Robust assessment of both biochemical methane potential and degradation kinetics of solid residues in successive batches.
Identifieur interne : 000411 ( Main/Exploration ); précédent : 000410; suivant : 000412Robust assessment of both biochemical methane potential and degradation kinetics of solid residues in successive batches.
Auteurs : Mokhles Kouas [Tunisie] ; Michel Torrijos [France] ; Philippe Sousbie [France] ; Jean-Philippe Steyer [France] ; Sami Sayadi [Tunisie] ; Jérôme Harmand [France]Source :
- Waste management (New York, N.Y.) [ 1879-2456 ] ; 2017.
Descripteurs français
- KwdFr :
- MESH :
- métabolisme : Méthane.
- méthodes : Élimination des déchets.
- Anaérobiose, Bioréacteurs, Cinétique, Dépollution biologique de l'environnement.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Methane.
- methods : Refuse Disposal.
- Anaerobiosis, Biodegradation, Environmental, Bioreactors, Kinetics.
Abstract
The well-known batch assay test is used worldwide to determine the biochemical methane potential (BMP) of solid substrates in a single batch but its use to estimate the degradation kinetics may lead to underestimations. To overcome this problem, a different approach was carried out to characterize simultaneously both BMP of solid substrates and their degradation kinetics in successive batches, i.e. after an acclimation period. In a second step, a simple model was developed based on the methane production curve in batch mode for dividing the organic matter of the substrate into three sub-fractions according to their degradation rates (rapid, moderate and slow). The protocol developed was applied to 50 different substrates and a database was built. This database includes: the overall BMP (mL CH4/g VS) and the degradation kinetics for each substrate, i.e. the global specific organic degradation rate (g VS/g VSS.d) along with the 3 sub-fractions and their specific degradation rates. The comparison with the BMP from the literature did not highlight significant difference with the BMP measured in this study. Furthermore, the degradation rates seem to be specific characteristics for each substrate and no clear correlation was found between the degradation kinetics and the kind of substrates. The information available in the database will be useful for the design and operation of anaerobic digesters: Optimization of the mix of co-substrates, choice of the applied OLR, simulation of methane production and of the rate of substrate degradation.
DOI: 10.1016/j.wasman.2017.09.001
PubMed: 28899591
Affiliations:
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Electronic address: jerome.harmand@inra.fr.</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>LBE, INRA, 102 avenue des Etangs, 11100 Narbonne</wicri:regionArea><placeName><region type="region" nuts="2">Occitanie (région administrative)</region><region type="old region" nuts="2">Languedoc-Roussillon</region><settlement type="city">Narbonne</settlement></placeName></affiliation></author></analytic><series><title level="j">Waste management (New York, N.Y.)</title><idno type="eISSN">1879-2456</idno><imprint><date when="2017" type="published">2017</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anaerobiosis (MeSH)</term><term>Biodegradation, Environmental (MeSH)</term><term>Bioreactors (MeSH)</term><term>Kinetics (MeSH)</term><term>Methane (metabolism)</term><term>Refuse Disposal (methods)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Anaérobiose (MeSH)</term><term>Bioréacteurs (MeSH)</term><term>Cinétique (MeSH)</term><term>Dépollution biologique de l'environnement (MeSH)</term><term>Méthane (métabolisme)</term><term>Élimination des déchets (méthodes)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Methane</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Refuse Disposal</term></keywords><keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr"><term>Méthane</term></keywords><keywords scheme="MESH" qualifier="méthodes" xml:lang="fr"><term>Élimination des déchets</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Anaerobiosis</term><term>Biodegradation, Environmental</term><term>Bioreactors</term><term>Kinetics</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Anaérobiose</term><term>Bioréacteurs</term><term>Cinétique</term><term>Dépollution biologique de l'environnement</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The well-known batch assay test is used worldwide to determine the biochemical methane potential (BMP) of solid substrates in a single batch but its use to estimate the degradation kinetics may lead to underestimations. To overcome this problem, a different approach was carried out to characterize simultaneously both BMP of solid substrates and their degradation kinetics in successive batches, i.e. after an acclimation period. In a second step, a simple model was developed based on the methane production curve in batch mode for dividing the organic matter of the substrate into three sub-fractions according to their degradation rates (rapid, moderate and slow). The protocol developed was applied to 50 different substrates and a database was built. This database includes: the overall BMP (mL CH<sub>4</sub>/g VS) and the degradation kinetics for each substrate, i.e. the global specific organic degradation rate (g VS/g VSS.d) along with the 3 sub-fractions and their specific degradation rates. The comparison with the BMP from the literature did not highlight significant difference with the BMP measured in this study. Furthermore, the degradation rates seem to be specific characteristics for each substrate and no clear correlation was found between the degradation kinetics and the kind of substrates. The information available in the database will be useful for the design and operation of anaerobic digesters: Optimization of the mix of co-substrates, choice of the applied OLR, simulation of methane production and of the rate of substrate degradation.</div></front></TEI><affiliations><list><country><li>France</li><li>Tunisie</li></country><region><li>Languedoc-Roussillon</li><li>Occitanie (région administrative)</li></region><settlement><li>Narbonne</li></settlement></list><tree><country name="Tunisie"><noRegion><name sortKey="Kouas, Mokhles" sort="Kouas, Mokhles" uniqKey="Kouas M" first="Mokhles" last="Kouas">Mokhles Kouas</name></noRegion><name sortKey="Sayadi, Sami" sort="Sayadi, Sami" uniqKey="Sayadi S" first="Sami" last="Sayadi">Sami Sayadi</name></country><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Torrijos, Michel" sort="Torrijos, Michel" uniqKey="Torrijos M" first="Michel" last="Torrijos">Michel Torrijos</name></region><name sortKey="Harmand, Jerome" sort="Harmand, Jerome" uniqKey="Harmand J" first="Jérôme" last="Harmand">Jérôme Harmand</name><name sortKey="Sousbie, Philippe" sort="Sousbie, Philippe" uniqKey="Sousbie P" first="Philippe" last="Sousbie">Philippe Sousbie</name><name sortKey="Steyer, Jean Philippe" sort="Steyer, Jean Philippe" uniqKey="Steyer J" first="Jean-Philippe" last="Steyer">Jean-Philippe Steyer</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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