Evaluation of hydrogen and methane production from municipal solid wastes with different compositions of fat, protein, cellulosic materials and the other carbohydrates

Kobayashi, Takuro; Xu, Kai; Li, Yu You; Inamori, Yuhei

doi:10.1016/j.ijhydene.2012.05.044

Cited by 66 publications

(28 citation statements)

References 21 publications

(28 reference statements)

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“…In a previous study, it was found that lipid/protein rich feedstocks showed higher methane yields than cellulose-rich ones [22]. Koyama et al [10] observed a negative correlation between methane yield and lignin content among several submerged aquatic weeds.…”

Section: Screening Of Submerged Aquatic Weed Species Used For Anaerobmentioning

confidence: 96%

Characterization of Anaerobic Degradability and Kinetics of Harvested Submerged Aquatic Weeds Used for Nutrient Phytoremediation

Kobayashi

et al. 2014

Energies

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In this study, eight different submerged aquatic species were screened by batch biochemical methane potential and anaerobic degradability tests to identify a promising/suitable feedstock. Kinetics of the best-screened substrate were studied in a mesophilic semi-continuous experiment. The aquatic species Myriophyllum aquaticum, Egeria densa and Potamogeton perfoliatus showed relatively higher methane yields of over 400 NmL/g-VS (volatile solids). Semi-continuous operation was carried out by feeding E. densa for over 400 days. The achieved results were 33%-53% chemical oxygen demand (COD) reduction and methane yield of 126-231 NmL/g-VS with a short hydraulic retention time (HRT). Additionally, the NH4 + and PO4 3− releases from the biomass to water were found to be low (18%-27% and 2.5%-3.9%) throughout the experiment. Hydrolysis was the limiting step in the digestion of E. densa, regardless of changes in HRT (15-45 days). The acid-phase model indicated that the hydrolysis rate constant (kh) of E. densa was 0.058 one/day, which was one third lower the kh value of food waste, but quite similar to cow manure. OPEN ACCESSEnergies 2015, 8 305

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Section: Screening Of Submerged Aquatic Weed Species Used For Anaerobmentioning

confidence: 96%

Characterization of Anaerobic Degradability and Kinetics of Harvested Submerged Aquatic Weeds Used for Nutrient Phytoremediation

Kobayashi

et al. 2014

Energies

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“…Starch digestion tends to produce hydrogen and butyrate, whereas lipid and protein digestions tend to produce propionate and valerate, respectively. These digestion processes occur simultaneously under most conditions [11,44]. C6H12O6 → CH3COOH + 1/2CH3(CH2)COOH + 3H2 + 2CO2 (4)…”

Section: Process Optimization and Verification Of The Modelmentioning

confidence: 99%

“…Dark fermentation with a single substrate, such as crop residue, food waste, or livestock waste, has attracted considerable attention [11][12][13][14]. However, the main disadvantage is that the fermentation 2 of 13 equilibrium can be disturbed by the accumulation of volatile fatty acids (VFAs), high ammonia nitrogen concentrations, or trace elements shortage [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Cattle Manure and Food Waste Co-Digestion for Biohydrogen Production in a Mesophilic Semi-Continuous Process

Liu

Zheng

et al. 2020

Energies

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Biohydrogen production from organic solid waste has shown particular advantages over other methods owing to the combination of waste reduction and bioenergy production. In this study, biohydrogen production from the co-digestion of cattle manure and food waste was optimized in a mesophilic semi-continuous process. To maximize hydrogen production, the effects of the mixing ratio (the proportion of food waste in the substrate), substrate concentration, and hydraulic retention time (HRT) on the co-digestion were systematically analyzed using a Box–Behnken design. The results showed that strong interactive effects existed between the three factors, and they had a direct effect on the responses. Hydrogen was primarily produced via the butyrate pathway, which was accompanied by the competing heterolactic fermentation pathway. Propionate and valerate produced from lipids and proteins, respectively, were obtained along with butyrate. The optimal process parameters included a mixing ratio of 47% to 51%, a substrate concentration of 76 to 86 g L−1, and an HRT of 2 d. Under these optimal conditions, the hydrogen production rate and hydrogen yield were higher than 1.00 L L−1 d−1 and 30.00 mL g−1 VS, respectively, and the predicted results were consistent with the experimental data. The results indicate that the co-digestion of cattle manure and food waste is a practical and economically promising approach for biohydrogen production.

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“…However, studies on hydrogen production using pure amino acids or proteins as substrates by dark fermentation are limited [59]. Kobayashi et al reported that biomass with abundant proteins but little carbohydrates (e.g., waste eggs) hardly produces hydrogen during dark fermentation [60]. Xia et al reported that hydrogen yield is almost zero when pure glutamic acid is used as sole substrate during dark fermentation [59].…”

Section: Metabolism Of Proteins In Dark Fermentationmentioning

confidence: 99%

Fermentative hydrogen production using algal biomass as feedstock

Xia

Cheng

et al. 2015

Renewable and Sustainable Energy Reviews

119

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Evaluation of hydrogen and methane production from municipal solid wastes with different compositions of fat, protein, cellulosic materials and the other carbohydrates

Cited by 66 publications

References 21 publications

Characterization of Anaerobic Degradability and Kinetics of Harvested Submerged Aquatic Weeds Used for Nutrient Phytoremediation

Characterization of Anaerobic Degradability and Kinetics of Harvested Submerged Aquatic Weeds Used for Nutrient Phytoremediation

Optimization of Cattle Manure and Food Waste Co-Digestion for Biohydrogen Production in a Mesophilic Semi-Continuous Process

Fermentative hydrogen production using algal biomass as feedstock

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