High rate copper and energy recovery in microbial fuel cells.
High rate copper and energy recovery in microbial fuel cells.
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DOI：
10.3389/fmicb.2015.00527
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发表时间：
2015
影响因子：
5.2
通讯作者：
Sleutels TH
中科院分区：
文献类型：
--
作者：
Rodenas Motos P;Ter Heijne A;van der Weijden R;Saakes M;Buisman CJ;Sleutels TH
生物电化学系统(BESS)是一种新兴的金属回收技术。从实验室规模扩大到工业规模的先决条件是能够产生高电流和高功率密度。在这项研究中，我们报道了用实验室规模的BES从硫酸铜(2g L-1Cu2+)中快速回收铜。为了实现这一点，我们使用了一种新的单元配置来降低系统的内部电压损失。在阳极，电活性微生物在电极表面产生电子，当与阴极结合时，电极产生稳定的电池电压485 mV，在阴极中铜被还原。在该系统中，最大电流密度为23Am-2，功率密度为5.5Wm-2。X射线衍射分析证实，沉积在阴极表面的铜的纯度为99%。电压损失分析表明，在最大电流下，阴极和膜的电压损失最大，而阳极损失对总电压损失的贡献最小。这些结果促进了BESS在生物电化学金属回收方面的进一步发展。
Bioelectrochemical systems (BESs) are a novel, promising technology for the recovery of metals. The prerequisite for upscaling from laboratory to industrial size is that high current and high power densities can be produced. In this study we report the recovery of copper from a copper sulfate stream (2 g L-1 Cu2+) using a laboratory scale BES at high rate. To achieve this, we used a novel cell configuration to reduce the internal voltage losses of the system. At the anode, electroactive microorganisms produce electrons at the surface of an electrode, which generates a stable cell voltage of 485 mV when combined with a cathode where copper is reduced. In this system, a maximum current density of 23 A m-2 in combination with a power density of 5.5 W m-2 was produced. XRD analysis confirmed 99% purity in copper of copper deposited onto cathode surface. Analysis of voltage losses showed that at the highest current, most voltage losses occurred at the cathode, and membrane, while anode losses had the lowest contribution to the total voltage loss. These results encourage further development of BESs for bioelectrochemical metal recovery.
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影响因子：
10.2
作者：
Geman, Helyette;Smith, William O.
通讯作者：
Smith, William O.
影响因子：
6.6
作者：
ter Heijne, Annemiek;Hamelers, Hubertus V. M.;Buisman, Cees J. N.
通讯作者：
Buisman, Cees J. N.
影响因子：
8.1
作者：
Vegliò, F;Quaresima, R;Ubaldini, S
通讯作者：
Ubaldini, S
影响因子：
7.2
作者：
Sleutels, Tom H. J. A.;Hamelers, Hubertus V. M.;Buisman, Cees J. N.
通讯作者：
Buisman, Cees J. N.
影响因子：
11.4
作者：
Ter Heijne, Annemiek;Liu, Fei;Hamelers, Hubertus V. M.
通讯作者：
Hamelers, Hubertus V. M.