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  • sustainable water desalination and electricity generation in a separator coupled stacked microbial desalination cell with buffer free electrolyte circulation

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 491
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a separator coupled circulation stacked microbial desalination cell (c-smdc-s) was constructed to stabilize the ph imbalances in mdcs without buffer solution and achieved the stable desalination. the long-term operation of c-smdc-s, regular stacked mdc (smdc) and no separator coupled circulation smdc (c-smdc) were tested. the smdc and c-smdc could only stably operate for 1 week and 1 month owing to dramatic anolyte ph decrease and serious biofilm growth on the air cathode, respectively. the c-smdc-s gained in anolyte alkalinity and operated stably for about 60 days without the thick biofilm growth on cathode. besides, the chemical oxygen demand removal and coulombic efficiency were 64 ± 6% and 30 ± 2%, higher than that of smdc and c-smdc, respectively. it was concluded that the circulation of alkalinity could remove ph imbalance while the separator could expand the operation period and promote the conversion of organic matter to electricity.

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