Enhanced dark fermentative hydrogen production by zero-valent iron activated carbon micro-electrolysis. (28th September 2015)

• Record Type: Journal Article
• Authors: Zhang, Lei; Zhang, Lixia; Li, Daping
• Is Part Of: International journal of hydrogen energy. Volume 40:Number 36(2015)
• Page Start: 12201
• Page End: 12208
• Publication Date: 2015-09-28
• Subjects: Hydrogen as fuel -- Periodicals; Hydrogène (Combustible) -- Périodiques; Hydrogen as fuel; Periodicals; 665.81
• DOI: 10.1016/j.ijhydene.2015.07.106
• Languages: English
• ISSNs: 0360-3199

Abstract

<abstract xml:lang="en" abstract-type="author" id="abs0010"> <title id="sectitle0010">Abstract</title> <sec> <p id="abspara0010">This paper investigated the enhancement effect of zero-valent iron activated carbon (ZVI-AC) micro-electrolysis system on fermentative hydrogen production from glucose by a mixed bacterial consortium. The results showed that addition of ZVI obtained 38.2％ more hydrogen yield, and ZVI-AC micro-electrolysis could further enhance hydrogen yield (improving rate 50.2％). The ZVI-AC also got the highest hydrogen production potential and maximum hydrogen production rate (429 ± 6.1 mL and 11.50 ± 0.74 mL/h respectively). The concentration of ferrous ion, final oxidation-reduction potential and pH were measured to understand the mechanism of enhanced hydrogen production by ZVI-AC micro-electrolysis. We concluded that ZVI-AC micro-electrolysis provided a favorable environment which was proposed to be responsible for the improvement of fermentative hydrogen production. In addition, high-throughput sequencing proved that ZVI-AC micro-electrolysis could enhance diversity of microbial community and enrich <italic>Clostridium</italic> spp. for hydrogen production.</p> </sec> </abstract>