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The present study investigated a wet mechanical pretreatment to improve methane production by anaerobic digestion from biowaste material by separating a biodegradable aqueous slurry fraction (ASF) from a more recalcitrant particulate fraction (PF). Four source-sorted municipal biowastes were studied, namely household (HBW), supermarket (SBW), restaurant (RBW), and green biowaste (GBW). The treatment consisted in soaking the waste in water and then pressing the slurry through a grid with 3-mm openings to separate the two fractions. Methane production of ASF and PF obtained from the four biowastes were measured using the BMP protocol and compared to the potential of the respective untreated biowaste. Results were very different for GBW as compared to the other three BWs. With GBW, which was the most lignocellulosic of the BW studied, only 17% of the initial methane potential was recovered in the ASF. The extraction was much better on the other biowastes and increased in the following order: HBW (58%) ≃ RBW (57%) < SBW (67%). The ASF from these biowastes exhibited low total solid contents and high BMPs (416, 408, and 423 NLCH4.g−1vs for HBW, RBW, and SBW respectively). The experimental results obtained in this study therefore showed that wet pressing separation was an efficient pretreatment to improve and facilitate methane production by anaerobic digestion of biowaste such as HBW, RBW, and SBW.
Paul Moretti; Mariana Moreira de Oliveira; Rémy Bayard; Pierre Buffiere; Joacio Morais de Araujo; Armando Borges de Castilhos; Rémy Gourdon. Mechanical pretreatment of municipal biowaste to produce an aqueous slurry dedicated to anaerobic digestion. Environmental Science and Pollution Research 2021, 28, 20586 -20597.
AMA StylePaul Moretti, Mariana Moreira de Oliveira, Rémy Bayard, Pierre Buffiere, Joacio Morais de Araujo, Armando Borges de Castilhos, Rémy Gourdon. Mechanical pretreatment of municipal biowaste to produce an aqueous slurry dedicated to anaerobic digestion. Environmental Science and Pollution Research. 2021; 28 (16):20586-20597.
Chicago/Turabian StylePaul Moretti; Mariana Moreira de Oliveira; Rémy Bayard; Pierre Buffiere; Joacio Morais de Araujo; Armando Borges de Castilhos; Rémy Gourdon. 2021. "Mechanical pretreatment of municipal biowaste to produce an aqueous slurry dedicated to anaerobic digestion." Environmental Science and Pollution Research 28, no. 16: 20586-20597.
The objectives of this study were to: (1) quantify differences in biochemical methane potential (BMP) measured using three measurement methods, including two popular methods (a commercial automated system (AMPTS II) and manual manometric) and one newer method (gravimetric), and (2) assess the importance of the mixing position in the measurement sequence. Powdered microcrystalline cellulose was used as the substrate in simultaneous tests. All methods gave similar results (4 production from blanks. This effect may be linked to a fraction of CH4 that remains dissolved or even as attached bubbles, and suggests that mixing before measurement is preferable. The automated volumetric and gravimetric methods (mode 2) gave very similar mean BMP values (1% different). However, kinetic analysis showed that methane production was faster with the automated volumetric method. This could come from an error in the estimation of the CH4 production rate for the automated method, or an increase in the degradation rate due to better mixing. Both automatic volumetric and manual gravimetric measurements met current validation criteria for mean cellulose BMP, but the RSD from the automated system exceeded the limit.
Corrado Amodeo; Sasha D. Hafner; Rúben Teixeira Franco; Hassen Benbelkacem; Paul Moretti; Rémy Bayard; Pierre Buffière. How Different Are Manometric, Gravimetric, and Automated Volumetric BMP Results? Water 2020, 12, 1839 .
AMA StyleCorrado Amodeo, Sasha D. Hafner, Rúben Teixeira Franco, Hassen Benbelkacem, Paul Moretti, Rémy Bayard, Pierre Buffière. How Different Are Manometric, Gravimetric, and Automated Volumetric BMP Results? Water. 2020; 12 (6):1839.
Chicago/Turabian StyleCorrado Amodeo; Sasha D. Hafner; Rúben Teixeira Franco; Hassen Benbelkacem; Paul Moretti; Rémy Bayard; Pierre Buffière. 2020. "How Different Are Manometric, Gravimetric, and Automated Volumetric BMP Results?" Water 12, no. 6: 1839.
Biowaste material is a good candidate for the production of energy in urban territories. The presence of undesirable or constituents mixed with the biowaste collected by municipalities makes it difficult to recycle organic matter of sufficient quality for agricultural uses. Methane production is particularly attractive for energy recovery notably because this energy vector can be distributed using the grid already in place for natural gas in many cities. Depending on the origin and biochemical composition of biowaste, methane can be produced using thermochemical (gasification then syngas methanation) or biological processes (anaerobic digestion). The objective of this work was to characterize the ability of biowaste to be used as a feedstock for anaerobic digestion. Based on considerations such as the quantities produced and the availability, four categories of biowaste produced in the city of Lyon were identified as potential key resources: Garden biowaste (GBW), restauration biowaste (RBW), household biowaste (HBW) and supermarkets biowaste (SMBW). Representative samples were taken from the sites of production and analyzed for parameters including biomethane potential (BMP). Each sample was then fractioned by leaching and the distribution of the BMP between the particulate fraction and the readily soluble fraction was assessed. GBW organic matter exhibited high hemicellulose content (over 81% of VS) and a low BMP which was very poorly distributed into its soluble fraction (2 NL·kgTS-1). RBW, HBW and SMBW showed a much higher BMP with a strong distribution in the soluble fraction (100 NL·kgTS-1). Plastic materials were found to account for up to 40% of the mass of SMBW sample. Altogether, GBW was identified as non-favorable for anaerobic digestion and recommended rather for thermochemical conversion. HBW, RBW and SMBW revealed adapted to anaerobic. Pulping was shown to be applicable in order to convert the 3 biowaste materials into a pumpable slurry with high biomethane potential.
Paul Moretti; J. Morais de Araujo; A. Borges de Castilhos; P. Buffière; R. Gourdon; R. Bayard. Characterization of municipal biowaste categories for their capacity to be converted into a feedstock aqueous slurry to produce methane by anaerobic digestion. Science of The Total Environment 2020, 716, 137084 .
AMA StylePaul Moretti, J. Morais de Araujo, A. Borges de Castilhos, P. Buffière, R. Gourdon, R. Bayard. Characterization of municipal biowaste categories for their capacity to be converted into a feedstock aqueous slurry to produce methane by anaerobic digestion. Science of The Total Environment. 2020; 716 ():137084.
Chicago/Turabian StylePaul Moretti; J. Morais de Araujo; A. Borges de Castilhos; P. Buffière; R. Gourdon; R. Bayard. 2020. "Characterization of municipal biowaste categories for their capacity to be converted into a feedstock aqueous slurry to produce methane by anaerobic digestion." Science of The Total Environment 716, no. : 137084.
Pre-treatments are often applied in anaerobic digestion in order to improve the performance of the process: increased methane yield and rate. Physical pretreatments are the most commonly used for anaerobic digestion of agricultural waste. The main purpose of this work was to evaluate the effects of different lab-scale mechanical pretreatments on cattle manure. Three mechanical pre-treatments were sequentially applied to cattle manure: shredding, mixing and blending. An original set of analytical procedures was performed before and after mechanical pretreatments, in order to assess physical, chemical and biological properties of the feedstock. Thus, shredding and mixing pre-treatments were not significantly efficient in terms of methane production yield and rate. In contrast, methane production rate increased with blending treatment, and methane yield was slightly improved as well. An increase of soluble chemical oxygen demand (COD) was also reported with blending pretreatment. The reduction of particle size was mainly between 31.5 and 4 mm for all pretreatments and it led to an increase of water retention capacity of the cattle manure. Therefore, mechanical pre-treatments do not only affect the biochemical characteristics of agricultural waste. It also influences its structure and reactivity. In this context, blending pretreatment showed as the most performant pretreatment among the evaluated pretreatments with an increase of 18% on methane rate and a higher COD solubilisation.
Helen Coarita Fernandez; R. Teixeira Franco; R. Bayard; P. Buffiere. Mechanical Pre-treatments Evaluation of Cattle Manure Before Anaerobic Digestion. Waste and Biomass Valorization 2020, 11, 1 -10.
AMA StyleHelen Coarita Fernandez, R. Teixeira Franco, R. Bayard, P. Buffiere. Mechanical Pre-treatments Evaluation of Cattle Manure Before Anaerobic Digestion. Waste and Biomass Valorization. 2020; 11 (10):1-10.
Chicago/Turabian StyleHelen Coarita Fernandez; R. Teixeira Franco; R. Bayard; P. Buffiere. 2020. "Mechanical Pre-treatments Evaluation of Cattle Manure Before Anaerobic Digestion." Waste and Biomass Valorization 11, no. 10: 1-10.
Different methods were tested to evaluate the performance of a pretreatment before anaerobic digestion. Besides conventional biochemical parameters, such as the biochemical methane potential (BMP), the methane production rate, or the extent of solubilization of organic compounds, methods for physical characterization were also developed in the present work. Criteria, such as the particle size distribution, the water retention capacity, and the rheological properties, were thus measured. These methods were tested on samples taken in two full-scale digesters operating with cattle manure as a substrate and using hammer mills. The comparison of samples taken before and after the pretreatment unit showed no significant improvement in the methane potential. However, the methane production rate increased by 15% and 26% for the two hammer mills, respectively. A relevant improvement of the rheological properties was also observed. This feature is likely correlated with the average reduction in particle size during the pretreatment operation, but these results needs confirmation in a wider range of systems.
Helen Coarita Fernandez; Diana Amaya Ramirez; Ruben Teixeira Franco; Pierre Buffière; Rémy Bayard. Methods for the Evaluation of Industrial Mechanical Pretreatments before Anaerobic Digesters. Molecules 2020, 25, 860 .
AMA StyleHelen Coarita Fernandez, Diana Amaya Ramirez, Ruben Teixeira Franco, Pierre Buffière, Rémy Bayard. Methods for the Evaluation of Industrial Mechanical Pretreatments before Anaerobic Digesters. Molecules. 2020; 25 (4):860.
Chicago/Turabian StyleHelen Coarita Fernandez; Diana Amaya Ramirez; Ruben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2020. "Methods for the Evaluation of Industrial Mechanical Pretreatments before Anaerobic Digesters." Molecules 25, no. 4: 860.
Pesticides represent a significant source of contamination for urban and suburban surface, ground and seawaters.
Antoine Gosset; Víctor Oestreicher; Mercedes Perullini; Sara Aldabe Bilmes; Matías Jobbágy; Sophie Dulhoste; Rémy Bayard; Claude Durrieu. Optimization of sensors based on encapsulated algae for pesticide detection in water. Analytical Methods 2019, 11, 6193 -6203.
AMA StyleAntoine Gosset, Víctor Oestreicher, Mercedes Perullini, Sara Aldabe Bilmes, Matías Jobbágy, Sophie Dulhoste, Rémy Bayard, Claude Durrieu. Optimization of sensors based on encapsulated algae for pesticide detection in water. Analytical Methods. 2019; 11 (48):6193-6203.
Chicago/Turabian StyleAntoine Gosset; Víctor Oestreicher; Mercedes Perullini; Sara Aldabe Bilmes; Matías Jobbágy; Sophie Dulhoste; Rémy Bayard; Claude Durrieu. 2019. "Optimization of sensors based on encapsulated algae for pesticide detection in water." Analytical Methods 11, no. 48: 6193-6203.
Composites with high density polyethylene (HDPE) and poly(lactic) acid (PLA) matrix have been tested to analyze the effect of natural fillers (wood flour, recycled wastepaper and a mix of both fillers) and temperature on polymer degradation. Composting tests have been performed in both mesophilic (35 °C) and thermophilic (58 °C) conditions. Degradation development has been evaluated through mass variation, thermogravimetric analysis and differential scanning calorimetry. HDPE, as expected, did not display any relevant variation, confirming its stability under our composting conditions. PLA is sensibly influenced by temperature and humidity, with higher reduction of Mw when composting is performed at 58 °C. Natural fillers seem to influence degradation process of composites, already at 35 °C. In fact, degradation of fillers at 35 °C allows a mass reduction during composting of composites, while neat PLA do not display any variation.
Alessia Quitadamo; Valerie Massardier; Valeria Iovine; Ahmed Belhadj; Rémy Bayard; Marco Valente. Effect of Cellulosic Waste Derived Filler on the Biodegradation and Thermal Properties of HDPE and PLA Composites. Processes 2019, 7, 647 .
AMA StyleAlessia Quitadamo, Valerie Massardier, Valeria Iovine, Ahmed Belhadj, Rémy Bayard, Marco Valente. Effect of Cellulosic Waste Derived Filler on the Biodegradation and Thermal Properties of HDPE and PLA Composites. Processes. 2019; 7 (10):647.
Chicago/Turabian StyleAlessia Quitadamo; Valerie Massardier; Valeria Iovine; Ahmed Belhadj; Rémy Bayard; Marco Valente. 2019. "Effect of Cellulosic Waste Derived Filler on the Biodegradation and Thermal Properties of HDPE and PLA Composites." Processes 7, no. 10: 647.
A stoechio-kinetic model describing the evolution of biomass through the ensiling process was developed. The model framework is based on the ADM1 in order to establish a mathematical link between ensiling and anaerobic digestion. Data from ensiling experiments with catch crop and cattle manure were used for model implementation. The model accurately describes the evolution of chemical species under most of storage conditions. Only very few adjusted parameters varied among the tested conditions, notably certain kinetic coefficients. These coefficients depend on the nature and biochemical characteristics of the feedstock. Simulations of the conservation of the biomethane potential were qualitatively consistent with the experimental results. However, additional reactions or inhibitory phenomena should be added to enhance quantitative reliability of this parameter in some cases. Simulations results show that hydrolysis reactions have low kinetic constants during ensiling (0.001-0.012 d-1). Furthermore, different tolerance levels to pH and dryness among microbial populations were identified. Lactic acid bacteria can proliferate at low pH and low moisture content. The remaining fermentative microorganisms, such as clostridial bacteria, are more sensitive to low pH conditions. Moreover, this model illustrates that the conservation of methane potential is positively correlated with the content of easily accessible carbohydrates and total solids in the raw material. This work can be a support tool for the management of resources before anaerobic digestion.
Ruben Teixeira Franco; Rémy Bayard; Pierre Buffière. Mathematical modelling of the ensiling process before biogas production: Strengthening the links between biomass storage and anaerobic digestion. Chemical Engineering Journal 2018, 350, 872 -882.
AMA StyleRuben Teixeira Franco, Rémy Bayard, Pierre Buffière. Mathematical modelling of the ensiling process before biogas production: Strengthening the links between biomass storage and anaerobic digestion. Chemical Engineering Journal. 2018; 350 ():872-882.
Chicago/Turabian StyleRuben Teixeira Franco; Rémy Bayard; Pierre Buffière. 2018. "Mathematical modelling of the ensiling process before biogas production: Strengthening the links between biomass storage and anaerobic digestion." Chemical Engineering Journal 350, no. : 872-882.
Rúben Teixeira Franco; Pierre Buffière; Rémy Bayard. Co-ensiling of cattle manure before biogas production: Effects of fermentation stimulants and inhibitors on biomass and methane preservation. Renewable Energy 2018, 121, 315 -323.
AMA StyleRúben Teixeira Franco, Pierre Buffière, Rémy Bayard. Co-ensiling of cattle manure before biogas production: Effects of fermentation stimulants and inhibitors on biomass and methane preservation. Renewable Energy. 2018; 121 ():315-323.
Chicago/Turabian StyleRúben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2018. "Co-ensiling of cattle manure before biogas production: Effects of fermentation stimulants and inhibitors on biomass and methane preservation." Renewable Energy 121, no. : 315-323.
Biological treatments of Residual Municipal Solid Waste (RMSW) allow to divert biodegradable materials from landfilling and recover valuable alternative resources. The biodegradability of the waste components needs however to be assessed in order to design the bioprocesses properly. The present study investigated complementary approaches to aerobic and anaerobic biotests for a more rapid evaluation. A representative sample of residual MSW was collected from a Mechanical Biological Treatment (MBT) plant and sorted out into 13 fractions according to the French standard procedure MODECOM™. The different fractions were analyzed for organic matter content, leaching behavior, contents in biochemical constituents (determined by Van Soest's acid detergent fiber method), Biochemical Oxygen Demand (BOD) and Bio-Methane Potential (BMP). Experimental data were statistically treated by Principal Components Analysis (PCA). Cumulative oxygen consumption from BOD tests and cumulative methane production from BMP tests were found to be positively correlated in all waste fractions. No correlation was observed between the results from BOD or BMP bioassays and the contents in cellulose-like, hemicelluloses-like or labile organic compounds. No correlation was observed either with the results from leaching tests (Soluble COD). The contents in lignin-like compounds, evaluated as the non-extracted RES fraction in Van Soest's method, was found however to impact negatively the biodegradability assessed by BOD or BMP tests. Since cellulose, hemicelluloses and lignin are the polymers responsible for the structuration of lignocellulosic complexes, it was concluded that the structural organization of the organic matter in the different waste fractions was more determinant on biodegradability than the respective contents in individual biopolymers.
R. Bayard; Hassen Benbelkacem; Rémy Gourdon; P. Buffière. Characterization of selected municipal solid waste components to estimate their biodegradability. Journal of Environmental Management 2018, 216, 4 -12.
AMA StyleR. Bayard, Hassen Benbelkacem, Rémy Gourdon, P. Buffière. Characterization of selected municipal solid waste components to estimate their biodegradability. Journal of Environmental Management. 2018; 216 ():4-12.
Chicago/Turabian StyleR. Bayard; Hassen Benbelkacem; Rémy Gourdon; P. Buffière. 2018. "Characterization of selected municipal solid waste components to estimate their biodegradability." Journal of Environmental Management 216, no. : 4-12.
The impacts of storage conditions, total solids content and silage additives were investigated at laboratory scale for cattle manure during up to 120 days. Wheat straw was used as co-substrate in the study of the effects of total solids content. Glucose and starch were used as model molecules of sugar-rich co-substrates. Single-handedly cattle manure lost 37% of its original methane potential after 120 days of anaerobic storage. This was essentially caused by the low total solids content and by the absence of water soluble carbohydrates in the feedstock. Wheat straw addition decreased moisture content and enabled cattle manure stabilization for a pH of 6.0. In contrast, extensive heterofermentative lactic acid bacteria fermentation occurred during co-ensiling with glucose and the pH quickly dropped to values below 4.0. Starch was used as substrate for fermentation but its hydrolysis limited bacterial activity and acidification. Finally, all the three co-substrates led to minimal methane potential losses after 120 days of storage. Co-ensiling will improve the energy efficiency of agricultural biogas plants that use stored cattle manure as feedstock.
Ruben Teixeira Franco; Pierre Buffière; Rémy Bayard. Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion. Waste and Biomass Valorization 2018, 9, 2307 -2317.
AMA StyleRuben Teixeira Franco, Pierre Buffière, Rémy Bayard. Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion. Waste and Biomass Valorization. 2018; 9 (12):2307-2317.
Chicago/Turabian StyleRuben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2018. "Effects of Storage Conditions, Total Solids Content and Silage Additives on Fermentation Profiles and Methane Preservation of Cattle Manure Before Anaerobic Digestion." Waste and Biomass Valorization 9, no. 12: 2307-2317.
Ruben Teixeira Franco; Pierre Buffière; Rémy Bayard. Maîtrise de la gestion des fumiers de bovin avant méthanisation : un enjeu clé pour optimiser la production de biogaz. Déchets, sciences et techniques 2018, 1 .
AMA StyleRuben Teixeira Franco, Pierre Buffière, Rémy Bayard. Maîtrise de la gestion des fumiers de bovin avant méthanisation : un enjeu clé pour optimiser la production de biogaz. Déchets, sciences et techniques. 2018; (N°78):1.
Chicago/Turabian StyleRuben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2018. "Maîtrise de la gestion des fumiers de bovin avant méthanisation : un enjeu clé pour optimiser la production de biogaz." Déchets, sciences et techniques , no. N°78: 1.
The effects of ensiling and open-air storage on the conservation of cattle manure were investigated for 120 days at laboratory scale. The impact of co-ensiling with wheat straw was assessed as well. Up to 74% of methane potential was lost during aerobic storage. Negligible energetic losses and ammonia emissions occurred during the first month of anaerobic preservation. However, inadequate chemical properties of fresh cattle manure hindered silage stabilization for extended periods, leading to 46% methane losses after 4 months. Co-ensiling of cattle manure with wheat straw enhanced biomass acidification, inducing a conservation of more than 86% of the methane potential after 4 months. Wheat straw addition suppressed ammonia production and limited the risks of losses through liquid effluent. The current study proves that long-term conservation of cattle manure can be achieved if correct management practices are used, which will undoubtedly improve the performance of biogas plants with this raw material.
Rúben Teixeira Franco; Pierre Buffière; Rémy Bayard. Cattle manure for biogas production. Does ensiling and wheat straw addition enhance preservation of biomass and methane potential? Biofuels 2017, 11, 671 -682.
AMA StyleRúben Teixeira Franco, Pierre Buffière, Rémy Bayard. Cattle manure for biogas production. Does ensiling and wheat straw addition enhance preservation of biomass and methane potential? Biofuels. 2017; 11 (6):671-682.
Chicago/Turabian StyleRúben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2017. "Cattle manure for biogas production. Does ensiling and wheat straw addition enhance preservation of biomass and methane potential?" Biofuels 11, no. 6: 671-682.
Rúben Teixeira Franco; Pierre Buffière; Rémy Bayard. Optimizing storage of a catch crop before biogas production: Impact of ensiling and wilting under unsuitable weather conditions. Biomass and Bioenergy 2017, 100, 84 -91.
AMA StyleRúben Teixeira Franco, Pierre Buffière, Rémy Bayard. Optimizing storage of a catch crop before biogas production: Impact of ensiling and wilting under unsuitable weather conditions. Biomass and Bioenergy. 2017; 100 ():84-91.
Chicago/Turabian StyleRúben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2017. "Optimizing storage of a catch crop before biogas production: Impact of ensiling and wilting under unsuitable weather conditions." Biomass and Bioenergy 100, no. : 84-91.
Fungal pretreatment by Ceriporiopsis subvermispora of two forest residues (hazel and acacia branches) and two agricultural lignocellulosic residues (barley straw and sugarcane bagasse) were studied as a pretreatment to improve their subsequent anaerobic digestion for methane production. Biomass samples were grinded to 2 ranges of particle sizes (<4 or 1 mm), autoclaved, inoculated with two strains of C. subvermispora (ATCC 90467 and ATCC 96608) and incubated at 28 °C for 28 days. The effects of fungal pretreatment were assessed by analyzing the samples before and after incubations for dry solids mass, biochemical composition, bio-methane production (BMP) and availability of cellulose to hydrolysis. The production of ligninolytic enzymes MnP and/or laccase was observed with both strains during incubation on most of the samples tested. It almost doubled the hazel branches BMP per unit mass of dry solids but did not improve however the BMP of the agricultural residues and acacia branches. These observations were explained by the fact that although both strains were able to degrade 20-25% of lignin in <1 mm and <4 mm hazel branches samples, none of them was successful however to significantly degrade lignin in the other samples, except for sugarcane bagasse.
X. Liu; Serge Hiligsmann; Rémy Gourdon; R. Bayard. Anaerobic digestion of lignocellulosic biomasses pretreated with Ceriporiopsis subvermispora. Journal of Environmental Management 2017, 193, 154 -162.
AMA StyleX. Liu, Serge Hiligsmann, Rémy Gourdon, R. Bayard. Anaerobic digestion of lignocellulosic biomasses pretreated with Ceriporiopsis subvermispora. Journal of Environmental Management. 2017; 193 ():154-162.
Chicago/Turabian StyleX. Liu; Serge Hiligsmann; Rémy Gourdon; R. Bayard. 2017. "Anaerobic digestion of lignocellulosic biomasses pretreated with Ceriporiopsis subvermispora." Journal of Environmental Management 193, no. : 154-162.
Gaston Jean; Rémy Bayard; Joaneson Lacour; Pascale Naquin. Assainissement par toilettes sèches à litière biomaîtrisée : premiers résultats d’une expérimentation menée en milieu rural (Grande Plaine, commune de Gros-Morne, Haïti). Déchets, sciences et techniques 2017, 1 .
AMA StyleGaston Jean, Rémy Bayard, Joaneson Lacour, Pascale Naquin. Assainissement par toilettes sèches à litière biomaîtrisée : premiers résultats d’une expérimentation menée en milieu rural (Grande Plaine, commune de Gros-Morne, Haïti). Déchets, sciences et techniques. 2017; (N°74):1.
Chicago/Turabian StyleGaston Jean; Rémy Bayard; Joaneson Lacour; Pascale Naquin. 2017. "Assainissement par toilettes sèches à litière biomaîtrisée : premiers résultats d’une expérimentation menée en milieu rural (Grande Plaine, commune de Gros-Morne, Haïti)." Déchets, sciences et techniques , no. N°74: 1.
Ruben Teixeira Franco; Pierre Buffière; Rémy Bayard. Ensiling for biogas production: Critical parameters. A review. Biomass and Bioenergy 2016, 94, 94 -104.
AMA StyleRuben Teixeira Franco, Pierre Buffière, Rémy Bayard. Ensiling for biogas production: Critical parameters. A review. Biomass and Bioenergy. 2016; 94 ():94-104.
Chicago/Turabian StyleRuben Teixeira Franco; Pierre Buffière; Rémy Bayard. 2016. "Ensiling for biogas production: Critical parameters. A review." Biomass and Bioenergy 94, no. : 94-104.
The potential of methane production by anaerobic digestion of lignocellulosic biomass depends not only on the availability of the resources in the considered territory, but also on their physico-chemical characteristics. Relevant methods of characterization are, therefore, needed to select and possibly combine the most appropriate biomass substrates in order to optimize energy recovery through anaerobic digestion processes. The objective of the present study was to determine whether biomethane potential of such substrates could be predicted from a limited number of variables more rapidly or determined more easily. A set of 36 biomass substrates and organic residues from a variety of origins was analyzed for total and easily hydrosoluble organic matter fractions (volatile solid, VS and soluble chemical oxygen demand, SCOD), neutral detergent soluble fraction (SOL), hemicelluloses (HEM), cellulose (CELL), and lignin-like residual fractions (RES). Bioreactivity of all samples was also measured by experimental assays (biochemical oxygen demand, BOD and biochemical methane potential, BMP). The whole set of data thereby obtained was analyzed statistically considering one dependent variable (BMP), and six independent variables (SCOD, SOL, HEM, CELL, RES, and BOD). Partial least square (PLS) analysis revealed very clearly a positive correlation between BMP and BOD, which were both anti-correlated with RES. On the other hand, no correlations were observed between BMP, SCOD, HEM, and CELL contents. PLS analysis showed that BMP was significantly correlated to the six independent variables. The most influential variables were found to be RES and BOD, and a polynomial model was successfully validated for the prediction of BMP from RES and BOD.
Rémy Bayard; Xun Liu; Hassen Benbelkacem; Pierre Buffière; Rémy Gourdon. Can Biomethane Potential (BMP) Be Predicted from Other Variables Such As Biochemical Composition in Lignocellulosic Biomass and Related Organic Residues? BioEnergy Research 2016, 9, 610 -623.
AMA StyleRémy Bayard, Xun Liu, Hassen Benbelkacem, Pierre Buffière, Rémy Gourdon. Can Biomethane Potential (BMP) Be Predicted from Other Variables Such As Biochemical Composition in Lignocellulosic Biomass and Related Organic Residues? BioEnergy Research. 2016; 9 (2):610-623.
Chicago/Turabian StyleRémy Bayard; Xun Liu; Hassen Benbelkacem; Pierre Buffière; Rémy Gourdon. 2016. "Can Biomethane Potential (BMP) Be Predicted from Other Variables Such As Biochemical Composition in Lignocellulosic Biomass and Related Organic Residues?" BioEnergy Research 9, no. 2: 610-623.
Solid waste biodegradability is a key parameter to control and optimize high solid anaerobic digestion (HSAD) of biowaste (BW) and residual municipal solid waste (RMSW). It enables to assess the biomethane potential and the biostability achieved by the process. The objective of this study was to correlate the biochemical methane potential (BMP) with selected analytical parameters commonly used to predict bioreactivity of solid organic samples, such as global analyses (VS, TOC, CODTot N-TKN), biochemical analyses (humic substance index, Van Soest fractionation method, total lipid content, and total protein content), leaching behaviour (VFA, CODSol, N-TKN and N-NH3), and respirometric activity (i.e. BOD on solid samples suspended in liquid medium, for this study). The data set was obtained by analysing the parameters listed above for two RMSW and two BW, collected from three full-scale HSAD plants, and their respective digestates produced by the selected plants (i.e. altogether 4 wastes and 4 digestates). The principal component analysis showed that VS, COD, and TOC were partly redundant and that the set of parameters could be significantly reduced. Predicting anaerobic bioreactivity from single biochemical parameters such as the Van Soest fractions was not found relevant. On the opposite, the residual fraction RES and HSI were the most correlated to BMP and BOD. These two variables constitute good indicators for the description of the bioreactivity (and biostability) of the samples, and could be used to predict it.
R. Bayard; L. Gonzalez-Ramirez; J. Guendouz; Hassen Benbelkacem; P. Buffière; Rémy Gourdon. Statistical Analysis to Correlate Bio-physical and Chemical Characteristics of Organic Wastes and Digestates to Their Anaerobic Biodegradability. Waste and Biomass Valorization 2015, 6, 759 -769.
AMA StyleR. Bayard, L. Gonzalez-Ramirez, J. Guendouz, Hassen Benbelkacem, P. Buffière, Rémy Gourdon. Statistical Analysis to Correlate Bio-physical and Chemical Characteristics of Organic Wastes and Digestates to Their Anaerobic Biodegradability. Waste and Biomass Valorization. 2015; 6 (5):759-769.
Chicago/Turabian StyleR. Bayard; L. Gonzalez-Ramirez; J. Guendouz; Hassen Benbelkacem; P. Buffière; Rémy Gourdon. 2015. "Statistical Analysis to Correlate Bio-physical and Chemical Characteristics of Organic Wastes and Digestates to Their Anaerobic Biodegradability." Waste and Biomass Valorization 6, no. 5: 759-769.
Xun Liu; Rémy Bayard; Hassen Benbelkacem; Pierre Buffiere; Rémy Gourdon. Évaluation du potentiel biométhanogène de biomasses lignocellulosiques. Déchets, sciences et techniques 2014, 1 .
AMA StyleXun Liu, Rémy Bayard, Hassen Benbelkacem, Pierre Buffiere, Rémy Gourdon. Évaluation du potentiel biométhanogène de biomasses lignocellulosiques. Déchets, sciences et techniques. 2014; (67):1.
Chicago/Turabian StyleXun Liu; Rémy Bayard; Hassen Benbelkacem; Pierre Buffiere; Rémy Gourdon. 2014. "Évaluation du potentiel biométhanogène de biomasses lignocellulosiques." Déchets, sciences et techniques , no. 67: 1.