This page has only limited features, please log in for full access.

Prof. Stéphane Godbout
Laval University

Basic Info

Basic Info is private.

Research Keywords & Expertise

0 Manure management
0 Animal welfare and precision livestock farming
0 LCA analysis
0 air quality & Environmental Engineering
0 Pyrolysis and combustion of coals, biomasses and their mixtures

Fingerprints

Manure management
Animal welfare and precision livestock farming
air quality & Environmental Engineering

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

Eng. expert in animal production, bioenergy and ghg emissions

Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Review
Published: 22 May 2021 in Sustainability
Reads 0
Downloads 0

Sometimes the contamination in pig facilities can persist even after the washing and disinfection procedure. Some factors could influence this persistence, such as bacteria type, biofilm formation, material type and washing parameters. Therefore, this review summarizes how the type of surface can influence bacteria colonization and how the washing procedure can impact sanitary aspects, considering the different materials used in pig facilities. Studies have shown that biofilm formation on the surface of different materials is a complex system influenced by environmental conditions and the characteristics of each material’s surface and group of bacteria. These parameters, along with the washing parameters, are the main factors having an impact on the removal or persistence of biofilm in pig facilities even after the cleaning and disinfection processes. Some options are available for proper removal of biofilms, such as chemical treatments (i.e., detergent application), the use of hot water (which is indicated for some materials) and a longer washing time.

ACS Style

Erika Nakanishi; Joahnn Palacios; Stéphane Godbout; Sébastien Fournel. Interaction between Biofilm Formation, Surface Material and Cleanability Considering Different Materials Used in Pig Facilities—An Overview. Sustainability 2021, 13, 5836 .

AMA Style

Erika Nakanishi, Joahnn Palacios, Stéphane Godbout, Sébastien Fournel. Interaction between Biofilm Formation, Surface Material and Cleanability Considering Different Materials Used in Pig Facilities—An Overview. Sustainability. 2021; 13 (11):5836.

Chicago/Turabian Style

Erika Nakanishi; Joahnn Palacios; Stéphane Godbout; Sébastien Fournel. 2021. "Interaction between Biofilm Formation, Surface Material and Cleanability Considering Different Materials Used in Pig Facilities—An Overview." Sustainability 13, no. 11: 5836.

Journal article
Published: 13 May 2021 in Sustainability
Reads 0
Downloads 0

Daily measurements of the water table depth are sometimes needed to evaluate the influence of seasonal water stress on Sphagnum recolonization in restored ombrotrophic peatlands. However, continuous water table measurements are often scarce due to high costs and, as a result, water table depth is more commonly measured manually bimonthly with daily logs in few reference wells. A literature review identified six potential methods to estimate daily water table depth with bimonthly records and daily measurements from a reference well. A new estimation method based on the time series decomposition (TSD) is also presented. TSD and the six identified methods were compared with the water table records of an experimental peatland site with controlled water table regime located in Eastern Canada. The TSD method was the best performing method (R2 = 0.95, RMSE = 2.48 cm and the lowest AIC), followed by the general linear method (R2 = 0.92, RMSE = 3.10 cm) and support vector machines method (R2 = 0.91, RMSE = 3.24 cm). To estimate daily values, the TSD method, like the six traditional methods, requires daily data from a reference well. However, the TSD method does not require training nor parameter estimation. For the TSD method, changing the measurement frequency to weekly measurements decreases the RMSE by 16% (2.08 cm); monthly measurements increase the RMSE by 13% (2.80 cm).

ACS Style

Sebastian Gutierrez Pacheco; Robert Lagacé; Sandrine Hugron; Stéphane Godbout; Line Rochefort. Estimation of Daily Water Table Level with Bimonthly Measurements in Restored Ombrotrophic Peatland. Sustainability 2021, 13, 5474 .

AMA Style

Sebastian Gutierrez Pacheco, Robert Lagacé, Sandrine Hugron, Stéphane Godbout, Line Rochefort. Estimation of Daily Water Table Level with Bimonthly Measurements in Restored Ombrotrophic Peatland. Sustainability. 2021; 13 (10):5474.

Chicago/Turabian Style

Sebastian Gutierrez Pacheco; Robert Lagacé; Sandrine Hugron; Stéphane Godbout; Line Rochefort. 2021. "Estimation of Daily Water Table Level with Bimonthly Measurements in Restored Ombrotrophic Peatland." Sustainability 13, no. 10: 5474.

Journal article
Published: 10 March 2021 in Microorganisms
Reads 0
Downloads 0

Apple pomace (AP) is known to be rich in biomolecules beneficial for health and it may advantageously be used to overcome the critical step of piglets’ weaning. The study aimed to determine the effect of two levels of incorporation of AP on the performance, intestinal morphology, and microbiota of weaned piglets and investigate this feed ingredient as a weaning strategy. An experiment was performed with 42 piglets from weaning (28 days old) over a five-week period, including three iso-energetic and iso-nitrogenous diets (0%, 2%, and 4% dried AP diets) with seven pen-repetitions per diet (two pigs per pen). AP diets were beneficial for the average daily gain calculated on week 3 (p = 0.038) and some parameters of the intestinal architecture on the 35 post-weaning day. The 4% AP diet was beneficial for the feed conversion ratio (p = 0.002) and the energetic feed efficiency (p = 0.004) on the 35 post-weaning day. AP tended to influence the consistency of feces (softer to liquid, p = 0.096) and increased the counts of excreted pathogens (p = 0.072). Four percent AP influenced the richness of the microbiota and the bacteria profile as observed for the phylum Bacteroidetes or the class Clostridia. The 4% AP diet appeared as an interesting weaning strategy that should be evaluated in a large cohort.

ACS Style

Sandrine Dufourny; Nadine Antoine; Elena Pitchugina; Véronique Delcenserie; Stéphane Godbout; Caroline Douny; Marie-Louise Scippo; Eric Froidmont; Pierre Rondia; José Wavreille; Nadia Everaert. Apple Pomace and Performance, Intestinal Morphology and Microbiota of Weaned Piglets—A Weaning Strategy for Gut Health? Microorganisms 2021, 9, 572 .

AMA Style

Sandrine Dufourny, Nadine Antoine, Elena Pitchugina, Véronique Delcenserie, Stéphane Godbout, Caroline Douny, Marie-Louise Scippo, Eric Froidmont, Pierre Rondia, José Wavreille, Nadia Everaert. Apple Pomace and Performance, Intestinal Morphology and Microbiota of Weaned Piglets—A Weaning Strategy for Gut Health? Microorganisms. 2021; 9 (3):572.

Chicago/Turabian Style

Sandrine Dufourny; Nadine Antoine; Elena Pitchugina; Véronique Delcenserie; Stéphane Godbout; Caroline Douny; Marie-Louise Scippo; Eric Froidmont; Pierre Rondia; José Wavreille; Nadia Everaert. 2021. "Apple Pomace and Performance, Intestinal Morphology and Microbiota of Weaned Piglets—A Weaning Strategy for Gut Health?" Microorganisms 9, no. 3: 572.

Journal article
Published: 24 December 2020 in Animals
Reads 0
Downloads 0

Animal welfare concerns have been a challenging issue for producers and international marketing. In laying hen production, cage-free systems (CFS) have been identified as an alternative to ensure the laying hens’ well-being. Nevertheless, in CFS, important environmental issues have been reported, decreasing indoor air quality. Environmental control strategies (ECS) have been designed to enhance indoor air quality in CFSs. However, little information exists about the effect of these ECSs on natural animal behaviors. Four strategies and one control were tested in an experimental CFS, previously designed to track behavioral variables using video recordings over seven time-lapses of 1 hour per day. Spatial occupancy (SO) and laying hen behaviors (LHB) were registered. One statistical analysis was applied to evaluate the effect of ECS on SO and LHB using a multinomial response model. Results show lower chances to use litter area within the reduction of litter allowance treatment (T17) (p < 0.05). Neither the four ECSs nor the control implemented in this experiment affected the natural behaviors of the hens. However, stress patterns and high activity were reported in the T17 treatment. This study shows that it is possible to use these ECSs without disrupting laying hens’ natural behaviors.

ACS Style

Andrés F. Gonzalez-Mora; Araceli D. Larios; Alain N. Rousseau; Stéphane Godbout; Cédric Morin; Joahnn H. Palacios; Michèle Grenier; Sébastien Fournel. Assessing Environmental Control Strategies in Cage-Free Egg Production Systems: Effect on Spatial Occupancy and Natural Behaviors. Animals 2020, 11, 17 .

AMA Style

Andrés F. Gonzalez-Mora, Araceli D. Larios, Alain N. Rousseau, Stéphane Godbout, Cédric Morin, Joahnn H. Palacios, Michèle Grenier, Sébastien Fournel. Assessing Environmental Control Strategies in Cage-Free Egg Production Systems: Effect on Spatial Occupancy and Natural Behaviors. Animals. 2020; 11 (1):17.

Chicago/Turabian Style

Andrés F. Gonzalez-Mora; Araceli D. Larios; Alain N. Rousseau; Stéphane Godbout; Cédric Morin; Joahnn H. Palacios; Michèle Grenier; Sébastien Fournel. 2020. "Assessing Environmental Control Strategies in Cage-Free Egg Production Systems: Effect on Spatial Occupancy and Natural Behaviors." Animals 11, no. 1: 17.

Original article
Published: 26 September 2020 in Biomass Conversion and Biorefinery
Reads 0
Downloads 0

Liquids obtained by fractional condensation of pyrolysis vapors from two types of lignocellulosic biomass, namely Jerusalem artichoke stalk (high cellulose and ash contents) and white birch bark (high lignin and extractive contents), were compared. Using two condensers connected in series, a dark oily fraction rich in phenolic compounds and sugar derivatives was obtained at 90 °C (respectively, 14% of total polyphenols and 11% of total carbohydrates for the oily fraction from the agricultural stalk) followed by aqueous fraction at 0 °C. Stalk yielded a homogeneous oily fraction whereas the bark oily liquid was heterogeneous, due possibly to lignin pyrolysis products. Both yielded clear orange aqueous fractions having a chemical composition close to wood vinegar, > 60% water, and high concentrations of acetic acid, with also a significant content of polyphenols, around 5%. This study showed that fractional condensation could be a vital tool in pyrolysis-based biorefinery producing an oily (application as an energy source or as a chemical feedstock) and an aqueous fraction (applications as biocide or biostimulation in agriculture) by pyrolysis of vastly different lignocellulosic biomasses.

ACS Style

Étienne Le Roux; Simon Barnabé; Stéphane Godbout; Ingrid Zamboni; Joahnn Palacios. Production and characterization of two fractions of pyrolysis liquid from agricultural and wood residues. Biomass Conversion and Biorefinery 2020, 1 -11.

AMA Style

Étienne Le Roux, Simon Barnabé, Stéphane Godbout, Ingrid Zamboni, Joahnn Palacios. Production and characterization of two fractions of pyrolysis liquid from agricultural and wood residues. Biomass Conversion and Biorefinery. 2020; ():1-11.

Chicago/Turabian Style

Étienne Le Roux; Simon Barnabé; Stéphane Godbout; Ingrid Zamboni; Joahnn Palacios. 2020. "Production and characterization of two fractions of pyrolysis liquid from agricultural and wood residues." Biomass Conversion and Biorefinery , no. : 1-11.

Journal article
Published: 07 January 2020 in Livestock Science
Reads 0
Downloads 0

The increasing public concern for animal welfare has pushed the poultry sector to progressively replace conventional battery cages (CC) for laying hens with alternative systems such as enriched cages (EC) and aviaries (AV). The aim of this study was to compare laying performance, egg location, and egg quality associated with these three housing types. The experiment was conducted in twelve pilot-scale chambers fitted out with one of the three treatments. Each chamber housed 30 Lohmann LSL-Lite laying hens from 23 to 32 weeks of age. The available area was 492, 780, and 1120 cm²/hen for CC, EC, and AV, respectively. The EC and AV chambers were equipped with nest boxes, perches, and a pecking/scratching area (PSA). In the AV chambers, hens had free access to a space arranged in three levels with a wood shaving litter on the ground level as a PSA. Hen-day production was recorded and egg quality assessment included egg cleanliness, weight and proportion of each component (albumen, yolk, and shell) but also pH, Haugh unit, and meat spots for albumen; color intensity and blood spots for yolk; thickness and resistance for shell. The laying rate and egg weight were similar for CC and EC (around 96.5% and 59.5 g; P > 0.05). For AV, these parameters were significantly lower (77.2% and 58.6 g; P < 0.001) but the differences compared to the cage systems progressively reduced across time. Nearby 70% of the eggs were laid in the nests with EC while almost all of the eggs were laid on the litter at ground level with AV. The rate of clean eggs was around 77% for both cage systems compared to 14% for AV. Most of egg quality traits were identical for the three systems (P > 0.05) but there was a lower yolk proportion for eggs laid in AV (25.2% versus 25.7% for cages systems; P < 0.001) and higher shell resistance for eggs laid in CC (40.7 N versus 39.3 N for alternative systems; P < 0.001). Lower laying performance observed with AV could be explained by higher animal activity and competition for facilities, but these factors were not measured in this study. The reduction of the difference in egg productivity over time compared to cage systems suggest the need for a period of training/adaptation for pullets/hens kept in such an environment. An enriched cage system seems a balanced solution that combines both laying productivity and improved animal welfare. Further research should be performed to improve acceptance and appropriate use of resources by birds in an aviary system.

ACS Style

F.X. Philippe; Y. Mahmoudi; D. Cinq-Mars; M. Lefrançois; N. Moula; J. Palacios; F. Pelletier; S. Godbout. Comparison of egg production, quality and composition in three production systems for laying hens. Livestock Science 2020, 232, 103917 .

AMA Style

F.X. Philippe, Y. Mahmoudi, D. Cinq-Mars, M. Lefrançois, N. Moula, J. Palacios, F. Pelletier, S. Godbout. Comparison of egg production, quality and composition in three production systems for laying hens. Livestock Science. 2020; 232 ():103917.

Chicago/Turabian Style

F.X. Philippe; Y. Mahmoudi; D. Cinq-Mars; M. Lefrançois; N. Moula; J. Palacios; F. Pelletier; S. Godbout. 2020. "Comparison of egg production, quality and composition in three production systems for laying hens." Livestock Science 232, no. : 103917.

Journal article
Published: 02 September 2019 in Foods
Reads 0
Downloads 0

Potatoes (Solanum tuberosum L.) are a good dietary source of carbohydrates in the form of digestible starch (DS) and resistant starch (RS). As increased RS content consumption can be associated with decreased chronic disease risk, breeding efforts have focused on identifying potato varieties with higher RS content, which requires high-throughput analysis of starch profiles. For this purpose, freeze drying of potatoes has been used but this approach leads to inaccurate RS values. The present study objective was to assess the starch content (RS, DS and total starch (TS)) of three cooked potato genotypes that were dried using freeze drying and innovative drying techniques (microwave vacuum drying, instant controlled pressure drop drying and conductive hydro-drying) relative to freshly cooked potato samples. Depending on the genotype, all drying methods showed one or more starch measures that were significantly different from freshly cooked values. The combination of ultrasound and infrared assisted conductive hydro-drying was the only method identified to be associated with accurate assessment of DS and TS content relative to fresh samples. The drying treatments were all generally associated with highly variable RS content relative to fresh controls. We conclude that freshly cooked samples must be used for selecting varieties with a high proportion of RS starch as drying of cooked potatoes leads to unreliable RS measurements.

ACS Style

Christina E. Larder; Vahid Baeghbali; Celeste Pilon; Michèle M. Iskandar; Danielle J. Donnelly; Sebastian Pacheco; Stephane Godbout; Michael O. Ngadi; Stan Kubow. Effect of Non-Conventional Drying Methods on In Vitro Starch Digestibility Assessment of Cooked Potato Genotypes. Foods 2019, 8, 382 .

AMA Style

Christina E. Larder, Vahid Baeghbali, Celeste Pilon, Michèle M. Iskandar, Danielle J. Donnelly, Sebastian Pacheco, Stephane Godbout, Michael O. Ngadi, Stan Kubow. Effect of Non-Conventional Drying Methods on In Vitro Starch Digestibility Assessment of Cooked Potato Genotypes. Foods. 2019; 8 (9):382.

Chicago/Turabian Style

Christina E. Larder; Vahid Baeghbali; Celeste Pilon; Michèle M. Iskandar; Danielle J. Donnelly; Sebastian Pacheco; Stephane Godbout; Michael O. Ngadi; Stan Kubow. 2019. "Effect of Non-Conventional Drying Methods on In Vitro Starch Digestibility Assessment of Cooked Potato Genotypes." Foods 8, no. 9: 382.

Journal article
Published: 01 May 2018 in Atmospheric Pollution Research
Reads 0
Downloads 0
ACS Style

A.D. Larios; F. Chebana; S. Godbout; S.K. Brar; F. Valera; J.H. Palacios; A. Avalos Ramirez; F. Saldoval-Salas; J.P. Larouche; D. Medina-Hernández; L. Potvin. Analysis of atmospheric ammonia concentration from four sites in Quebec City region over 2010–2013. Atmospheric Pollution Research 2018, 9, 476 -482.

AMA Style

A.D. Larios, F. Chebana, S. Godbout, S.K. Brar, F. Valera, J.H. Palacios, A. Avalos Ramirez, F. Saldoval-Salas, J.P. Larouche, D. Medina-Hernández, L. Potvin. Analysis of atmospheric ammonia concentration from four sites in Quebec City region over 2010–2013. Atmospheric Pollution Research. 2018; 9 (3):476-482.

Chicago/Turabian Style

A.D. Larios; F. Chebana; S. Godbout; S.K. Brar; F. Valera; J.H. Palacios; A. Avalos Ramirez; F. Saldoval-Salas; J.P. Larouche; D. Medina-Hernández; L. Potvin. 2018. "Analysis of atmospheric ammonia concentration from four sites in Quebec City region over 2010–2013." Atmospheric Pollution Research 9, no. 3: 476-482.

Review article
Published: 03 April 2018 in Animal Nutrition
Reads 0
Downloads 0

Antibiotics are used to fight bacterial infections. However, a selective pressure gave rise to bacteria resistant to antibiotics. This leaves scientists worried about the danger to human and animal health. Some strategies can be borrowed to reduce the use of antibiotics in chicken farms. Much research has been carried out to look for natural agents with similar beneficial effects of growth promoters. The aim of these alternatives is to maintain a low mortality rate, a good level of animal yield while preserving environment and consumer health. Among these, the most popular are probiotics, prebiotics, enzymes, organic acids, immunostimulants, bacteriocins, bacteriophages, phytogenic feed additives, phytoncides, nanoparticles and essential oils.

ACS Style

Youcef Mehdi; Marie-Pierre Létourneau-Montminy; Marie-Lou Gaucher; Younes Chorfi; Gayatri Suresh; Tarek Rouissi; Satinder Kaur Brar; Caroline Côté; Antonio Avalos Ramirez; Stéphane Godbout. Use of antibiotics in broiler production: Global impacts and alternatives. Animal Nutrition 2018, 4, 170 -178.

AMA Style

Youcef Mehdi, Marie-Pierre Létourneau-Montminy, Marie-Lou Gaucher, Younes Chorfi, Gayatri Suresh, Tarek Rouissi, Satinder Kaur Brar, Caroline Côté, Antonio Avalos Ramirez, Stéphane Godbout. Use of antibiotics in broiler production: Global impacts and alternatives. Animal Nutrition. 2018; 4 (2):170-178.

Chicago/Turabian Style

Youcef Mehdi; Marie-Pierre Létourneau-Montminy; Marie-Lou Gaucher; Younes Chorfi; Gayatri Suresh; Tarek Rouissi; Satinder Kaur Brar; Caroline Côté; Antonio Avalos Ramirez; Stéphane Godbout. 2018. "Use of antibiotics in broiler production: Global impacts and alternatives." Animal Nutrition 4, no. 2: 170-178.

Journal article
Published: 01 September 2017 in Science of The Total Environment
Reads 0
Downloads 0

Torrefaction is proposed as a valorization process for non recycled cardboard. Torrefied cardboard was physically and chemically characterized and it was proposed for energy production and methane adsorption. The surface area and pore volume obtained were among 3.0-6.0m/g and 5.7·10-2.3·10cm/g, respectively. The carbon content increased with temperature and residence time of torrefaction. Oxidation kinetics of torrefied cardboard at different temperatures (250-300°C) and at different plateaus (60-120min) were tested. Torrefied cardboard was chemically treated with KOH in order to study the effect of K on thermal oxidation kinetics. It was observed that high torrefaction temperatures and residence times lead to a more stable char. Furthermore, kinetic parameters were obtained by iso-conversional methods and Coats and Redfern method. Attending to iso-conversional method, a decrease of E was observed with both, temperature and residence time of torrefaction. Whereas chemically treated presented highest E values than torrefied cardboard. In addition, regarding Coats and Redfern method, the oxidation model was not highly modified by torrefaction temperature and residence time. However, for chemically treated samples the oxidation model was modified by K presence. Finally, CH adsorption capacity of torrefied cardboard was studied at 30°C and atmospheric pressure. CH partial pressures tested were lower than 0.45kPa. It was observed that CH adsorption capacity increased with torrefaction time and decreased with chemical treatment. Thus, for the tested samples, the highest adsorption capacity observed was 5.70mgCH/g of sample.

ACS Style

B. Delgado; D. López González; S. Godbout; R. Lagacé; A. Giroir-Fendler; A. Avalos Ramirez. A study of torrefied cardboard characterization and applications: Composition, oxidation kinetics and methane adsorption. Science of The Total Environment 2017, 593-594, 406 -417.

AMA Style

B. Delgado, D. López González, S. Godbout, R. Lagacé, A. Giroir-Fendler, A. Avalos Ramirez. A study of torrefied cardboard characterization and applications: Composition, oxidation kinetics and methane adsorption. Science of The Total Environment. 2017; 593-594 ():406-417.

Chicago/Turabian Style

B. Delgado; D. López González; S. Godbout; R. Lagacé; A. Giroir-Fendler; A. Avalos Ramirez. 2017. "A study of torrefied cardboard characterization and applications: Composition, oxidation kinetics and methane adsorption." Science of The Total Environment 593-594, no. : 406-417.

Journal article
Published: 28 February 2017 in Energies
Reads 0
Downloads 0

Biomass pyrolysis and the valorization of co-products (biochar, bio-oil, syngas) could be a sustainable management solution for agricultural and forest residues. Depending on its properties, biochar amended to soil could improve fertility. Moreover, biochar is expected to mitigate climate change by reducing soil greenhouse gas emissions, if its C/N ratio is lower than 30, and sequestrating carbon if its O/Corg and H/Corg ratios are lower than 0.2 and 0.7, respectively. However, the yield and properties of biochar are influenced by biomass feedstock and pyrolysis operating parameters. The objective of this research study was to validate an approach based on the response surface methodology, to identify the optimal pyrolysis operating parameters (temperature, solid residence time, and carrier gas flowrate), in order to produce engineered biochars for carbon sequestration. The pyrolysis of forest residues, switchgrass, and the solid fraction of pig manure, was carried out in a vertical auger reactor following a Box-Behnken design, in order to develop response surface models. The optimal pyrolysis operating parameters were estimated to obtain biochar with the lowest H/Corg and O/Corg ratios. Validation pyrolysis experiments confirmed that the selected approach can be used to accurately predict the optimal operating parameters for producing biochar with the desired properties to sequester carbon.

ACS Style

Patrick Brassard; Stéphane Godbout; Vijaya Raghavan; Joahnn H. Palacios; Michèle Grenier; Dan Zegan. The Production of Engineered Biochars in a Vertical Auger Pyrolysis Reactor for Carbon Sequestration. Energies 2017, 10, 288 .

AMA Style

Patrick Brassard, Stéphane Godbout, Vijaya Raghavan, Joahnn H. Palacios, Michèle Grenier, Dan Zegan. The Production of Engineered Biochars in a Vertical Auger Pyrolysis Reactor for Carbon Sequestration. Energies. 2017; 10 (3):288.

Chicago/Turabian Style

Patrick Brassard; Stéphane Godbout; Vijaya Raghavan; Joahnn H. Palacios; Michèle Grenier; Dan Zegan. 2017. "The Production of Engineered Biochars in a Vertical Auger Pyrolysis Reactor for Carbon Sequestration." Energies 10, no. 3: 288.

Journal article
Published: 01 October 2015 in Energy
Reads 0
Downloads 0

SSCI-VIDE+CARE+AGFInternational audienceCombustion characteristics of two woody crops (BP (black spruce and Pinus banksiana mixtures) and W (willow)) and three herbaceous non-perennial energy crops (CR (common reed), RP (reed phalaris) and S (switchgrass)) were studied by means of TGA (thermogravimetric analysis) and DSC (differential scanning calorimetry) coupled with MS (mass spectrometry). The combustion process of these biomasses is divided into two stages: devolatilization and char oxidation. TGA data showed that sample BP had the best ignition characteristics (burnout temperature of 507 degrees C). However, DSC analysis demonstrated that samples W and RP released a higher amount of combustion heat (>8 kJ/g). Kinetics was evaluated assuming single separate reactions for each combustion stage using PMSM (pseudo multi-component separate-stage models). The process was successfully modeled obtaining the maximum error of +/- 3.35% for the sample S. CO, CO2 and H2O were the main components obtained during the combustion process. Nitrogen compounds (NO, NO2 and HCN) were found in higher proportions that sulfur compounds (SO and SO2). Nitrogen compounds were released in both combustion stages, whereas sulfur compounds evolved mainly in the low temperature range. Other pollutants were found in lower concentrations (CH3Cl and C6H6). (C) 2015 Elsevier Ltd. All rights reserved

ACS Style

D. López-González; A. Avalos-Ramirez; A. Giroir-Fendler; S. Godbout; M. Fernandez-Lopez; Luz Sanchez-Silva; Jose Luis Valverde. Combustion kinetic study of woody and herbaceous crops by thermal analysis coupled to mass spectrometry. Energy 2015, 90, 1626 -1635.

AMA Style

D. López-González, A. Avalos-Ramirez, A. Giroir-Fendler, S. Godbout, M. Fernandez-Lopez, Luz Sanchez-Silva, Jose Luis Valverde. Combustion kinetic study of woody and herbaceous crops by thermal analysis coupled to mass spectrometry. Energy. 2015; 90 ():1626-1635.

Chicago/Turabian Style

D. López-González; A. Avalos-Ramirez; A. Giroir-Fendler; S. Godbout; M. Fernandez-Lopez; Luz Sanchez-Silva; Jose Luis Valverde. 2015. "Combustion kinetic study of woody and herbaceous crops by thermal analysis coupled to mass spectrometry." Energy 90, no. : 1626-1635.

Journal article
Published: 24 July 2015 in Agriculture
Reads 0
Downloads 0

Agricultural producers are interested in using biomass available on farms to substitute fossil fuels for heat production. However, energy crops like reed canary grass contain high nitrogen (N), sulfur (S), potassium (K) and other ash-forming elements which lead to increased emissions of gases and particulate matter (PM) and ash-related operational problems (e.g., melting) during combustion. To address these problematic behaviors, reed canary grass was blended with wood (50 wt%) and fuel additives (3 wt%) such as aluminum silicates (sewage sludge), calcium (limestone) and sulfur (lignosulfonate) based additives. When burned in a top-feed pellet boiler (29 kW), the four blends resulted in a 17%–29% decrease of PM concentrations compared to pure reed canary grass probably because of a reduction of K release to flue gas. Nitrogen oxides (NOx) and sulfur dioxide (SO2) emissions varied according to fuel N and S contents. This explains the lower NOx and SO2 levels obtained with wood based products and the higher SO2 generation with the grass/lignosulfonate blend. The proportion of clinkers found in combustion ash was greatly lessened (27%–98%) with the use of additives, except for lignosulfonate. The positive effects of some additives may allow agricultural fuels to become viable alternatives.

ACS Style

Sébastien Fournel; Joahnn H. Palacios; Stéphane Godbout; Michèle Heitz. Effect of Additives and Fuel Blending on Emissions and Ash-Related Problems from Small-Scale Combustion of Reed Canary Grass. Agriculture 2015, 5, 561 -576.

AMA Style

Sébastien Fournel, Joahnn H. Palacios, Stéphane Godbout, Michèle Heitz. Effect of Additives and Fuel Blending on Emissions and Ash-Related Problems from Small-Scale Combustion of Reed Canary Grass. Agriculture. 2015; 5 (3):561-576.

Chicago/Turabian Style

Sébastien Fournel; Joahnn H. Palacios; Stéphane Godbout; Michèle Heitz. 2015. "Effect of Additives and Fuel Blending on Emissions and Ash-Related Problems from Small-Scale Combustion of Reed Canary Grass." Agriculture 5, no. 3: 561-576.

Journal article
Published: 08 June 2015 in Agriculture
Reads 0
Downloads 0

Apple pomace is a by-product from the apple processing industry and can be used for the production of many value-added compounds such as enzymes, proteins, and nutraceuticals, among others. An investigation was carried out to study the improvement in the protein content in apple pomace by solid-state fermentation using the fungus Phanerochaete chrysosporium by tray fermentation method. The effect of this protein in terms of how it enriched apple pomace as animal feed for pigs has also been studied. There was a 36% increase in protein content in the experimental diet with 5% w/w fermented apple pomace. The efficiency of conversion of ingested food was increased from 43.5 ± 2.5 to 83.1 ± 4.4 in the control group and the efficiency of conversion of feed increased from 55.4 ± 4.5 to 92.1 ± 3.6 in the experimental group during the animal feed experiment. Similarly, the effect of a protein enriched diet on odor emission and greenhouse gas emission has also been studied. The results demonstrated that the protein enrichment of apple pomace by solid state cultivation of the fungus P. chrysosporium makes it possible to use it as a dietary supplement for pigs.

ACS Style

Chandran M. Ajila; Saurabh J. Sarma; Satinder K. Brar; Stephane Godbout; Michel Cote; Frederic Guay; Mausam Verma; Jose R. Valéro. Fermented Apple Pomace as a Feed Additive to Enhance Growth Performance of Growing Pigs and Its Effects on Emissions. Agriculture 2015, 5, 313 -329.

AMA Style

Chandran M. Ajila, Saurabh J. Sarma, Satinder K. Brar, Stephane Godbout, Michel Cote, Frederic Guay, Mausam Verma, Jose R. Valéro. Fermented Apple Pomace as a Feed Additive to Enhance Growth Performance of Growing Pigs and Its Effects on Emissions. Agriculture. 2015; 5 (2):313-329.

Chicago/Turabian Style

Chandran M. Ajila; Saurabh J. Sarma; Satinder K. Brar; Stephane Godbout; Michel Cote; Frederic Guay; Mausam Verma; Jose R. Valéro. 2015. "Fermented Apple Pomace as a Feed Additive to Enhance Growth Performance of Growing Pigs and Its Effects on Emissions." Agriculture 5, no. 2: 313-329.

Journal article
Published: 01 March 2015 in Atmospheric Environment
Reads 0
Downloads 0
ACS Style

S. Fournel; J.H. Palacios; R. Morissette; J. Villeneuve; S. Godbout; M. Heitz; P. Savoie. Particulate concentrations during on-farm combustion of energy crops of different shapes and harvest seasons. Atmospheric Environment 2015, 104, 50 -58.

AMA Style

S. Fournel, J.H. Palacios, R. Morissette, J. Villeneuve, S. Godbout, M. Heitz, P. Savoie. Particulate concentrations during on-farm combustion of energy crops of different shapes and harvest seasons. Atmospheric Environment. 2015; 104 ():50-58.

Chicago/Turabian Style

S. Fournel; J.H. Palacios; R. Morissette; J. Villeneuve; S. Godbout; M. Heitz; P. Savoie. 2015. "Particulate concentrations during on-farm combustion of energy crops of different shapes and harvest seasons." Atmospheric Environment 104, no. : 50-58.

Journal article
Published: 01 March 2015 in Bioresource Technology
Reads 0
Downloads 0

A prediction model of gaseous emissions (CO, CO2, NOx, SO2 and HCl) from small-scale combustion of agricultural biomass fuels was developed in order to rapidly assess their potential to be burned in accordance to current environmental threshold values. The model was established based on calculation of thermodynamic equilibrium of reactive multicomponent systems using Gibbs free energy minimization. Since this method has been widely used to estimate the composition of the syngas from wood gasification, the model was first validated by comparing its prediction results with those of similar models from the literature. The model was then used to evaluate the main gas emissions from the combustion of four dedicated energy crops (short-rotation willow, reed canary grass, switchgrass and miscanthus) previously burned in a 29-kW boiler. The prediction values revealed good agreement with the experimental results. The model was particularly effective in estimating the influence of harvest season on SO2 emissions.

ACS Style

S. Fournel; B. Marcos; S. Godbout; M. Heitz. Predicting gaseous emissions from small-scale combustion of agricultural biomass fuels. Bioresource Technology 2015, 179, 165 -172.

AMA Style

S. Fournel, B. Marcos, S. Godbout, M. Heitz. Predicting gaseous emissions from small-scale combustion of agricultural biomass fuels. Bioresource Technology. 2015; 179 ():165-172.

Chicago/Turabian Style

S. Fournel; B. Marcos; S. Godbout; M. Heitz. 2015. "Predicting gaseous emissions from small-scale combustion of agricultural biomass fuels." Bioresource Technology 179, no. : 165-172.

Book chapter
Published: 13 January 2015 in Carbon Capture and Storage
Reads 0
Downloads 0
ACS Style

M. Verma; F. Pelletier; Satinder K. Brar; S. Godbout; R. D. Tyagi; Rao Y. Surampalli. Carbon Reuses for a Sustainable Future. Carbon Capture and Storage 2015, 195 -216.

AMA Style

M. Verma, F. Pelletier, Satinder K. Brar, S. Godbout, R. D. Tyagi, Rao Y. Surampalli. Carbon Reuses for a Sustainable Future. Carbon Capture and Storage. 2015; ():195-216.

Chicago/Turabian Style

M. Verma; F. Pelletier; Satinder K. Brar; S. Godbout; R. D. Tyagi; Rao Y. Surampalli. 2015. "Carbon Reuses for a Sustainable Future." Carbon Capture and Storage , no. : 195-216.

Comparative study
Published: 01 March 2014 in Bioresource Technology
Reads 0
Downloads 0

The aim of this study was to compare gaseous and particulate matter (PM) emissions from the combustion of agricultural (switchgrass, fast-growing willow and the dried solid fraction of pig manure) and forest (wood mixture of Black Spruce and Jack Pine) biomasses in a small-scale unit (17.58kW). Concentrations of CO2, CO, CH4, NO2, NH3, N2O, SO2, HCl, and H2O were measured by Fourier transform infrared spectroscopy and converted into emission rates. Opacity was also evaluated and particulates were sampled. Results showed significantly higher emissions of SO2, NO2 and PM with the combustion of agricultural biomass compared to the forest biomass. However, further studies should be carried out so regulations can be adapted in order to permit the combustion of agricultural biomass in small-scale combustion units.

ACS Style

Patrick Brassard; Joahnn H­. Palacios; Stéphane Godbout; Denis Bussières; Robert Lagacé; Jean-Pierre Larouche; Frédéric Pelletier. Comparison of the gaseous and particulate matter emissions from the combustion of agricultural and forest biomasses. Bioresource Technology 2014, 155, 300 -306.

AMA Style

Patrick Brassard, Joahnn H­. Palacios, Stéphane Godbout, Denis Bussières, Robert Lagacé, Jean-Pierre Larouche, Frédéric Pelletier. Comparison of the gaseous and particulate matter emissions from the combustion of agricultural and forest biomasses. Bioresource Technology. 2014; 155 ():300-306.

Chicago/Turabian Style

Patrick Brassard; Joahnn H­. Palacios; Stéphane Godbout; Denis Bussières; Robert Lagacé; Jean-Pierre Larouche; Frédéric Pelletier. 2014. "Comparison of the gaseous and particulate matter emissions from the combustion of agricultural and forest biomasses." Bioresource Technology 155, no. : 300-306.

Conference paper
Published: 14 November 2013 in Livestock Environment VI, Proceedings of the 6th International Symposium 2001
Reads 0
Downloads 0
ACS Style

S. Godbout; R.T. Zijlstra; S.P. Lemay; R. Joncas; J.P. Larouche; D.Y. Martin; J.F. Bernier; L. Chénard; A. Marquis; E.M. Barber And D. Massé; E.M. Barber; D. Masse. Oil Sprinkling and Dietary Manipulation to Reduce Odour and Gas Emissions from Swine Buildings - Laboratory Scale Experiment. Livestock Environment VI, Proceedings of the 6th International Symposium 2001 2013, 671 .

AMA Style

S. Godbout, R.T. Zijlstra, S.P. Lemay, R. Joncas, J.P. Larouche, D.Y. Martin, J.F. Bernier, L. Chénard, A. Marquis, E.M. Barber And D. Massé, E.M. Barber, D. Masse. Oil Sprinkling and Dietary Manipulation to Reduce Odour and Gas Emissions from Swine Buildings - Laboratory Scale Experiment. Livestock Environment VI, Proceedings of the 6th International Symposium 2001. 2013; ():671.

Chicago/Turabian Style

S. Godbout; R.T. Zijlstra; S.P. Lemay; R. Joncas; J.P. Larouche; D.Y. Martin; J.F. Bernier; L. Chénard; A. Marquis; E.M. Barber And D. Massé; E.M. Barber; D. Masse. 2013. "Oil Sprinkling and Dietary Manipulation to Reduce Odour and Gas Emissions from Swine Buildings - Laboratory Scale Experiment." Livestock Environment VI, Proceedings of the 6th International Symposium 2001 , no. : 671.

Journal article
Published: 15 June 2013 in Journal of Hazardous Materials
Reads 0
Downloads 0

The removal of chemical oxygen demand (COD), total nitrogen (TN) and total phosphorus (TP) at concentrations of 960 ± 38 to 2400 ± 96 mg/L, 143 ± 9 to 235 ± 15 mg/L and 25 ± 2 to 57 ± 4 mg/L, respectively, from the separated liquid phase of hog manure by the multi-zone BioCAST technology is discussed. Despite the inhibitory effect of hog waste toward microbial activities, removal efficiencies up to 89.2% for COD, 69.2% for TN and 47.6% for TP were obtained during 185 d of continuous operation. The free ammonia inhibition was postulated to be responsible for the steady reduction of COD and TP removal with the increase of TN/TP ratio from 3.6 to 5.8. On the contrary, the increase of COD/TN ratio from 4.8 to 14.1 improved the removal of all contaminants. Nitrogen removal did not show any dependence on the COD/TP ratio, despite the steady increase of COD and TP removal with this ratio in the range of 19.3–50.6. The removal efficiencies of organic and inorganic contaminants increased progressively owing to the adaptation of microbial biomass, resulting from the presence of suspended biomass in the mixed liquor that circulated continuously between the three zones of aerobic, microaerophilic and anoxic, as well as the attached biomass immobilized inside the aerobic zone.

ACS Style

Laleh Yerushalmi; Mahmood Alimahmoodi; Niema Afroze; Stephane Godbout; Catherine N. Mulligan. Removal of carbon, nitrogen and phosphorus from the separated liquid phase of hog manure by the multi-zone BioCAST technology. Journal of Hazardous Materials 2013, 254-255, 364 -371.

AMA Style

Laleh Yerushalmi, Mahmood Alimahmoodi, Niema Afroze, Stephane Godbout, Catherine N. Mulligan. Removal of carbon, nitrogen and phosphorus from the separated liquid phase of hog manure by the multi-zone BioCAST technology. Journal of Hazardous Materials. 2013; 254-255 ():364-371.

Chicago/Turabian Style

Laleh Yerushalmi; Mahmood Alimahmoodi; Niema Afroze; Stephane Godbout; Catherine N. Mulligan. 2013. "Removal of carbon, nitrogen and phosphorus from the separated liquid phase of hog manure by the multi-zone BioCAST technology." Journal of Hazardous Materials 254-255, no. : 364-371.