Fuel, Journal Year: 2024, Volume and Issue: 381, P. 133330 - 133330
Published: Oct. 5, 2024
Language: Английский
Energies, Journal Year: 2025, Volume and Issue: 18(5), P. 1033 - 1033
Published: Feb. 20, 2025
This study presents the technological, technical, and economic basis of solution developed by authors for production biomethane based on pretreatment organic substrates at low temperature using solidified CO2 captured during biogas upgrading in a closed cycle (TeCH4BiogasUp). TeCH4BiogasUp integrates disintegration substrates, sequestration utilization cycle. The multifunctional hybrid nature sets it apart from other available solutions that only perform selected, individual technological processes. is significant advantage competitive market edge; however, also poses challenges conducting comparative analyses with existing market. technology has been compared traditional substrate techniques purification technologies. Considering origin CO2, this method can be regarded as material recycling, which aligns fully principles circular economy. supports reduction emissions capturing introducing into process. novel approach to largely overcomes previous limitations associated profitability could serve viable alternative methods, particularly light trends imperative reduce through development renewable energy sources.
Language: Английский
Citations
0
International Biodeterioration & Biodegradation, Journal Year: 2025, Volume and Issue: 202, P. 106094 - 106094
Published: April 14, 2025
Language: Английский
Citations
0
Molecules, Journal Year: 2023, Volume and Issue: 28(9), P. 3883 - 3883
Published: May 4, 2023
Anaerobic digestion (AD) is a triple-benefit biotechnology for organic waste treatment, renewable production, and carbon emission reduction. In the process of anaerobic digestion, pH, temperature, load, ammonia nitrogen, VFAs, other factors affect fermentation efficiency stability. The balance between generation consumption volatile fatty acids (VFAs) in key to stable AD operation. However, accumulation VFAs frequently occurs, especially propionate, because its oxidation has highest Gibbs free energy when compared VFAs. order solve this problem, some strategies, including buffering addition, suspension feeding, decreased loading rate, so on, have been proposed. Emerging methods, such as bioaugmentation, supplementary trace elements, addition electronic receptors, conductive materials, degasification dissolved hydrogen, recently researched, presenting promising results. But efficacy these methods still requires further studies tests regarding full-scale application. main objective paper provide comprehensive review mechanisms propionate generation, metabolic pathways influencing during process, recent literature experimental research related various strategies enhancing biodegradation. issues that must be addressed future focus are identified, potential directions development predicted.
Language: Английский
Citations
10
Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144756 - 144756
Published: July 13, 2023
Language: Английский
Citations
10
Sustainability, Journal Year: 2023, Volume and Issue: 15(5), P. 4548 - 4548
Published: March 3, 2023
Anaerobic digestion (AD) is widely used for the sustainable treatment of biological wastes and production biogas. Its byproduct, digestate, a valuable organic waste needs appropriate management, which one major concerns with negative impact on efficiency biogas installations. One approach to extend utilization digestate as well improve its handling storage characteristics compaction into pellets. This study aimed evaluate behavior during cyclic loading unloading in closed matrix. The findings presented here may provide insights mechanisms pellet formation optimizing pellets improving their management. can be considered novel it applied loading, first time, view densification modeling pelleting prediction. A Zwick universal machine was experiments. moisture content found 10–22%. Samples were loaded constant amplitude 20 kN 10 cycles. distribution energy inputs, including total energy, permanent deformations, lost elastic ones, thoroughly evaluated. decrease observed cycle, cycles 2–10, after all due rise digestate. Similar relations also nonrecoverable part. In subsequent loading/unloading, values deformation fell asymptotically. most noteworthy that absolute consistent across levels. However, noted percentage dissipated significantly increased increased. Loading, contributed identified key factor causing an increase cumulative majority expended dissipated. Dissipated only component permanently altered required compaction. Another important finding, resulted from analysis successive courses curves, shape areas enclosed between loading/unloading curves influenced by
Language: Английский
Citations
9
Renewable Energy, Journal Year: 2024, Volume and Issue: 231, P. 120900 - 120900
Published: June 28, 2024
Language: Английский
Citations
3
Energy, Journal Year: 2023, Volume and Issue: 288, P. 129595 - 129595
Published: Nov. 6, 2023
Language: Английский
Citations
7
Energies, Journal Year: 2024, Volume and Issue: 17(11), P. 2490 - 2490
Published: May 22, 2024
Biogas upgrading via biomethanation has been extensively studied recently, but the influence of organic loading rate on process performance remains to be fully understood. This is particularly significant because both and hydrogen injection can lead volatile fatty acid accumulation during anaerobic digestion. study investigated impact a wide range rates (from 1.25 3.25 g VS/L/d) consumption rates, accumulation, microbial communities in situ biomethanation. It also provided kinetics data metabolite production for different control reactors, including digestion, ex biomethanation, endogenous reactors. Hydrogen was injected into parallel batch reactors using digestate from semi-continuous lab-scale reactor subjected increasing (1.25–3.25 as an inoculum. The inoculum well adapted each tested rate. experiments were replicated following 12 h starvation period assess stability rates. High values resulted increased peaking at 68 mg COD/L/h VS/L/d (maximum value tested), with no despite high partial pressures. maintained after period. Furthermore, addition substrate did not (i.e., similar). A higher relative abundances hydrogenotrophic methanogens Methanospirillum sp.). highlights that accelerate consequently reducing capital operational costs.
Language: Английский
Citations
2
Industrial Crops and Products, Journal Year: 2023, Volume and Issue: 204, P. 117249 - 117249
Published: Aug. 3, 2023
So far, there are few sustainable alternatives to manage the exhausted olive pomace (EOP), a dangerous waste produced by oil sector. In this work, EOP resulting from organosolv pretreatment was submitted conventional anaerobic digestion (mono-AD) or co-digestion with sewage sludge (co-AD) at different ratios using pilot-scale stirred tank reactor. Firstly, it observed that shortening of acclimation phase improved performance allowing methane specific productivity 575.15 LCH4 kg VS−1 d−1. Even though mono-AD strategy more performant than co-AD in terms biogas (25.50 Lbiogas kgEOP−1 d−1), all tested conditions yielded 67–70% and negligible H2S content. Likewise, no significant differences between these strategies were found biodegradability reached maximum values 230.85 ± 19.29 kgVS−1 d−1 61.3 5.1%, respectively. The main them overall chemical oxygen demand consumption rate (819.10 656.70 gCOD L−1 for Co-AD mono-AD, respectively) volatile solids removal (86.5% 34.8% mono-AD) when feeding 40 g pretreated EOP. This work highlights positive effect improve AD feasibility proposal achieve zero
Language: Английский
Citations
4
Fuel, Journal Year: 2024, Volume and Issue: 366, P. 131388 - 131388
Published: March 6, 2024
Language: Английский
Citations
1