Techno-economic evaluation of anaerobic co-digestion of pepper waste and swine manure

Riaño, Berta; Molinuevo-Salces, Beatriz; Parralejo, A.I.; Royano, L.; González-Cortés, José Joaquín; García-González, María Cruz

doi:10.1007/s13399-021-01831-0

Cited by 10 publications

(6 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Conversely, the trend in the PM:LB arrangement showed a variability in ROM enhancement (Figure S3). Such variations might have stemmed from the wide range of ammonia concentrations found in PM (from 3–13 gN/L). ,,− , Higher ammonia concentrations can negatively impact microbial health by compromising cell membrane function, leading to decreased integrity, elevated permeability, depolarization, and diminished fluidity . Additionally, the energy expenditure for microbes to regulate intracellular pH through the potassium pump increases due to the diffusion of free ammonia. , Despite this, methanogens have shown an ability to withstand certain levels of ammonia toxicity, with thresholds identified at 4 and 7 gN/L for acetoclastic and hydrogenotrophic methanogenesis, respectively …”

Section: Resultsmentioning

confidence: 99%

“…Out of 326 studies, 65 were obtained after screening, yielding 432 relevant AcoD data sets for meta-analysis and modeling, grouped according to their mono-digestion control, including the: (1) AM compared to AcoD of ruminant manure AM(RM):LB, − pig manure AM(PM):LB, chicken manure AM(CM):LB, AM:FW, ,− AM:slaughterhouse waste (SL), , AM:desugared molasses (MO), and AM:algae (AL); (2) LB mono-digestion compared to LB:AM(RM), ,,, LB:AM(PM), ,− LB:AM(CM), ,,, LB:FW, , LB:MO, and LB:SS; (3) SS mono-digestion to SS:fats, oils, grease (FOG), − SS:FW, − SS:AL, − SS:LB, , SS:high-carbon liquid substrate (L-C), and SS:glycerin (Gly); and (4) FW mono-digestion compared to FW:AM, ,, FW:LB, ,,− FW:SS, ,,,,, FW:high-nitrogen liquid substrate (L-N); as well as additional data sets ,…”

Section: Methodsmentioning

confidence: 99%

“…Such variations might have stemmed from the wide range of ammonia concentrations found in PM (from 3−13 gN/L). 24,53,[63][64][65][66]127 Higher ammonia concentrations can negatively impact microbial health by compromising cell membrane function, leading to decreased integrity, elevated permeability, depolarization, and diminished fluidity. 128 Additionally, the energy expenditure for microbes to regulate intracellular pH through the potassium pump increases due to the diffusion of free ammonia.…”

Section: Co-digestion Of Agricultural Wastes and Residuesmentioning

confidence: 99%

See 2 more Smart Citations

Understanding Anaerobic Co-digestion of Organic Wastes through Meta-Analysis

Chuenchart,

Surendra,

Khanal

2024

ACS EST Eng.

View full text Add to dashboard Cite

Anaerobic co-digestion (AcoD) is becoming increasingly popular in the biogas industry for its numerous advantages over mono-digestion, including balanced nutrient profiles, enhanced process stability, synergistic methane production, and reduced greenhouse gas emissions. However, varying results across AcoD studies highlight the need for an extensive meta-analysis of a large data set to better understand these synergies. Here, we compared methane yields from 432 data sets, based on the ratio of means, from AcoD and mono-digestion. The relative synergistic index (RSI) revealed synergistic effects in AcoD of lignocellulosic biomass with animal manures, particularly pig (RSI = 1.91) and chicken manures (RSI = 1.71). Due to its rapid biodegradability, food waste AcoD also demonstrated synergistic effects with both animal manures (RSI = 1.28) and lignocellulosic biomass (RSI = 1.41). After regrouping data by high-carbon cosubstrates, interpretable machine learning models identified temperature, which accelerates the hydrolysis of lignocellulosic biomass and emulsification of fats, oils, and grease, as the key factor influencing methane yield. Furthermore, experimental validation using food waste and sewage sludge co-digestion confirmed the superiority of multivariable linear regression in predicting specific methane yield over other models in terms of simplicity and efficiency.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Co-digestion Of Agricultural Wastes and Residuesmentioning

confidence: 99%

See 1 more Smart Citation

Understanding Anaerobic Co-digestion of Organic Wastes through Meta-Analysis

Chuenchart,

Surendra,

Khanal

2024

ACS EST Eng.

View full text Add to dashboard Cite

show abstract

“…There is a large number of studies concerning AC-D substrates employing vegetable waste with animal waste (i.e., slurry or cattle manure). An evaluation of pepper waste's addition in a co-digestion process with swine manure was developed by Riaño et al [10]. In this study, the highest specific methane yield obtained under batch conditions was 309 N L CH 4 kg VS −1 , with a percentage of pepper waste in the mixture of 50% (on the VS basis).…”

Section: Introductionmentioning

confidence: 83%

Pretreatment and Nanoparticles as Catalysts for Biogas Production Reactions in Pepper Waste and Pig Manure

Isabel¹,

Luis²,

Juan³

et al. 2023

Catalysts

View full text Add to dashboard Cite

The circular economy is based on using waste generated from any process to obtain products with zero residues' criteria. This research was focused on pepper waste from the polyphenolic extraction method. Pepper waste was evaluated in batch and semi-continuous regime anaerobic digestion, adding, as catalysts, absorbent nanoparticles and/or using pretreatment strategies. The best methane yields were obtained from SB1 (assay without pretreatment in pepper waste): 464 ± 25 NL kg VS−1 for batch assays; and from period II (1.47 g VS L−1 d−1) of S2 (assay of pig manure and pepper waste with thermal pretreatment): 160 NL/kg VS−1 for semi-continuous experiments. However, a kinetic study showed a methane production rate higher for SB2 (assay with nanoparticles as catalyst) than SB1 in batch assays.

show abstract

“…For example, Labatut et al [8] co-digested different co-substrates (cheese whey, plain pasta, used vegetable oil, cabbage, and raw potatoes, among others) with dairy manure. Bres et al [9] studied the performance of semi-continuous AD by co-digesting poultry manure with fruit and vegetable waste, while Riaño et al [10] studied the co-digestion of pepper waste and swine manure (SM).…”

Section: Introductionmentioning

confidence: 99%

Energy and Nutrients from Apple Waste Using Anaerobic Digestion and Membrane Technology

et al. 2022

View full text Add to dashboard Cite

The worldwide increment of food waste requires innovative management solutions, aligned with sustainability, energy, and food security. Anaerobic digestion (AD), followed by nutrient recovery, may be considered an interesting approach. This study proposed a co-digestion of apple pomace (AP) with swine manure (SM) to study the effect of different proportions of AP (0, 7.5, 15, and 30%, on a volatile solids (VS) basis) on the methane production and the stability of the process. Subsequently, the gas-permeable membrane (GPM) technology was applied to recover nitrogen (N) as ammonium sulfate (bio-based fertilizer) from the digestates produced after the AD of 7.5% of AP and SM, and SM alone. The results showed that the co-digestion of 7.5% and 15% of AP with SM presented a methane production similar to the AD of SM alone (with 412.3 ± 62.6, 381.8 ± 134.1, and 421.7 ± 153.6 mL g VS−1 day−1, respectively). The later application of the GPM technology on the resulting digestates, with SM alone and with 7.5% of AP with SM, showed total ammoniacal N recovery rates of 33 and 25.8 g N m−2 d−1, respectively. Therefore, the AP valorization through the AD process, followed by N recovery from the digestate, could be a good management strategy.

show abstract

Techno-economic evaluation of anaerobic co-digestion of pepper waste and swine manure

Cited by 10 publications

References 32 publications

Understanding Anaerobic Co-digestion of Organic Wastes through Meta-Analysis

Understanding Anaerobic Co-digestion of Organic Wastes through Meta-Analysis

Pretreatment and Nanoparticles as Catalysts for Biogas Production Reactions in Pepper Waste and Pig Manure

Energy and Nutrients from Apple Waste Using Anaerobic Digestion and Membrane Technology

Contact Info

Product

Resources

About