Energetic Valorization of <i>Eichhornia crassipes</i> and <i>Pistia stratiotes</i> by Methane Production in an Anaerobic Co-digestion Process

Pierre Ntakiyiruta; Bi Gouessé Henri Briton; Pierre Claver Mpawenayo; David Nahimana; Christophe Niyungeko; Kouassi Benjamin Yao; Gaspard Ntakimazi

doi:doi:10.11648/j.sjee.20210904.13

Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process

Pierre Ntakiyiruta, Bi Gouessé Henri Briton, Pierre Claver Mpawenayo, David Nahimana, Christophe Niyungeko, Kouassi Benjamin Yao, Gaspard Ntakimazi

Published in Science Journal of Energy Engineering (Volume 9, Issue 4)

Received: 13 October 2021 Accepted: 1 November 2021 Published: 10 November 2021

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Abstract

Eichhornia crassipes and Pistia stratiotes are often used in phytoremediation of wastewater. Nevertheless, these macrophytes must be renewed after use to avoid recontamination of treated wastewater by dead plants. This study aims to produce of energy from a mixture of these two macrophyte es by anaerobic co-digestion in the presence of the activated sludge which acts as an inoculum. The study was carried out using a 4 L digesters batch under mesophilic conditions (35°C). The scenarios 3/1; 2/1 ratios between substrate and inoculum as well as control were used to evaluate the quantity biogas produced over a 25-day period. The pH, NH₄⁺, BOD₅ and COD were monitored to verify the stability of the process. The results of this study show that the pH varies from 6.39 to 7.31 while the NH₄⁺, COD and BOD₅ concentrations vary from 39.6 to 86.4 mg L⁻¹, 1965.8 to 2940.4 mgO₂ L^-1 and 1200 to 1500 mgO₂/L^-1 respectively. The varying ranges of these parameters have no effect on methanogenesis. When the two macrophytes were mixed in a 3/1 ratio, a volume of 13797 mL of biogas was produced with a methane content of 70.53%, a value within the range of a good quality of biogas.

Published in	Science Journal of Energy Engineering (Volume 9, Issue 4)
DOI	10.11648/j.sjee.20210904.13
Page(s)	59-69
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), 2024. Published by Science Publishing Group

Keywords

Substrate, Inoculum, Biogas, Methane, Macrophytes, Anaerobic Digestion

References

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APA Style

Pierre Ntakiyiruta, Bi Gouessé Henri Briton, Pierre Claver Mpawenayo, David Nahimana, Christophe Niyungeko, et al. (2021). Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process. Science Journal of Energy Engineering, 9(4), 59-69. https://doi.org/10.11648/j.sjee.20210904.13

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ACS Style

Pierre Ntakiyiruta; Bi Gouessé Henri Briton; Pierre Claver Mpawenayo; David Nahimana; Christophe Niyungeko, et al. Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process. Sci. J. Energy Eng. 2021, 9(4), 59-69. doi: 10.11648/j.sjee.20210904.13

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AMA Style

Pierre Ntakiyiruta, Bi Gouessé Henri Briton, Pierre Claver Mpawenayo, David Nahimana, Christophe Niyungeko, et al. Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process. Sci J Energy Eng. 2021;9(4):59-69. doi: 10.11648/j.sjee.20210904.13

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@article{10.11648/j.sjee.20210904.13,
  author = {Pierre Ntakiyiruta and Bi Gouessé Henri Briton and Pierre Claver Mpawenayo and David Nahimana and Christophe Niyungeko and Kouassi Benjamin Yao and Gaspard Ntakimazi},
  title = {Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process},
  journal = {Science Journal of Energy Engineering},
  volume = {9},
  number = {4},
  pages = {59-69},
  doi = {10.11648/j.sjee.20210904.13},
  url = {https://doi.org/10.11648/j.sjee.20210904.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20210904.13},
  abstract = {Eichhornia crassipes and Pistia stratiotes are often used in phytoremediation of wastewater. Nevertheless, these macrophytes must be renewed after use to avoid recontamination of treated wastewater by dead plants. This study aims to produce of energy from a mixture of these two macrophyte es by anaerobic co-digestion in the presence of the activated sludge which acts as an inoculum. The study was carried out using a 4 L digesters batch under mesophilic conditions (35°C). The scenarios 3/1; 2/1 ratios between substrate and inoculum as well as control were used to evaluate the quantity biogas produced over a 25-day period. The pH, NH4+, BOD5 and COD were monitored to verify the stability of the process. The results of this study show that the pH varies from 6.39 to 7.31 while the NH4+, COD and BOD5 concentrations vary from 39.6 to 86.4 mg L−1, 1965.8 to 2940.4 mgO2 L-1 and 1200 to 1500 mgO2/L-1 respectively. The varying ranges of these parameters have no effect on methanogenesis. When the two macrophytes were mixed in a 3/1 ratio, a volume of 13797 mL of biogas was produced with a methane content of 70.53%, a value within the range of a good quality of biogas.},
 year = {2021}
}

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TY  - JOUR
T1  - Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process
AU  - Pierre Ntakiyiruta
AU  - Bi Gouessé Henri Briton
AU  - Pierre Claver Mpawenayo
AU  - David Nahimana
AU  - Christophe Niyungeko
AU  - Kouassi Benjamin Yao
AU  - Gaspard Ntakimazi
Y1  - 2021/11/10
PY  - 2021
N1  - https://doi.org/10.11648/j.sjee.20210904.13
DO  - 10.11648/j.sjee.20210904.13
T2  - Science Journal of Energy Engineering
JF  - Science Journal of Energy Engineering
JO  - Science Journal of Energy Engineering
SP  - 59
EP  - 69
PB  - Science Publishing Group
SN  - 2376-8126
UR  - https://doi.org/10.11648/j.sjee.20210904.13
AB  - Eichhornia crassipes and Pistia stratiotes are often used in phytoremediation of wastewater. Nevertheless, these macrophytes must be renewed after use to avoid recontamination of treated wastewater by dead plants. This study aims to produce of energy from a mixture of these two macrophyte es by anaerobic co-digestion in the presence of the activated sludge which acts as an inoculum. The study was carried out using a 4 L digesters batch under mesophilic conditions (35°C). The scenarios 3/1; 2/1 ratios between substrate and inoculum as well as control were used to evaluate the quantity biogas produced over a 25-day period. The pH, NH4+, BOD5 and COD were monitored to verify the stability of the process. The results of this study show that the pH varies from 6.39 to 7.31 while the NH4+, COD and BOD5 concentrations vary from 39.6 to 86.4 mg L−1, 1965.8 to 2940.4 mgO2 L-1 and 1200 to 1500 mgO2/L-1 respectively. The varying ranges of these parameters have no effect on methanogenesis. When the two macrophytes were mixed in a 3/1 ratio, a volume of 13797 mL of biogas was produced with a methane content of 70.53%, a value within the range of a good quality of biogas.
VL  - 9
IS  - 4
ER  -

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Author Information

Pierre Ntakiyiruta

Laboratory of Industrial Processes of Synthesis, Environment and New Energies (LAPISEN), Félix Houphou?t Boigny National Polytechnic Institute, Yamoussoukro, Ivory Coast
Bi Gouessé Henri Briton

Laboratory of Industrial Processes of Synthesis, Environment and New Energies (LAPISEN), Félix Houphou?t Boigny National Polytechnic Institute, Yamoussoukro, Ivory Coast
Pierre Claver Mpawenayo

Center for Research in Natural Sciences and Environment (CRSNE), University of Burundi, Bujumbura, Burundi
David Nahimana

Center for Research in Natural Sciences and Environment (CRSNE), University of Burundi, Bujumbura, Burundi
Christophe Niyungeko

Center for Research in Natural Sciences and Environment (CRSNE), University of Burundi, Bujumbura, Burundi
Kouassi Benjamin Yao

Laboratory of Industrial Processes of Synthesis, Environment and New Energies (LAPISEN), Félix Houphou?t Boigny National Polytechnic Institute, Yamoussoukro, Ivory Coast
Gaspard Ntakimazi

Center for Research in Natural Sciences and Environment (CRSNE), University of Burundi, Bujumbura, Burundi

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Pierre Ntakiyiruta, Bi Gouessé Henri Briton, Pierre Claver Mpawenayo, David Nahimana, Christophe Niyungeko, et al. (2021). Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process. Science Journal of Energy Engineering, 9(4), 59-69. https://doi.org/10.11648/j.sjee.20210904.13

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Pierre Ntakiyiruta; Bi Gouessé Henri Briton; Pierre Claver Mpawenayo; David Nahimana; Christophe Niyungeko, et al. Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process. Sci. J. Energy Eng. 2021, 9(4), 59-69. doi: 10.11648/j.sjee.20210904.13

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AMA Style

Pierre Ntakiyiruta, Bi Gouessé Henri Briton, Pierre Claver Mpawenayo, David Nahimana, Christophe Niyungeko, et al. Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process. Sci J Energy Eng. 2021;9(4):59-69. doi: 10.11648/j.sjee.20210904.13

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@article{10.11648/j.sjee.20210904.13,
  author = {Pierre Ntakiyiruta and Bi Gouessé Henri Briton and Pierre Claver Mpawenayo and David Nahimana and Christophe Niyungeko and Kouassi Benjamin Yao and Gaspard Ntakimazi},
  title = {Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process},
  journal = {Science Journal of Energy Engineering},
  volume = {9},
  number = {4},
  pages = {59-69},
  doi = {10.11648/j.sjee.20210904.13},
  url = {https://doi.org/10.11648/j.sjee.20210904.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sjee.20210904.13},
  abstract = {Eichhornia crassipes and Pistia stratiotes are often used in phytoremediation of wastewater. Nevertheless, these macrophytes must be renewed after use to avoid recontamination of treated wastewater by dead plants. This study aims to produce of energy from a mixture of these two macrophyte es by anaerobic co-digestion in the presence of the activated sludge which acts as an inoculum. The study was carried out using a 4 L digesters batch under mesophilic conditions (35°C). The scenarios 3/1; 2/1 ratios between substrate and inoculum as well as control were used to evaluate the quantity biogas produced over a 25-day period. The pH, NH4+, BOD5 and COD were monitored to verify the stability of the process. The results of this study show that the pH varies from 6.39 to 7.31 while the NH4+, COD and BOD5 concentrations vary from 39.6 to 86.4 mg L−1, 1965.8 to 2940.4 mgO2 L-1 and 1200 to 1500 mgO2/L-1 respectively. The varying ranges of these parameters have no effect on methanogenesis. When the two macrophytes were mixed in a 3/1 ratio, a volume of 13797 mL of biogas was produced with a methane content of 70.53%, a value within the range of a good quality of biogas.},
 year = {2021}
}

Copy | Download

TY  - JOUR
T1  - Energetic Valorization of Eichhornia crassipes and Pistia stratiotes by Methane Production in an Anaerobic Co-digestion Process
AU  - Pierre Ntakiyiruta
AU  - Bi Gouessé Henri Briton
AU  - Pierre Claver Mpawenayo
AU  - David Nahimana
AU  - Christophe Niyungeko
AU  - Kouassi Benjamin Yao
AU  - Gaspard Ntakimazi
Y1  - 2021/11/10
PY  - 2021
N1  - https://doi.org/10.11648/j.sjee.20210904.13
DO  - 10.11648/j.sjee.20210904.13
T2  - Science Journal of Energy Engineering
JF  - Science Journal of Energy Engineering
JO  - Science Journal of Energy Engineering
SP  - 59
EP  - 69
PB  - Science Publishing Group
SN  - 2376-8126
UR  - https://doi.org/10.11648/j.sjee.20210904.13
AB  - Eichhornia crassipes and Pistia stratiotes are often used in phytoremediation of wastewater. Nevertheless, these macrophytes must be renewed after use to avoid recontamination of treated wastewater by dead plants. This study aims to produce of energy from a mixture of these two macrophyte es by anaerobic co-digestion in the presence of the activated sludge which acts as an inoculum. The study was carried out using a 4 L digesters batch under mesophilic conditions (35°C). The scenarios 3/1; 2/1 ratios between substrate and inoculum as well as control were used to evaluate the quantity biogas produced over a 25-day period. The pH, NH4+, BOD5 and COD were monitored to verify the stability of the process. The results of this study show that the pH varies from 6.39 to 7.31 while the NH4+, COD and BOD5 concentrations vary from 39.6 to 86.4 mg L−1, 1965.8 to 2940.4 mgO2 L-1 and 1200 to 1500 mgO2/L-1 respectively. The varying ranges of these parameters have no effect on methanogenesis. When the two macrophytes were mixed in a 3/1 ratio, a volume of 13797 mL of biogas was produced with a methane content of 70.53%, a value within the range of a good quality of biogas.
VL  - 9
IS  - 4
ER  -

Copy | Download