Enhancement of Biohydrogen Production via Thermophilic Cell Culture Immobilized on Glass Beads and Raschig Rings of Different Sizes in a Packed Bed Reactor

Pekguzel, E. A.

doi:10.15255/cabeq.2014.2082

Cited by 10 publications

(3 citation statements)

References 23 publications

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“…Better biohydrogen performance was reported using these reactors. For instance, Pekguzel et al [111] maximized biohydrogen production using thermophilic cultures immobilized on raschig rings in a PBR; the biohydrogen production rate was 7-11 times higher compared to suspended cells [111]. Amorim et al [112] reported an enhanced biohydrogen yield of 1.9 mol H 2 /mol glucose and production rate of 2.04 L/h/L at HRT of 2 h in an AFBR.…”

Section: Type Of Bioreactor Configuration During Immobilizationmentioning

confidence: 99%

Microbial cell immobilization in biohydrogen production: a short overview

Sekoai

Awosusi

Yoro

et al. 2017

Critical Reviews in Biotechnology

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The high dependence on fossil fuels has escalated the challenges of greenhouse gas emissions and energy security. Biohydrogen is projected as a future alternative energy as a result of its non-polluting characteristics, high energy content (122 kJ/g), and economic feasibility. However, its industrial production has been hampered by several constraints such as low process yields and the formation of biohydrogen-competing reactions. This necessitates the search for other novel strategies to overcome this problem. Cell immobilization technology has been in existence for many decades and is widely used in various processes such as wastewater treatment, food technology, and pharmaceutical industry. In recent years, this technology has caught the attention of many researchers within the biohydrogen production field owing to its merits such as enhanced process yields, reduced microbial contamination, and improved homogeneity. In addition, the use of immobilization in biohydrogen production prevents washout of microbes, stabilizes the pH of the medium, and extends microbial activity during continuous processes. In this short review, an insight into the potential of cell immobilization is presented. A few immobilization techniques such as entrapment, adsorption, encapsulation, and synthetic polymers are discussed. In addition, the effects of process conditions on the performance of immobilized microbial cells during biohydrogen production are discussed. Finally, the review concludes with suggestions on improvement of cell immobilization technologies in biohydrogen production.

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Section: Type Of Bioreactor Configuration During Immobilizationmentioning

confidence: 99%

Microbial cell immobilization in biohydrogen production: a short overview

Sekoai

Awosusi

Yoro

et al. 2017

Critical Reviews in Biotechnology

View full text Add to dashboard Cite

show abstract

“…Other less-known immobilization carriers are being exploited as well; a recent study by Pekguzel et al [41] compared two different types of support materials, glass beads and raschig rings, on the biohydrogen production performance. Glass beads were shown to be a suitable immobilization matrix as compared to raschig rings.…”

Section: Strategies Used To Improve the Mechanical Stability Of Calcimentioning

confidence: 99%

“…Glass beads were shown to be a suitable immobilization matrix as compared to raschig rings. Thus, a six-fold increase in the biohydrogen production was obtained using glass beads [41]. Utilization of these immobilization matrices could pave a way for biohydrogen process development; however, more studies need to be carried out at a large-scale to fully understand the process dynamics involved during the biohydrogen fermentation process when applying these materials.…”

Section: Strategies Used To Improve the Mechanical Stability Of Calcimentioning

confidence: 99%

Batch Fermentative Biohydrogen Production Process Using Immobilized Anaerobic Sludge from Organic Solid Waste

2016

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This study examined the potential of organic solid waste for biohydrogen production using immobilized anaerobic sludge. Biohydrogen was produced under batch mode at process conditions of 7.9, 30.3 • C and 90 h for pH, temperature and fermentation time, respectively. A maximum biohydrogen fraction of 48.67%, which corresponded to a biohydrogen yield of 215.39 mL H 2 /g Total Volatile Solids (TVS), was achieved. Therefore, the utilization of immobilized cells could pave the way for a large-scale biohydrogen production process.

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