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Influence of Unlike Proportions of Preliminary and Activated Sludge on Methane Generation During Anaerobic Co-digestion

Received: 20 April 2021     Accepted: 7 May 2021     Published: 27 May 2021
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Abstract

The aim of this study was to look into methane generation using different amounts of initial sludge (IS) and activated sludge (AS) for anaerobic transformation. To compare the best combination in analysis with a benchmark combination, C0, three experimental ratios (IS: AS) (v/v) were used: C1 (60: 40), C2 (80: 20), and C3 (100: 00). (40: 60). Anaerobic digestion was carried out at 37°C in mesophilic conditions with a 12 day HRT and a loading rate of 1.63 0.06 kg TVS/m3 day. In comparison to C0, biogas generation for ratios C1 and C2 increased from 25% to 38%. The maximum amount generated by combination C3, which was 52.44 percent more than that of C0, showed a clear improvement in specific methane generation. C1, which involves using less initial sludge and increasing activated sludge condensing, is the most realistic combination to use on a large scale. IS has a C/N proportion that is 2 times more than AS because of the higher organic compounds in IS. The obtained proportion of IS that ought to be added to AS to achieve the greatest methane production were 60 and 80% (combination C1 and C2), separately than the reference conditions, C0. Nevertheless, the influent ought to be deliberately arranged with a gradual increment to the ideal influent proportion to acclimatization of the microorganisms and avoid over-loading. 3.72 years are found to be the time needed to recover expenses.

Published in American Journal of Quantum Chemistry and Molecular Spectroscopy (Volume 5, Issue 1)
DOI 10.11648/j.ajqcms.20210501.12
Page(s) 10-15
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Methane, Anaerobic Co-digestion, IS: AS Ratio, Sludge

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Cite This Article
  • APA Style

    Md. Nurul Islam Siddique, Mohd Zamri Bin Ibrahim, Mohd Mokhlesur Rahman. (2021). Influence of Unlike Proportions of Preliminary and Activated Sludge on Methane Generation During Anaerobic Co-digestion. American Journal of Quantum Chemistry and Molecular Spectroscopy, 5(1), 10-15. https://doi.org/10.11648/j.ajqcms.20210501.12

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    ACS Style

    Md. Nurul Islam Siddique; Mohd Zamri Bin Ibrahim; Mohd Mokhlesur Rahman. Influence of Unlike Proportions of Preliminary and Activated Sludge on Methane Generation During Anaerobic Co-digestion. Am. J. Quantum Chem. Mol. Spectrosc. 2021, 5(1), 10-15. doi: 10.11648/j.ajqcms.20210501.12

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    AMA Style

    Md. Nurul Islam Siddique, Mohd Zamri Bin Ibrahim, Mohd Mokhlesur Rahman. Influence of Unlike Proportions of Preliminary and Activated Sludge on Methane Generation During Anaerobic Co-digestion. Am J Quantum Chem Mol Spectrosc. 2021;5(1):10-15. doi: 10.11648/j.ajqcms.20210501.12

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  • @article{10.11648/j.ajqcms.20210501.12,
      author = {Md. Nurul Islam Siddique and Mohd Zamri Bin Ibrahim and Mohd Mokhlesur Rahman},
      title = {Influence of Unlike Proportions of Preliminary and Activated Sludge on Methane Generation During Anaerobic Co-digestion},
      journal = {American Journal of Quantum Chemistry and Molecular Spectroscopy},
      volume = {5},
      number = {1},
      pages = {10-15},
      doi = {10.11648/j.ajqcms.20210501.12},
      url = {https://doi.org/10.11648/j.ajqcms.20210501.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajqcms.20210501.12},
      abstract = {The aim of this study was to look into methane generation using different amounts of initial sludge (IS) and activated sludge (AS) for anaerobic transformation. To compare the best combination in analysis with a benchmark combination, C0, three experimental ratios (IS: AS) (v/v) were used: C1 (60: 40), C2 (80: 20), and C3 (100: 00). (40: 60). Anaerobic digestion was carried out at 37°C in mesophilic conditions with a 12 day HRT and a loading rate of 1.63 0.06 kg TVS/m3 day. In comparison to C0, biogas generation for ratios C1 and C2 increased from 25% to 38%. The maximum amount generated by combination C3, which was 52.44 percent more than that of C0, showed a clear improvement in specific methane generation. C1, which involves using less initial sludge and increasing activated sludge condensing, is the most realistic combination to use on a large scale. IS has a C/N proportion that is 2 times more than AS because of the higher organic compounds in IS. The obtained proportion of IS that ought to be added to AS to achieve the greatest methane production were 60 and 80% (combination C1 and C2), separately than the reference conditions, C0. Nevertheless, the influent ought to be deliberately arranged with a gradual increment to the ideal influent proportion to acclimatization of the microorganisms and avoid over-loading. 3.72 years are found to be the time needed to recover expenses.},
     year = {2021}
    }
    

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  • TY  - JOUR
    T1  - Influence of Unlike Proportions of Preliminary and Activated Sludge on Methane Generation During Anaerobic Co-digestion
    AU  - Md. Nurul Islam Siddique
    AU  - Mohd Zamri Bin Ibrahim
    AU  - Mohd Mokhlesur Rahman
    Y1  - 2021/05/27
    PY  - 2021
    N1  - https://doi.org/10.11648/j.ajqcms.20210501.12
    DO  - 10.11648/j.ajqcms.20210501.12
    T2  - American Journal of Quantum Chemistry and Molecular Spectroscopy
    JF  - American Journal of Quantum Chemistry and Molecular Spectroscopy
    JO  - American Journal of Quantum Chemistry and Molecular Spectroscopy
    SP  - 10
    EP  - 15
    PB  - Science Publishing Group
    SN  - 2994-7308
    UR  - https://doi.org/10.11648/j.ajqcms.20210501.12
    AB  - The aim of this study was to look into methane generation using different amounts of initial sludge (IS) and activated sludge (AS) for anaerobic transformation. To compare the best combination in analysis with a benchmark combination, C0, three experimental ratios (IS: AS) (v/v) were used: C1 (60: 40), C2 (80: 20), and C3 (100: 00). (40: 60). Anaerobic digestion was carried out at 37°C in mesophilic conditions with a 12 day HRT and a loading rate of 1.63 0.06 kg TVS/m3 day. In comparison to C0, biogas generation for ratios C1 and C2 increased from 25% to 38%. The maximum amount generated by combination C3, which was 52.44 percent more than that of C0, showed a clear improvement in specific methane generation. C1, which involves using less initial sludge and increasing activated sludge condensing, is the most realistic combination to use on a large scale. IS has a C/N proportion that is 2 times more than AS because of the higher organic compounds in IS. The obtained proportion of IS that ought to be added to AS to achieve the greatest methane production were 60 and 80% (combination C1 and C2), separately than the reference conditions, C0. Nevertheless, the influent ought to be deliberately arranged with a gradual increment to the ideal influent proportion to acclimatization of the microorganisms and avoid over-loading. 3.72 years are found to be the time needed to recover expenses.
    VL  - 5
    IS  - 1
    ER  - 

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Author Information
  • Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu (UMT), Terengganu, Malaysia

  • Faculty of Ocean Engineering Technology and Informatics, University Malaysia Terengganu (UMT), Terengganu, Malaysia

  • East Coast Environmental Research Institute, Universiti Sultan Zainal Abidin, Terengganu, Malaysia

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