Energy consumption of electrooxidation systems with boron-doped diamond electrodes in the pulse current mode
Energy consumption of electrooxidation systems with boron-doped diamond electrodes in the pulse current mode
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脉冲电流模式下掺硼金刚石电极电氧化系统的能耗
DOI：
10.1007/s12613-013-0700-0
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发表时间：
2013-01
影响因子：
4.8
通讯作者：
Li, Cheng-ming
中科院分区：
文献类型：
--
作者：
Gao, Xu-hui;Hei, Li-fu;Askari, Jawaid;Li, Cheng-ming
采用脉冲电流技术在掺硼金刚石（BDD）阳极系统中进行电化学废水处理。由于羟基自由基在金刚石表面的强生成和弱吸附，BDD电极具有很强的电化学氧化有机化合物的能力，特别是在脉冲电流模式下。脉冲电流参数，如电流密度，脉冲占空比，和频率的影响进行了研究的化学需氧量（COD）去除，平均电流效率，和比能耗。结果表明，只有在适当的电流密度或脉冲占空比下，才能同时获得较高的COD去除率和较低的比能耗。提高频率可略微提高COD去除率和平均电流效率。比较了脉冲BDD阳极体系和恒BDD阳极体系对苯酚的电化学氧化，发现脉冲BDD阳极体系比恒BDD阳极体系具有更强的节能能力。结果表明，脉冲电流技术更经济有效，更适合用于真实的废水处理的BDD阳极系统。对上述结果进行了动力学分析。
A pulse current technique was conducted in a boron-doped diamond (BDD) anode system for electrochemical wastewater treatment. Due to the strong generation and weak absorption of hydroxyl radicals on the diamond surface, the BDD electrode possesses a powerful capability of electrochemical oxidation of organic compounds, especially in the pulse current mode. The influences of pulse current parameters such as current density, pulse duty cycle, and frequency were investigated in terms of chemical oxygen demand (COD) removal, average current efficiency, and specific energy consumption. The results demonstrated that the relatively high COD removal and low specific energy consumption were obtained simultaneously only if the current density or pulse duty cycle was adjusted to a reasonable value. Increasing the frequency slightly enhanced the COD removal and average current efficiency. A pulse-BDD anode system showed a stronger energy saving ability than a constant-BDD anode system when the electrochemical oxidation of phenol of the two systems was compared. The results prove that the pulse current technique is more cost-effective and more suitable for a BDD anode system for real wastewater treatment. A kinetic analysis was presented to explain the above results.
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影响因子：
8.8
作者：
M. Panizza;G. Cerisola
通讯作者：
M. Panizza;G. Cerisola
影响因子：
4.5
作者：
I. Sirés;E. Brillas;G. Cerisola;M. Panizza
通讯作者：
I. Sirés;E. Brillas;G. Cerisola;M. Panizza
影响因子：
11.4
作者：
Xiuping Zhu;Meiping Tong;Shaoyuan Shi;Huazhang Zhao;J. Ni
通讯作者：
Xiuping Zhu;Meiping Tong;Shaoyuan Shi;Huazhang Zhao;J. Ni
影响因子：
5.4
作者：
M. Panizza;P. Michaud;G. Cerisola;C. Comninellis
通讯作者：
M. Panizza;P. Michaud;G. Cerisola;C. Comninellis
影响因子：
6.6
作者：
Kapalka, Agnieszka;Foti, Gyoergy;Comninellis, Christos
通讯作者：
Comninellis, Christos