Microbial desalination cells packed with ion-exchange resin to enhance water desalination rate
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- 作者：Alex ; re Morel ; Kuichang Zuo ; Xue Xia ; Jincheng Wei ; Xi Luo ; Peng Liang ; Xia Huang
- 关键词：Microbial desalination cell ; Ion-exchange resin ; Water desalination ; Ohmic resistance
- 刊名：Bioresource Technology
- 出版年：2012
- 出版时间：August, 2012
- 年：2012
- 卷：118
- 期：Complete
- 页码：43-48
- 全文大小：475 K
文摘
A novel configuration of microbial desalination cell (MDC) packed with ion-exchange resin (R-MDC) was proposed to enhance water desalination rate. Compared with classic MDC (C-MDC), an obvious increase in desalination rate (DR) was obtained by R-MDC. With relatively low concentration (10-2 g/L NaCl) influents, the DR values of R-MDC were about 1.5-8 times those of C-MDC. Ion-exchange resins packed in the desalination chamber worked as conductor and thus counteracted the increase in ohmic resistance during treatment of low concentration salt water. Ohmic resistances of R-MDC stabilized at 3.0-4.7 ¦¸. By contrast, the ohmic resistances of C-MDC ranged from 5.5 to 12.7 ¦¸, which were 55-272 % higher than those of R-MDC. Remarkable improvement in desalination rate helped improve charge efficiency for desalination in R-MDC. The results first showed the potential of R-MDC in the desalination of water with low salinity.