An improved method of hydrogen production as electron donor for anaerobic bioremediation.
作者： Xi-Hui Zhang , Guy W. Sewell , Shui-Yue Cui
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摘要: This paper investigated an improved electrochemical approach that is able to provide hydrogen for anaerobic bioremediation of chloroethenes in subsurface. Hydrogen the ultimate electron donor biodechlorination processes. In experiments, iron wire was used as electrodes, bacteria enrichment collected from a site contaminated with test microbes, perchloroethylene (PCE) model chloroethene. Experiments were conducted by switching polarities electrodes periodically and supplying electrical power intermittent way. The results showed bioreactor switched 1 time/10 min operated only 8 h day produce more than 24 at 0.4 V without polarity switching, stimulating microbial growth effectively. operation also resulted periodical release overpotentials built up on electrode surfaces, thus prevented charged ions particles attaching electrodes. Th...
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