School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China.
Bioresour Technol. 2012 Jul;116:507-11. doi: 10.1016/j.biortech.2012.03.073. Epub 2012 Apr 14.
The microbial electrolysis desalination and chemical-production cell (MEDCC) is a device to desalinate seawater, and produce acid and alkali. The objective of this study was to enhance the desalination and chemical-production performance of the MEDCC using two types of stack structure. Experiments were conducted with different membrane spacings, numbers of desalination chambers and applied voltages. Results showed that the stack construction in the MEDCC enhanced the desalination and chemical-production rates. The maximal desalination rate of 0.58 ± 0.02 mmol/h, which was 43% higher than that in the MEDCC, was achieved in the four-desalination-chamber MEDCC with the AEM-CEM stack structure and the membrane spacing of 1.5mm. The maximal acid- and alkali-production rates of 0.079 ± 0.006 and 0.13 ± 0.02 mmol/h, which were 46% and 8% higher than that in the MEDCC, respectively, were achieved in the two-desalination-chamber MEDCC with the BPM-AEM-CEM stack structure and the membrane spacing of 3mm.
微生物电解脱盐和化学产物电池（MEDCC）是一种用于海水脱盐和生产酸、碱的装置。本研究的目的是通过两种堆叠结构来提高 MEDCC 的脱盐和化学产物性能。实验采用不同的膜间距、脱盐室数量和施加电压进行。结果表明，MEDCC 中的堆叠结构增强了脱盐和化学产物的速率。在 AEM-CEM 堆叠结构和 1.5mm 膜间距的四室 MEDCC 中，最大脱盐速率达到 0.58±0.02mmol/h，比 MEDCC 提高了 43%。在 BPM-AEM-CEM 堆叠结构和 3mm 膜间距的两室 MEDCC 中，最大产酸和产碱速率分别达到 0.079±0.006mmol/h 和 0.13±0.02mmol/h，比 MEDCC 分别提高了 46%和 8%。
