Methane production from anaerobic digestion of date palm leaflet waste in Morocco

Kerrou, Omar; Lahboubi, Nabila; Bakraoui, Mohammed; Karouach, Fadoua; Gnaoui, Yasser El; Schüch, Andrea; Stinner, Walter; Bari, Hassan El

doi:10.1007/s10163-021-01238-z

Cited by 10 publications

(3 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As depicted in Table 1, the H-S-W 50 group obtained the highest methane production rate with 11.63 ± 1.87 mL CH 4 /(g VSS•d), 11.7% higher than that in Control. The 4% reduction of H-S-W 50 compared with H-S-W 400 in the delay period (3.85 ± 0.23 vs. 4.01 ± 0.38) also confirmed the positive stimulating role of SRB-HPA with a suitable dosage ratio [23]. Since a subtle marginal of 4 ± 0.1% was shown between H-S-W 100 and H-S-W 50 in methane production, H-S-W 100 was chosen as the optimal dosage from economic and environmental prospection.…”

Section: Overall Performance Of Methane Production By Hpa-srb-mediationsupporting

confidence: 52%

Syntrophic Jiont of Sulfate-Reducing Bacteria and Hydrogen-Producing Acetogen Stimulated Methane Production from Waste Activated Sludge Digestion

Wu,

Zhou,

Duan

et al. 2024

Fermentation

View full text Add to dashboard Cite

Anaerobic digestion of waste-activated sludge (WAS) towards biogas recovery is constrained by the limited hydrolysis and inhibited acetogenesis steps that hinder subsequent energy recovery. This study employed Fe(VI)/S(IV) oxidation to enhance the WAS solubilization and coupled it with the syntrophic interaction of hydrogen-producing acetogen (HPA) and sulfate-reducing bacteria (SRB) to stimulate the successive procedure towards methane production. Results showed that the dosage ratio of HPA-SRB to WAS (H-S-W) with 1:1:50 outperformed with the highest methane production potential (11.63 ± 1.87 mL CH4/(g VSS·d). Meanwhile, the efficient and sequential process from acetogenesis to methanogenesis stimulated by HPA-SRB was evidenced by a significant decrease of 30.2% in the acetate concentration. The microbial community structure further manifested the crucial role of HPA-SRB with increased abundance of Desulfobulbus (2.07%), Syntrophomonas (1.24%) and Smithella (1.63%), which stimulated acetophilic methanogen boost with Methanobacterium dominating with 77.51% in H-S-W100. Furthermore, the positive syntrophic relationships among HPA-SRB and acetophilic methanogens towards methane production were confirmed via molecular ecological network and canonical correspondence analysis. This study highlighted the syntrophic cooperation of the mixed consortia of HPA and SRB on methane production based on Fe(VI)/S(IV) pretreatment and provided the theoretical and technical basis for the potential implementation of novel methanogenesis technology for WAS treatment.

show abstract

Section: Overall Performance Of Methane Production By Hpa-srb-mediationsupporting

confidence: 52%

Syntrophic Jiont of Sulfate-Reducing Bacteria and Hydrogen-Producing Acetogen Stimulated Methane Production from Waste Activated Sludge Digestion

Wu,

Zhou,

Duan

et al. 2024

Fermentation

View full text Add to dashboard Cite

show abstract

“…Generally speaking, anaerobic batch tests utilizing the accepted methodology were used to calculate the methane yield . Some studies have used theoretical equations (Lahboubi et al, 2022;Lahboubi et al, 2021;Kerrou et al, 2021) to calculate theoretical methane production. The theoretical methane production (TMP) for AD was calculated using the Buswell equation.…”

Section: Introductionmentioning

confidence: 99%

Energetic Potential of Coffee Waste from Anaerobic Digestion and Combustion

Lahcen¹,

Ahmed²,

Lahboubi³

et al. 2023

Ecol. Eng. Environ. Technol.

View full text Add to dashboard Cite

Coffee is present in every street in the world and is without a doubt one of the most consumed beverages. Moreover, it is the third most consumed drink in the world. Recent estimations from the International Coffee Organization put. The world coffee production at about 6 million tons per year. Its uncontrolled disposal can cause environmental problems, but if handled properly, it can be processed into pellets, and used as an energy source.In the present study, the production of energy from coffee waste (CW) is an interesting alternative to traditional production lines. The objective of this study is to calculate the energetic potential (Ep), which can be generated by anaerobic digestion (AD) and thermochemical conversion (TC), of the organic fraction of CW in the city of Kenitra, Morocco. An elementary analysis allows us to estimate the calorific value by the TC. The lower and higher calorific values were estimated to be: 18.71 and 20.28 MJ/Kg, respectively. Ep results by AD and CT were 0.25 and 1.3 MWh/t, respectively.

show abstract

“…Similarly, many wastewater systems lack growth nutrients and demand their addition prior to anaerobic treatment. Given the distinct roles that macro-and micronutrients play in the growth of crops, growth media should include both types of nutrients (Li et al, 2022).The studies carried out on anaerobic digestion for the evaluation growth media and consequently the improvement of the performance of growth media were supported by kinetic studies that became famous in the field of bacterial growth to estimate the cumulative biogas rate and lag phase and quickly understand the useful production of biogas (Kerrou et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Effect of Biological Pretreatment on Anaerobic Sewage Sludge Digestion: Using Growth Media for Methanogenic Bacteria and Kinetic Studies for Biogas Yield

Lihi,

Auajjar,

Hamdi

et al. 2023

J. Ecol. Eng.

View full text Add to dashboard Cite

The valorization of sewage sludge, a by-product of wastewater treatment by anaerobic digestion (AD), is getting more attention as a result of the advantages it provides for the environment and economy. The current investigation is an experiment performed in a lab setting using a batch-operated anaerobic digestion reactor with a mesophilic temperature of 35°C. This study examined the generation of experimental biogas and biodegradability .The effect of pretreatment by methanogenic bacteria growth medium on anaerobic digestion of sewage sludge was studied on three different concentrations of growth media, a control, and a low, medium and high concentration of culture medium, with cumulative biogas production of 610N ml /gVS added, 750 N ml /gVS added, 900 N ml /gVS added, 10 N ml /gVS added, respectively, with biodegradability rate of 52.16%, 56.5%, 74.04%, 28.70% respectively. Biogas production was enhanced at a medium concentration of culture medium and inhibited at a high concentration during anaerobic digestion of sewage sludge. Additionally, a theoretical biogas estimate was evaluated using four kinetic models (Logistic function, Modified Gompertz, Transference function, and First order); which were utilized to match the experimental biogas generation process involving the anaerobic digestion of untreated and pretreated sewage sludge by various concentrations of growth media of methanogenic bacteria . The kinetic findings demonstrated that both models, Modified Gompertz and Logistic function, were useful for predicting biogas output and matched experimental biogas production.

show abstract

Methane production from anaerobic digestion of date palm leaflet waste in Morocco

Cited by 10 publications

References 31 publications

Syntrophic Jiont of Sulfate-Reducing Bacteria and Hydrogen-Producing Acetogen Stimulated Methane Production from Waste Activated Sludge Digestion

Syntrophic Jiont of Sulfate-Reducing Bacteria and Hydrogen-Producing Acetogen Stimulated Methane Production from Waste Activated Sludge Digestion

Energetic Potential of Coffee Waste from Anaerobic Digestion and Combustion

Effect of Biological Pretreatment on Anaerobic Sewage Sludge Digestion: Using Growth Media for Methanogenic Bacteria and Kinetic Studies for Biogas Yield

Contact Info

Product

Resources

About