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Investigation of the effect of different crude glycerol components on hydrogen production by Enterobacter aerogenes NRRL B-407

Author

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  • Sarma, Saurabh Jyoti
  • Dhillon, Gurpreet Singh
  • Brar, Satinder Kaur
  • Le Bihan, Yann
  • Buelna, Gerardo
  • Verma, Mausam

Abstract

Crude glycerol (CG) is the main by-product (waste) of biodiesel production (by transesterification of lipids) and by weight it could be as high as 10% (w/w) of the final product. Considering global interest for biodiesel production, there is a need for sustainable management of the waste. In this context, bio-hydrogen production by utilization of CG could be an interesting option. Moreover, hydrogen is considered as the cleanest renewable alternative of fossil fuels. However, CG contains a few impurities, such as methanol, NaCl and soap and their individual and interactive effect on hydrogen production should be investigated. Thus, present study deals with the investigation of the effect of methanol, NaCl and soap on hydrogen production and substrate (glycerol) utilization. Based on the investigation carried out using response surface methodology, it was observed that soap is the most significant factor (p value = 0.0104 < 0.05) to inhibit hydrogen production. Similarly, methanol was also found to have negative effect on hydrogen production in the concentration range (1.3–3.3 g/L) considered. Meanwhile, NaCl (0.15–0.55 g/L) showed positive effect on the process. Overall, presence of different impurities was found to reduce the cumulative H2 production by 21.56–95.31%. Furthermore, based on present observations a novel integrated strategy for soap removal and process pH management has been hypothesized for improved H2 production by CG bioconversion.

Suggested Citation

  • Sarma, Saurabh Jyoti & Dhillon, Gurpreet Singh & Brar, Satinder Kaur & Le Bihan, Yann & Buelna, Gerardo & Verma, Mausam, 2013. "Investigation of the effect of different crude glycerol components on hydrogen production by Enterobacter aerogenes NRRL B-407," Renewable Energy, Elsevier, vol. 60(C), pages 566-571.
  • Handle: RePEc:eee:renene:v:60:y:2013:i:c:p:566-571
    DOI: 10.1016/j.renene.2013.06.007
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    Cited by:

    1. Pachapur, Vinayak Laxman & Sarma, Saurabh Jyoti & Brar, Satinder Kaur & Le Bihan, Yann & Buelna, Gerardo & Verma, Mausam, 2016. "Surfactant mediated enhanced glycerol uptake and hydrogen production from biodiesel waste using co-culture of Enterobacter aerogenes and Clostridium butyricum," Renewable Energy, Elsevier, vol. 95(C), pages 542-551.
    2. Cédric Decarpigny & Abdulhadi Aljawish & Cédric His & Bertrand Fertin & Muriel Bigan & Pascal Dhulster & Michel Millares & Rénato Froidevaux, 2022. "Bioprocesses for the Biodiesel Production from Waste Oils and Valorization of Glycerol," Energies, MDPI, vol. 15(9), pages 1-30, May.
    3. Sarma, Saurabh Jyoti & Das, Ratul Kumar & Brar, Satinder Kaur & Le Bihan, Yann & Buelna, Gerardo & Verma, Mausam & Soccol, Carlos Ricardo, 2014. "Application of magnesium sulfate and its nanoparticles for enhanced lipid production by mixotrophic cultivation of algae using biodiesel waste," Energy, Elsevier, vol. 78(C), pages 16-22.

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