Effect of increasing proportions of lignocellulosic cosubstrate on the single-phase and two-phase digestion of readily biodegradable substrate

Ganesh, Rangaraj; Torrijos, Michel; Sousbie, Philippe; Lugardon, Aurelien; Steyer, Jean-Philippe; Delgenès, J. P.

doi:10.1016/j.biombioe.2015.05.019

Cited by 8 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The concentration of solids in the FVW mixture was similar to the ones found in the literature [8,12], showing high values for moisture and volatile compounds (TS: 129 g kg -1 ; VS: 121 g kg -1 ). These characteristics indicate the potential for biological treatment, fitting AD for waste treatment and bioenergy production.…”

Section: Substrate and Inoculum Characteristicssupporting

confidence: 85%

“…The operation of mono-digestion using FVW as a single substrate is often reported as an unstable process because of simple sugar degradation, volatile fatty acids (VFA) accumulation, and subsequently, fast system acidification. The AD of FVW used as a single substrate has been limited to an organic loading rate (OLR) under 3.5 gVS L -1 d -1 [8,9,10]. Several studies have described the AD of FVW [10,11,12], but only a few have used FVW as a single substrate.…”

Section: Introductionmentioning

confidence: 99%

“…However, more complex and expensive treatment plants are required for this sort of operation. Ganesh et al [8] and Shen et al [15] evaluated the AD of FVW in both single-stage and two-stage reactors and reported the advantages of single-stage digestion due to simpler operation requirements, higher methane yields, and better economic benefits.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion

Edwiges

Frare

Alino

et al. 2018

Environmental Technology

View full text Add to dashboard Cite

The anaerobic digestion (AD) of a high diversity blend of fruit and vegetable waste (FVW) generated in tropical conditions as a single substrate was performed. A continuously stirred tank reactor (CSTR) operated in semi-continuous regime was used for AD. The reactor performance was monitored with gradually increasing organic loading rates (OLRs) from 0.5 up to 5.0 gVS L d. The biochemical methane potential (BMP) of FVW determined by batch bottles was 360 L CH kg, with a biodegradability of 79%. A stable pH with an adequate level of buffering capacity was observed during the entire experiment. Methane yield indicated the best performance at an OLR of 3.0 gVS L d, with 285 L CH kg added, reaching 79% of BMP. At an OLR over 3.0 gVS L d accumulation of volatile fatty acids (VFA) was detected; in particular, propionic acid was monitored, and a decreased methane yield was detected. Biogas production rate was 1.55 L L d and showed linear increase according to increases in the OLR.

show abstract

Section: Substrate and Inoculum Characteristicssupporting

confidence: 85%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion

Edwiges

Frare

Alino

et al. 2018

Environmental Technology

View full text Add to dashboard Cite

show abstract

“…From the observation, a correlation R 2 = 0.53 (p value < 0.1) exists between cow manure percentage in the feedstock and the COD concentration. Having a larger sample size made it possible to confirm the observations made by Akhiar et al [13] with 11 digestates, which also confirmed a study by Ganesh et al [55] where the increase of cow manure proportions in the feed led to higher COD concentration in the liquid fractions of digestates. It was also observed that higher energy crops' proportion in the feedstock may possibly influence the COD concentration in the liquid fractions of digestates with R 2 = 0.24 (p value < 0.1) (Figure 5).…”

Section: Influence Of Feedstock Composition On Digestate Characteristicssupporting

confidence: 81%

Correlations between the Composition of Liquid Fraction of Full-Scale Digestates and Process Conditions

et al. 2021

Self Cite

View full text Add to dashboard Cite

Fast development of centralized agricultural biogas plants leads to high amounts of digestate production. The treatment and disposal of liquid fractions after on-site digestate solid–liquid separation remains problematic due to their high organic, nutrient and aromatic contents. This work aims to study the variability of the remaining compounds in the digestate liquid fractions in relation to substrate origin, process parameters and solid–liquid separation techniques. Twenty-nine digestates from full-scale codigestion biogas plants and one waste activated sludge (WAS) digestate were collected and characterized. This study highlighted the combined effect of the solid–liquid separation process and the anaerobic digestion feedstock on the characteristics of liquid fractions of digestates. Two major clusters were found: (1) liquid fractions from high efficiency separation process equipment (e.g., centrifuge and others with addition of coagulant, flocculent or polymer) and (2) liquid fractions from low efficiency separation processes (e.g., screw press, vibrating screen and rotary drum), in this latter case, the concentration of chemical oxygen demand (COD) was associated with the proportion of cow manure and energy crops at biogas plant input. Finally, SUVA254, an indicator for aromatic molecule content and the stabilization of organic matter, was associated with the hydraulic retention time (HRT).

show abstract

Recovery of Biohydrogen and Biomethane by Anaerobic Fermentation of Organic Solid Waste

Qin

Zhu

2022

Production of Biofuels and Chemicals From Sustainable Recycling of Organic Solid Waste

View full text Add to dashboard Cite

Effect of increasing proportions of lignocellulosic cosubstrate on the single-phase and two-phase digestion of readily biodegradable substrate

Cited by 8 publications

References 30 publications

Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion

Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion

Correlations between the Composition of Liquid Fraction of Full-Scale Digestates and Process Conditions

Recovery of Biohydrogen and Biomethane by Anaerobic Fermentation of Organic Solid Waste

Contact Info

Product

Resources

About