A novel anaerobic down-flow structured-bed reactor for long-term stable H2 energy production from wastewater
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- 作者：Mé ; lida del Pilar Anzola-Rojas and Marcelo Zaiat
- 关键词：biohydrogen ; anaerobic fixed-bed reactor ; natural inoculum ; biomass accumulation ; specific organic load ; homoacetogenesis
- 刊名：Journal of Chemical Technology & Biotechnology
- 出版年：2016
- 出版时间：May 2016
- 年：2016
- 卷：91
- 期：5
- 页码：1551-1561
- 全文大小：614K
- ISSN：1097-4660
文摘
Anaerobic, upflow fixed-bed reactors have been considered suitable for the production of H2 from wastewater because, in contrast to completely mixed reactors, they avoid the washout of H2-producing microorganisms. However, the excessive growth and accumulation of biomass on the bed are unfavorable and cause a drastic drop in biogas production, even though the fermentative process in the liquid medium continues unimpeded. This paper proposes a novel anaerobic fixed-bed reactor configuration intended to control the accumulation of biomass by means of structuring the bed longitudinally and inverting the flow (down-flow).