Abstract
This study recommended the effective condition in electrolysis of saline water considering the energy consumption. The experiments were performed using two types of electrodes, IrO2/Ti and Pt/Ti, under various salinity conditions (4, 8, 16, 32, and 46 PSU) and current density conditions (11, 33, 55, 111, and 222 mA/cm2). The electrolysis produced mainly bromine, which was measured as a total residual oxidant (TRO). Seawater electrolysis produced TRO linearly with increasing the run time and current density. Below 32 PSU, the electrolysis using the IrO2/Ti electrode produced the TRO greater than that using the Pt/Ti electrode. The TRO formation rate of the IrO2/Ti electrode increased following a half parabola pattern in terms of salinity, while that of the Pt/Ti electrode increased until 32 PSU, and then it decreased to 46 PSU. The measured electric power of both electrodes showed the same graph tendency with a parabolic curve as a quadratic equation. The energy consumption of the IrO2/Ti and Pt/Ti electrodes showed a quite different tendency. Considering the energy consumption as well as the required time for TRO formation, the same range of current density (30–50 mA/cm2) is recommended for the two electrodes, IrO2/Ti and Pt/Ti electrodes, even in a different tendency of energy consumption.
| Original language | English |
|---|---|
| Pages (from-to) | 10136-10145 |
| Number of pages | 10 |
| Journal | Desalination and Water Treatment |
| Volume | 57 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - 2016 May 8 |
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All Science Journal Classification (ASJC) codes
- Water Science and Technology
- Ocean Engineering
- Pollution
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Evaluation of energy consumption for effective seawater electrolysis based on the electrodes and salinity. / Jung, Youmi; Yoon, Yeojoon; Kwon, Minhwan; Roh, Sungcheoul; Hwang, Tae Mun; Kang, Joon Wun.
In: Desalination and Water Treatment, Vol. 57, No. 22, 08.05.2016, p. 10136-10145.Research output: Contribution to journal › Article
TY - JOUR
T1 - Evaluation of energy consumption for effective seawater electrolysis based on the electrodes and salinity
AU - Jung, Youmi
AU - Yoon, Yeojoon
AU - Kwon, Minhwan
AU - Roh, Sungcheoul
AU - Hwang, Tae Mun
AU - Kang, Joon Wun
PY - 2016/5/8
Y1 - 2016/5/8
N2 - This study recommended the effective condition in electrolysis of saline water considering the energy consumption. The experiments were performed using two types of electrodes, IrO2/Ti and Pt/Ti, under various salinity conditions (4, 8, 16, 32, and 46 PSU) and current density conditions (11, 33, 55, 111, and 222 mA/cm2). The electrolysis produced mainly bromine, which was measured as a total residual oxidant (TRO). Seawater electrolysis produced TRO linearly with increasing the run time and current density. Below 32 PSU, the electrolysis using the IrO2/Ti electrode produced the TRO greater than that using the Pt/Ti electrode. The TRO formation rate of the IrO2/Ti electrode increased following a half parabola pattern in terms of salinity, while that of the Pt/Ti electrode increased until 32 PSU, and then it decreased to 46 PSU. The measured electric power of both electrodes showed the same graph tendency with a parabolic curve as a quadratic equation. The energy consumption of the IrO2/Ti and Pt/Ti electrodes showed a quite different tendency. Considering the energy consumption as well as the required time for TRO formation, the same range of current density (30–50 mA/cm2) is recommended for the two electrodes, IrO2/Ti and Pt/Ti electrodes, even in a different tendency of energy consumption.
AB - This study recommended the effective condition in electrolysis of saline water considering the energy consumption. The experiments were performed using two types of electrodes, IrO2/Ti and Pt/Ti, under various salinity conditions (4, 8, 16, 32, and 46 PSU) and current density conditions (11, 33, 55, 111, and 222 mA/cm2). The electrolysis produced mainly bromine, which was measured as a total residual oxidant (TRO). Seawater electrolysis produced TRO linearly with increasing the run time and current density. Below 32 PSU, the electrolysis using the IrO2/Ti electrode produced the TRO greater than that using the Pt/Ti electrode. The TRO formation rate of the IrO2/Ti electrode increased following a half parabola pattern in terms of salinity, while that of the Pt/Ti electrode increased until 32 PSU, and then it decreased to 46 PSU. The measured electric power of both electrodes showed the same graph tendency with a parabolic curve as a quadratic equation. The energy consumption of the IrO2/Ti and Pt/Ti electrodes showed a quite different tendency. Considering the energy consumption as well as the required time for TRO formation, the same range of current density (30–50 mA/cm2) is recommended for the two electrodes, IrO2/Ti and Pt/Ti electrodes, even in a different tendency of energy consumption.
UR - http://www.scopus.com/inward/record.url?scp=84928653542&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928653542&partnerID=8YFLogxK
U2 - 10.1080/19443994.2015.1040272
DO - 10.1080/19443994.2015.1040272
M3 - Article
AN - SCOPUS:84928653542
VL - 57
SP - 10136
EP - 10145
JO - Desalination and Water Treatment
JF - Desalination and Water Treatment
SN - 1944-3994
IS - 22
ER -