Biohydrogen production with utilisation of magnetite nanoparticles embedded in granular activated carbon from coconut shell
This study aims to utilize magnetite nanoparticles (MNP) embedded in granular activated carbon (GAC) originating from coconut shells as microbial support carriers in thermophilic biohydrogen production. MNP can facilitate intracellular electron transportation while providing essential nutrition f...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | en en en |
| Published: |
Pergamon-Elsevier Science Ltd
2023
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/107821/7/107821_Biohydrogen%20production%20with%20utilisation%20of%20magnetite%20nanoparticles%20embedded%20in%20granular.pdf http://irep.iium.edu.my/107821/13/107821_Biohydrogen%20production%20with%20utilisation%20of%20magnetite%20nanoparticles%20embedded%20in%20granular_SCOPUS.pdf http://irep.iium.edu.my/107821/19/107821_Biohydrogen%20production%20with%20utilisation%20of%20magnetite%20nanoparticles%20embedded%20in%20granular_WOS.pdf http://irep.iium.edu.my/107821/ https://www.sciencedirect.com/science/article/abs/pii/S0360319922057901?via%3Dihub |
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| Summary: | This study aims to utilize magnetite nanoparticles (MNP) embedded in granular activated
carbon (GAC) originating from coconut shells as microbial support carriers in thermophilic
biohydrogen production. MNP can facilitate intracellular electron transportation while
providing essential nutrition for microbial growth. Response Surface Methodology (RSM)
with a Central Composite Design was used to investigate the simultaneous effect of three
variables; Ni:Fe (0.25e0.80), MNP:GAC (0.01e0.03) and type of GAC (GAC-O or GAC-C) on the
hydrogen productivity rate (HPR). Biohydrogen content in the biogas to range from 22.25 to 64.71%. The quadratic model was well fitted (R-squared>0.80) with a confidence level
higher than 90%. The optimum magnetite GAC was GAC-O as the preferred GAC at Ni:Fe
(0.53) and MNP:GAC (0.02), with HPR of 20.33 ± 0.32 ml H2/L.h. Magnetite GAC exhibited a
better biohydrogen productivity rate by 63.99% compared to non-magnetite GAC. The
developed magnetite GAC shown a high potential to improve biohydrogen production. |
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