Kinetics of methane production from the codigestion of switchgrass and Spirulina platensis algae

El‐Mashad, Hamed M.

doi:10.1016/j.biortech.2012.12.183

Cited by 147 publications

(57 citation statements)

References 25 publications

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“…There is relatively little data on the switchgrass biomass as an energy source to produce methane. El-Mashad (2013) reported that the methane yield of switchgrass was 126.69 and 166.71 ml g -1 of volatile solids at mesophilic and thermophilic temperatures, respectively. There it should be noted that in the aforesaid study switchgrass was harvested in the post killing frost stage and air dried and authors indicated that another N-rich feedstock is needed to increase the yield of methane production from switchgrass.…”

Section: Resultsmentioning

confidence: 99%

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Butkutė

Lemežienė

Cesevičienė

et al. 2013

Zemdirbyste-Agriculture

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Approaching switchgrass (Panicum virgatum L.) as a multifunctional energy plant, it is important to comprehensively study the composition and partitioning of organic substances in the biomass. The character of carbohydrates and lignin concentration variation was assessed in switchgrass biomass cut at two maturity stages (heading and seed filling) in the first and second harvest years. Quality components partitioning in the biomass of aboveground plant parts was examined in leaves, stems and panicles of the most productive switchgrass accessions cut at seed filling. The concentrations of lignocellulose (NDF), cellulose (Cel), sum of structural carbohydrates (holocellulose -HoCel), sum of nonstructural and structural carbohydrates (ΣCH 2 O) and lignin in switchgrass biomass of both plant development stages in the second harvest year were significantly higher, whereas an average hemicellulose (HCel) concentration was significantly lower compared with the respective parameters in the first harvest year. The concentrations of nonstructural carbohydrates (NSC) and their individual fractions (water soluble carbohydrates (WSC) and starch) in biomass were similar both in the first and second harvest years. The concentrations of NDF, Cel, HoCel and ΣCH 2 O and particularly lignin at seed filling were significantly higher compared with the respective data at heading in both harvest years. High lignin concentration (105 g kg -1 dry matter (DM)) in switchgrass biomass at seed filling in the second harvest year showed its great suitability for solid biofuel production. Considerable amount of ΣCH 2 O (693-742 g kg -1 DM) indicated that switchgrass biomass at this stage fits for the second-generation bioethanol production. At heading, switchgrass in the second harvest year produced quite a high NSC yield (an average 28.4 g plant -1 ) and low lignin output (an average 19.3 g plant -1 ), which is a favourable feature of feedstock for biogas production, biomass at seed filling is less suitable for that than at heading. Switchgrass plant part significantly (P < 0.01) affected the concentration of all biomass quality attributes tested, but did not affect HCel concentration. Accessions' DM yield correlated positively with NDF (r = 0.781, P < 0.05), Cel (r = 0.882, P < 0.01) and lignin (r = 0.517) and negatively with WSC and NSC (r = −0.982, −0.959; P < 0.01).

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Section: Resultsmentioning

confidence: 99%

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Butkutė

Lemežienė

Cesevičienė

et al. 2013

Zemdirbyste-Agriculture

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“…1b). Co-digestion can be used for controlling the substrate C/N ratio (Wang et al, 2012;El-Mashad, 2013;Zhong et al, 2013), but in their experiments, the total VS loading and the volume of the substrate were constant. The substrate having a high nitrogen content ratio was diluted for setting this condition when the co-substrate was digested.…”

Section: Continuous Experimentsmentioning

confidence: 99%

Comparative performance of mesophilic and thermophilic anaerobic digestion for high-solid sewage sludge

Hidaka

Wang

Togari

et al. 2013

Bioresource Technology

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“…Previous studies have focused on anaerobic digestion of algal biomass (e.g., microalgae Scenedesmus, Nannochloropsis, Chlamydomonas, Chlorella, Euglena, Phaeodactylum, Arthrospira, Dunaliella, Microcystis, and macroalgae Ulva, Palmaria, Sargassum) [76,[121][122][123][124][125][126][127][128][129][130][131][132][133][134][135][136]. The theoretical methane yield for carbohydrates, proteins, and lipids in algal biomass are 415 mL CH 4 /g carbohydrates, 851 mL CH 4 /g proteins, and 1014 mL CH 4 /g lipids, respectively [18].…”

Section: Comparison Of Single-stage Anaerobic Digestion and Dark Fermmentioning

confidence: 99%

Fermentative hydrogen production using algal biomass as feedstock

Xia

Cheng

et al. 2015

Renewable and Sustainable Energy Reviews

121

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Kinetics of methane production from the codigestion of switchgrass and Spirulina platensis algae

Cited by 147 publications

References 25 publications

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Comparative performance of mesophilic and thermophilic anaerobic digestion for high-solid sewage sludge

Fermentative hydrogen production using algal biomass as feedstock

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