Influence of the cell wall of Chlamydomonas reinhardtii on anaerobic digestion yield and on its anaerobic co-digestion with a carbon-rich substrate

Fernández-Rodríguez, M. J.; Lama-Calvente, D. de la; Jiménez‐Rodríguez, Antonia; Borja, R.; Rincón, B.

doi:10.1016/j.psep.2019.05.041

Cited by 24 publications

(27 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The methane yield obtained during AD of 100% OMSW was 341 ± 22 mL CH 4 /g VS added. This value of methane yield obtained for the BMP test of OMSW was in accordance with previous studies[3,41,58]. After 30 days of experiment, the maximum methane yield obtained was 383 ± 2 mL CH 4 /g VS added for A1 pre-treatment.…”

supporting

confidence: 91%

See 1 more Smart Citation

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Fernández-Rodríguez

Lama-Calvente

Jiménez‐Rodríguez

et al. 2020

Biomass Conv. Bioref.

Self Cite

View full text Add to dashboard Cite

The aim of this study was to investigate the effect of a soft-hydrothermal pre-treatment (SHP) on olive mill solid waste (OMSW) and its subsequent anaerobic digestion (AD). OMSW was pre-treated in an autoclave at temperatures of 121 ºC and 133 ºC and excess pressures of 1.1 and 2.1 bars, respectively at heating times of 15, 20 and 30 minutes. The digestibility of pre-treated and untreated OMSW was determined in terms of methane potential through using biochemical methane potentials tests (BMP). An important solubilisation of high valuable compounds such us hydroxytyrosol, and 3,4dihydroxyphenylglycol was observed after pre-treatments. SHP showed a significant reduction on fiber length and width (p < 0.05). A higher polysaccharides solubilisation was observed in treatment at 121 ºC comparing with that observed at 133 ºC. SHP carried out at 121 ºC, 1.1 bar (30 min) (pre-treatment A1), allowed obtaining the highest methane yield (380 ± 5 mL CH 4 /g VS), which was 12.3% higher than that obtained for untreated OMSW. Pearson correlation (PEC) and Principal Component Analysis (PCA) were carried out. PEC showed a positive correlation with phenol vanillic acid and PCA grouped pre-treatment A1 with polysaccharides solubilization. The influence of the SHP conditions on the AD of OMSW was assessed through the monitoring of process performance and calculation of kinetic parameters by using the Transference Function model.

show abstract

supporting

confidence: 91%

“…The Transference Function (TF) model was applied to fit the experimental data of methane production during BMP tests (eq. 1) [39][40][41]:…”

Section: Kinetic Studymentioning

confidence: 99%

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Fernández-Rodríguez

Lama-Calvente

Jiménez‐Rodríguez

et al. 2020

Biomass Conv. Bioref.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The nitrogen-rich co-substrates such as microalgae help to balance the carbon/nitrogen (C/N) ratio in the co-substrate mixture, as well as macro and micronutrients, pH, inhibitors/toxic compounds and also accelerating the hydrolysis process. As a result of the codigestion mixture of OMSW with different microalgae an improvement in biogas production was previously reported (Fernández-Rodríguez et al, 2014;Fernández-Rodríguez et al, 2019).…”

Section: Introductionmentioning

confidence: 80%

“…Anaerobic reactors were inoculated with biomass obtained from an industrial up-flow anaerobic sludge blanket reactor for wastewater from a brewery located in Seville (Spain). The inoculum was chosen due to its high methanogenic activity, which was determined in previous anaerobic assays (Fernández-Rodríguez et al, 2019).…”

Section: Substrates and Inoculummentioning

confidence: 99%

Evolution of control parameters in biochemical methane potential tests of olive mill solid waste (OMSW), thermal pre-treated OMSW, and its co-digestion with Dunaliella salina

et al. 2020

Self Cite

View full text Add to dashboard Cite

The aim of the present work was to compare the mesophilic anaerobic digestion of untreated olive mill solid waste (OMSW), soft hydrothermal pre-treated OMSW (SHP OMSW) and a co-digestion mixture of 95% OMSW and 5% microalga Dunaliella salina (Co-OMSW). During the co-digestion experiment, the volatile fatty acid accumulation decreased in comparison with that obtained for OMSW and SHP OMSW, reducing the slight inhibition observed during the OMSW and SHP OMSW experiments. Final values of methane yield of 380±1 mL CH4 g -1 VSadded for the OMSW, 424±2 mL CH4 g -1 VSadded for the SHP OMSW and 491±1 mL CH4 g -1 VSadded for the co-OMSW were determined. Two mathematical models, first-order kinetics and modified Gompertz model, were employed to fit the experimental data with the aim of elucidating the anaerobic biodegradation and obtain the kinetic constants. Both models allowed for adequately fitting the experimental results of methane production with time. The kinetic constant, k, of the first-order model increased by 12% for the Co-OMSW compared with the values achieved for OMSW and SHP OMSW. The modified Gompertz model revealed that the maximum methane production rate, Rm, for the Co-OMSW and SHP OMSW increased by 34.7% and 10.3% compared to the value obtained for OMSW.

show abstract

“…Methane yield values reported in the literature for the BMP of OMSW without any pre-treatment varied in a wide range from 154 mL CH 4 /g VS 26 to 415 mL CH 4 /g VS, 32 although most of the reported values are closed to the average methane yield value of 287 ± 75 mL CH 4 /g VS ( Table 1). The average methane yield value for BMP of thermally pre-treated OMSW is 307 ± 40 mL CH 4 /g VS, which is just a slight enhancement respect the AD of OMSW without pre-treatments, i.e.…”

Section: Review Of the Anaerobic Digestion Of Omswmentioning

confidence: 99%

Is anaerobic digestion a feasible alternative to the combustion of olive mill solid waste in terms of energy production? A critical review

Serrano

Gómez²,

Fermoso

et al. 2020

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

The use of olive mill solid waste (OMSW) for energy production has been promoted mainly through combustion processes. However, the European Union promotes the substitution of combustion in favour of greener alternatives. Several publications have stated that the energy obtained from anaerobic digestion (AD) is a feasible waste-toenergy technology for OMSW. However, the question of which energetic method, AD or combustion, is better for the energetic valorisation of OMSW has lacked of a reliable energy balance that can answer it. The present research work aims to answer this question by evaluating the energetic potential of the biomethanization of OMSW, in comparison with the current combustion technology, based on the review of the available scientific literature. The present analysis demonstrates that AD of OMSW can generate a net energy production in the same range than the obtained by the OMSW combustion, enabling the AD as a greener alternative to combustion but not clearly offering a surplus of energy production.

show abstract

Influence of the cell wall of Chlamydomonas reinhardtii on anaerobic digestion yield and on its anaerobic co-digestion with a carbon-rich substrate

Cited by 24 publications

References 33 publications

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Evolution of control parameters in biochemical methane potential tests of olive mill solid waste (OMSW), thermal pre-treated OMSW, and its co-digestion with Dunaliella salina

Is anaerobic digestion a feasible alternative to the combustion of olive mill solid waste in terms of energy production? A critical review

Contact Info

Product

Resources

About