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), 2021. Published by Science Publishing Group

Keywords

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

References

[1]	T. R. Ayodele, A. S. O. Ogunjuyigbe, et M. A. Alao, «Life cycle assessment of waste-to-energy (WtE) technologies for electricity generation using municipal solid waste in Nigeria», Applied Energy, vol. 201, p. 200-218, sept. 2017, doi: 10.1016/j.apenergy.2017.05.097.
[2]	O. Almoustapha et J. Millogo-Rasolodimby, «Production de biogaz et de compost à partir de eichhornia crassipes, (mart) solms-laub (pontederiaceae) pour un développement durable en Afrique sahélienne», VertigO - la revue électronique en sciences de l’environnement, n° Volume 7 Numéro 2, Art. n° Volume 7 Numéro 2, sept. 2006, doi: 10.4000/vertigo.2221.
[3]	K. A. Rodrigue, K. Essi, K. M. Cyril, et T. Albert, «Estimation of Methane Emission from Kossihouen Sanitary Landfill and Its Electricity Generation Potential (Côte d’Ivoire)», Journal of Power and Energy Engineering, vol. 06, n° 07, p. 22-31, 2018, doi: 10.4236/jpee.2018.67002.
[4]	R. Girault, P. Peu, F. Béline, T. Lendormi, et S. Guillaume, «Caractéristiques des substrats et interactions dans les filières de co-digestion: cas particulier des co-substrats d’origine agro-industrielle», Sciences Eaux Territoires, vol. Numéro 12, n° 3, p. 44-53, oct. 2013, Consulté le: mai 11, 2020. [En ligne]. Disponible sur: https://www.cairn.info/revue-sciences-eaux-et-territoires-2013-3-page-44.htm.
[5]	B. Benyahia, «Modélisation et observation des bioprocédés à membranes: application à la digestion anaérobie», thesis, Montpellier 2, France, 2012. Consulté le: mai 06, 2020. [En ligne]. Disponible sur: http://www.theses.fr/2012MON20035
[6]	A. C. Elisabeth, «Rôle des gaz dissous dans la digestion anaérobie par voie sèche de déchets ligno-cellulosiques», phdthesis, Université Montpellier, 2015. Consulté le: juill. 20, 2020. [En ligne]. Disponible sur: https://tel.archives-ouvertes.fr/tel-02060619.
[7]	P. Doraisamy, N. B. Nandakumar, M. Maheswari, et M. Selvamurugan, «Comparative performance of anaerobic reactors for treatment of sago industry wastewater», Clean Techn Environ Policy, vol. 15, n° 2, p. 391-394, avr. 2013, doi: 10.1007/s10098-012-0506-1.
[8]	C. A. Dedjiho et al., «Influence de l’état d’eutrophisation de la lagune de Gbèzoumè (Ouidah) sur sa faune aquatique», International Journal of Biological and Chemical Sciences, vol. 7, n° 5, Art. n° 5, 2013, doi: 10.4314/ijbcs.v7i5.24.
[9]	F. Adjahatode, A. Kobede, M. Daouda, A. Hodonou, B. Guehou, et M. Aina, «Valorisation de la jacinthe d’eau (Eichhornia crassipes) par la production de biocarburant: expérimentation», Déchets, sciences et techniques, janv. 2016, doi: 10.4267/dechets-sciences-techniques.3445.
[10]	R. Bodo, R. Hausler, et A. Azzouz, «Approche multicritère pour la sélection de plantes aquatiques en vue d’une exploitation rationnelle», rseau, vol. 19, n° 3, p. 181-197, 2006, doi: https://doi.org/10.7202/013537ar.
[11]	P. Gupta, S. Roy, et A. Mahindrakar, «Treatment of Water Using Water Hyacinth, Water Lettuce and Vetiver Grass - A Review», Resources and Environment, vol. 2, p. 202-215, sept. 2012, doi: 10.5923/j.re.20120205.04.
[12]	H. Qin et al., «Site test of phytoremediation of an open pond contaminated with domestic sewage using water hyacinth and water lettuce», Ecological Engineering, vol. 95, p. 753-762, oct. 2016, doi: 10.1016/j.ecoleng.2016.07.022.
[13]	S. E. R. Mahunon et al., «Optimization process of organic matter removal from wastewater by using Eichhornia crassipes», Environ Sci Pollut Res, vol. 25, n° 29, p. 29219-29226, oct. 2018, doi: 10.1007/s11356-018-2771-y.
[14]	P. Ntakiyiruta, G. Nsavyimana, B. G. H. Briton, A. Kopoin, D. Nahimana, et G. Ntakimazi, «Actions combinées de Eichhornia crassipes et Pistia stratiotes pour traitement tertiaire de l’effluent des bassins facultatifs de la station d’épuration de Buterere, Burundi», Interanational jouranal of Biological and Chemical Sciences, vol. 14, n° 7, p. 2463-2475, sept. 2020, doi: https://dx.doi.org/10.4314/ijbcs.v14i7.8.
[15]	P. Ntakiyiruta et al., «Optimization of the phytoremediation conditions of wastewater in post-treatment by Eichhornia crassipes and Pistia stratiotes: kinetic model for pollutants removal», null, vol. 41, n° 28, p. 1-26, nov. 2020, doi: 10.1080/09593330.2020.1852445.
[16]	L. R. Kumar, S. K. Yellapu, X. Zhang, et R. D. Tyagi, «Energy balance for biodiesel production processes using microbial oil and scum», Bioresource Technology, vol. 272, p. 379-388, janv. 2019, doi: 10.1016/j.biortech.2018.10.071.
[17]	K. M. Ostrem, «GREENING WASTE: ANAEROBIC DIGESTION FOR TREATING THE ORGANIC FRACTION OF MUNICIPAL SOLID WASTES», Columbia University, Columbia, 2004.
[18]	P. Y. Ancion, H. Thi Thai Hoa, P. Ton That, T. Pham Khanh, C. N. Chiang, et J. E. Dufey, «Utilisation agricole de plantes aquatiques, notamment en tant qu’amendement des sols, dans la province de Thua Thien Hue, Centre Vietnam. 1. Inventaire, abondance et caractérisation chimique des plantes aquatiques disponibles localement», vol. 3, n° 27, p. 144-151, 2009.
[19]	G. Nsavyimana, «Modélisation des processus physiques et biologiques dans des fosses septiques et voies de valorisations des boues de Vidange: Application à Bujumbura-Burundi.», Université de Liège, Faculté des Sciences Unité «Assainissement et Environnement», 2015.
[20]	X. Zhang, S. Yan, R. D. Tyagi, R. Y. Surampalli, et J. R. Valéro, «Ultrasonication aided in-situ transesterification of microbial lipids to biodiesel», Bioresource Technology, vol. 169, p. 175-180, oct. 2014, doi: 10.1016/j.biortech.2014.06.108.
[21]	K. E. Adou, O. A. Alle, A. R. Kouakou, K. Adouby, P. Drogui, et R. D. Tyagi, «Anaerobic mono-digestion of wastewater from the main slaughterhouse in Yamoussoukro (Côte d’Ivoire): Evaluation of biogas potential and removal of organic pollution», Journal of Environmental Chemical Engineering, vol. 8, n° 3, p. 103770, juin 2020, doi: 10.1016/j.jece.2020.103770.
[22]	O. Yenigün et B. Demirel, «Ammonia inhibition in anaerobic digestion: A review», Process Biochemistry, vol. 48, n° 5, p. 901-911, mai 2013, doi: 10.1016/j.procbio.2013.04.012.
[23]	M. Kawai, N. Nagao, N. Kawasaki, A. Imai, et T. Toda, «Improvement of COD removal by controlling the substrate degradability during the anaerobic digestion of recalcitrant wastewater», J Environ Manage, vol. 181, p. 838-846, oct. 2016, doi: 10.1016/j.jenvman.2016.06.057.
[24]	N. D. Coulibaly, M. Kone, T. Kone, T. Hilairekouakou, et Y. J. Kouadio, «Influence des conditions pédo-climatiques sur les composantes du rendement de Jatropha curcas (L) dans les zones Nord de savane et Sud forestière de la Côte d’Ivoire», International Journal of Biological and Chemical Sciences, vol. 9, n° 5, p. 2346-2361-2361, janv. 2015, doi: 10.4314/ijbcs.v9i5.8.
[25]	E. Jardé, «Composition organique de boues résiduaires de stations d’épuration lorraines: Caractérisation moléculaire et effets de la biodégradation», phdthesis, Université Henri Poincaré - Nancy I, 2002. Consulté le: mai 31, 2021. [En ligne]. Disponible sur: https://tel.archives-ouvertes.fr/tel-00007882.
[26]	D. Pandolfi, «Caractérisation morphologique et physiologique de la biomasse des boues activées par analyse d’images:», phdthesis, Institut National Polytechnique de Lorraine, 2006. Consulté le: mai 31, 2021. [En ligne]. Disponible sur: https://hal.univ-lorraine.fr/tel-01752507.
[27]	S. Rezania et al., «Evaluation of water hyacinth (Eichhornia crassipes) as a potential raw material source for briquette productio», Energy, vol. 111, p. 768-773, sept. 2016, doi: 10.1016/j.energy.2016.06.026.
[28]	P. Ancion, H. Thi Thai Hoa, P. That, T. Khanh, C. Chiang, et J. Dufey, «Utilisation agricole de plantes aquatiques, notamment en tant qu’amendement des sols, dans la province de Thua Thien Hue, Centre Vietnam. 1. Inventaire, abondance et caractérisation chimique des plantes aquatiques disponibles localement», Tropicultura, vol. 27, janv. 2009.
[29]	J.-R. B. Angeli, «Etude de faisabilité de la micro-méthanisation par co-digestion à l’échelle des quartiers», phdthesis, Ecole nationale supérieure Mines-Télécom Atlantique, 2019. Consulté le: févr. 21, 2021. [En ligne]. Disponible sur: https://tel.archives-ouvertes.fr/tel-02118401.
[30]	S. Kalloum, M. Khelafi, et M. Djaafri, «Etude de l’influence du pH sur la production du biogaz à partir des déchets ménagers», Revue des Energies Renouvelables, vol. 10, n° 4, p. 539-543, 2007.
[31]	M. R. Haider, null Zeshan, S. Yousaf, R. N. Malik, et C. Visvanathan, «Effect of mixing ratio of food waste and rice husk co-digestion and substrate to inoculum ratio on biogas production», Bioresour Technol, vol. 190, p. 451-457, août 2015, doi: 10.1016/j.biortech.2015.02.105.
[32]	T. Ahmed, M. Khelafi, et K. Kaidi, «Production de biogaz à partir du déchet de la pomme de terre», Hôtel Laïco Hammamet Tunisie, mai 03, 2016.
[33]	J. Aoun et D. Bouaoun, «Etude des paramètres physico-chimiques de la biométhanisation des ordures ménagères», Déchets, sciences et techniques, mars 2015, doi: 10.4267/dechets-sciences-techniques.1723.
[34]	Y. M’Sadak et A. B. M’Barek, «Characterization of co-products of the pilot digesters to animal biomass in Tunisia», Journal of Fundamental and Applied Sciences, vol. 7, n° 2, Art. n° 2, août 2015, doi: 10.4314/jfas.v7i2.4.
[35]	T. Forster-Carneiro, M. Pérez, et L. I. Romero, «Influence of total solid and inoculum contents on performance of anaerobic reactors treating food waste», Bioresour Technol, vol. 99, n° 15, p. 6994-7002, oct. 2008, doi: 10.1016/j.biortech.2008.01.018.
[36]	E. Cazier, «IMPACT OF DISSOLVED GAS ON DRY ANAEROBIC DIGESTION OF LIGNOCELLULOSIC RESIDUES», phdthesis, Université de Montpellier 2, 2015. Consulté le: mai 06, 2020. [En ligne]. Disponible sur: https://tel.archives-ouvertes.fr/tel-01404094.
[37]	O. Almoustapha, S. Kenfack, et J. Millogo-Rasolodimby, «Biogas production using water hyacinths to meet collective energy needs in a Sahelian country», Field Actions Science Reports, vol. 2, janv. 2009, doi: 10.5194/facts-2-27-2009.
[38]	V. Kumar, J. Singh, V. V. Pathak, S. Ahmad, et R. Kothari, «Experimental and kinetics study for phytoremediation of sugar mill effluent using water lettuce (Pistia stratiotes L.) and its end use for biogas production», 3 Biotech, vol. 7, n° 5, oct. 2017, doi: 10.1007/s13205-017-0963-7.
[39]	R. Pantawong, A. Chuanchai, P. Thipbunrat, Y. Unpaprom, et R. Ramaraj, «Experimental Investigation of Biogas Production from Water Lettuce, Pistia stratiotes L», Emergent Life Sciences Research, vol. 1, p. 41-46, déc. 2015.

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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