regenerate Fe(II) at 1.2 V, whose potential was lower than those of the two other electrode systems reported in the literatures. In the actual wastewater treatment, compared with general-Fenton process, the reduction in the initial Fe injection was 33% and the sludge reduction was 38%. Furthermore, the removal efficiency using electro-Fenton was at least 5% higher than that of the general-Fenton process at the same initial dose. The low cell voltage (1.2 V) led to lower energy consumption (3.5 J mg−1) relative to those of other electro-Fenton systems, i.e., anodic electro-Fenton and peroxide generation. With its competitive degradation performances, low energy consumption, and reduced initial Fe injection, the present cathodic electro-Fenton process was shown to be a promising route of waste treatment.
KW - Actual wastewater
KW - Electro-Fenton
KW - Energy consumption
KW - Organic pollutant
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=85054170733&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85054170733&partnerID=8YFLogxK
U2 - 10.1007/s11270-018-3987-7
DO - 10.1007/s11270-018-3987-7
M3 - Article
AN - SCOPUS:85054170733
VL - 229
JO - Water, Air, and Soil Pollution
JF - Water, Air, and Soil Pollution
SN - 0049-6979
IS - 10
M1 - 335
ER -