The application of an innovative continuous multiple tube reactor as a strategy to control the specific organic loading rate for biohydrogen production by dark fermentation

Bioresource Technology
Simone D GomesM Zaiat

Abstract

Biohydrogen production in fixed-bed reactors often leads to unstable and decreasing patterns because the excessive accumulation of biomass in the bed negatively affects the specific organic loading rate (SOLR) applied to the reactor. In this context, an innovative reactor configuration, i.e., the continuous multiple tube reactor (CMTR), was assessed in an attempt to better control the SOLR for biohydrogen production. The CMTR provides a continuous discharge of biomass, preventing the accumulation of solids in the long-term. Sucrose was used as the carbon source and mesophilic temperature conditions (25°C) were applied in three continuous assays. The reactor showed better performance when support material was placed in the outlet chamber to enhance biomass retention within the reactor. Although the SOLR could not be effectively controlled, reaching values usually higher than 10gsucroseg(-1)VSSd(-1), the volumetric hydrogen production and molar hydrogen production rates peaked, respectively, at 1470mLH2L(-1)d(-1) and 45mmolH2d(-1), indicating that the CMTR was a suitable configuration for biohydrogen production.

References

Sep 1, 2005·Water Research·Steven W Van Ginkel, Bruce Logan
May 29, 2014·Bioresource Technology·Antônio Djalma Nunes FerrazGeorge Nakhla

❮ Previous
Next ❯

Citations

Jan 23, 2016·Bioresource Technology·Iulian Zoltan BoboescuGergely Maróti
Aug 27, 2016·Bioresource Technology·Gopalakrishnan KumarJo-Shu Chang
Dec 6, 2020·Bioresource Technology·Shikha DahiyaS Venkata Mohan

❮ Previous
Next ❯

Related Concepts

Related Feeds

Biofuels (ASM)

Biofuels are produced through contemporary processes from biomass rather than geological processes involved in fossil fuel formation. Examples include biodiesel, green diesel, biogas, etc. Discover the latest research on biofuels in this feed.