Anaerobic digestion of abattoir wastes for biogas production: optimization via performance evaluation comparison

Odejobi, Oludare Johnson; Odekanle, Ebenezer Leke; Bamimore, Ayorinde; Falowo, Olayomi Abiodun; Akeredolu, F.A.

doi:10.1080/23311916.2022.2122150

Cited by 3 publications

(7 citation statements)

References 34 publications

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“…The high protein content in the abattoir samples in this study is consistent with the literature, where it has been reported that abattoir waste is rich in both proteins and lipids [73][74][75]. Pasteurization pre-treatment in this study was observed to increase the protein and lipid concentration as compared to untreated and sterilized samples due to the enhancement of organic matter solubilization.…”

Section: Impact Of Thermal Pre-treatment On the Physicochemical Prope...supporting

confidence: 91%

“…Even though biomethane accumulation in sterilized samples started slow as compared to untreated and pasteurized samples, both sterilized and pasteurized samples were observed to have produced higher biomethane when the experiment was terminated at day 40 HRT. This increase due to thermal pre-treatment, with positive effects on anaerobic digestion performance, has been reported for many different types of organic waste, i.e., for sewage sludge by Oludare et al [75] and pig manure by Edström et al [28].…”

Section: Results: Impact Of Thermal Pre-treatment On Biomethane Poten...mentioning

confidence: 57%

“…The high methane yield in pre-treated samples may also be due to the increased accessibility of lipids to the microorganisms resulting from the heat treatments, i.e., pasteurization and sterilization [29,75]. In contrast to the observed results, Hejnfelt and Angelidaki [27] reported that pre-treatment (pasteurization at 70 • C for 1 h and sterilization at 133 • C, 3 bar for 20 min) had no effects on the biomethane accumulation of abattoir waste.…”

Section: Results: Impact Of Thermal Pre-treatment On Biomethane Poten...mentioning

confidence: 85%

“…+ concentration [14,17,71,[75][76][77]. During this study, to minimize NH 4 + toxicity in the digesters, the temperature was kept constant at 37 ± 2 • C (using a water bath) and acclimatization of the microorganism was not performed, which may have resulted in NH 4 + toxicity in sterilized cattle and pig abattoir slaughter waste samples.…”

Section: Impact Of Thermal Pre-treatment On the Physicochemical Prope...mentioning

confidence: 99%

“…Sterilization had a negative impact on protein concentration, as the values were low compared to control and pasteurization treatments. This may be due to the denaturing effect of the high-temperature sterilization process on proteins [73,75].…”

Section: Impact Of Thermal Pre-treatment On the Physicochemical Prope...mentioning

confidence: 99%

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Impact of Thermal Pretreatment on the Physicochemical Characteristics and Biomethane Yield Potential of Solid Slaughter Waste from High-Throughput Red Meat Abattoirs Valorized as a Potential Feedstock for Biogas Production

Matjuda,

Tekere,

Thaela-Chimuka

2024

Sustainability

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Rapid urbanization worldwide results in high demand for meat products, which in turn result in high numbers of animals being slaughtered for human consumption to meet food security demands, especially in low-income countries such as South Africa. The waste produced during slaughtering can serve as feedstock for biogas production. This study aims to determine the impacts of pasteurization and sterilization pre-treatments on high-throughput red meat abattoir solid slaughter waste’s physicochemical properties and biomethane yield when used as a feedstock for biogas production. Abattoir solid slaughter waste was collected from 45 high-throughput red meat abattoirs across South Africa and the various physicochemical properties were determined using standard methods, along with the impact of sterilization and pasteurization on red meat abattoir waste. Biomethane yield analysis was performed using AMPTS II with a hydraulic retention time of 40 days. Pasteurization and sterilization pretreatment was seen to increase physicochemical parameters such as pH, volatile solids, total solids, carbon, and nitrogen analyzed in all samples. Pasteurization and sterilization were also seen to increase biomethane yield, where methane production ranged from 610.67 Nml to 1756.30 Nml, 1592.20 Nml to 3319.30 Nml, and 949.57 Nml to 3297.87 Nml for untreated, sterilized, and pasteurized samples, respectively. There was no significant difference (p < 0.05) observed in the effect pasteurized and sterilized samples had on physicochemical properties and biomethane yield. It can be concluded that pasteurization and sterilization enhance the bioavailability of the physicochemical properties and biomethane yield of red meat solid slaughter waste when valorized as feedstock for biogas production.

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Section: Impact Of Thermal Pre-treatment On the Physicochemical Prope...supporting

confidence: 91%

Section: Results: Impact Of Thermal Pre-treatment On Biomethane Poten...mentioning

confidence: 57%

Section: Results: Impact Of Thermal Pre-treatment On Biomethane Poten...mentioning

confidence: 85%

Section: Impact Of Thermal Pre-treatment On the Physicochemical Prope...mentioning

confidence: 99%

Section: Impact Of Thermal Pre-treatment On the Physicochemical Prope...mentioning

confidence: 99%

See 3 more Smart Citations

Impact of Thermal Pretreatment on the Physicochemical Characteristics and Biomethane Yield Potential of Solid Slaughter Waste from High-Throughput Red Meat Abattoirs Valorized as a Potential Feedstock for Biogas Production

Matjuda,

Tekere,

Thaela-Chimuka

2024

Sustainability

View full text Add to dashboard Cite

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Adaptive Back-Propagation Neural Network and Particle Swarm Optimization-Based Approach for Optimizing the Output Power Biogas Fueled Electric Generator

Abdurrakhman,

Sutiarso,

Ainuri

et al. 2024

IEEE Access

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Proximate and compositional assessment of pretreatment methods on selected lignocellulose biomass for biogas production

Nwaezeapu,

Agbozu

2023

Int. J. Bio. Chem. Sci

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The efficient conversion of lignocellulosic biomass into biogas is a critical avenue in sustainable bioenergy production. Pretreatment enhances the accessibility of lignocellulose components for subsequent enzymatic hydrolysis and biogas production. This study evaluated the proximate and compositional changes induced by various pretreatment techniques on lemon grass and fluted pumpkin stalk, with a focus on optimizing biogas yield. Alkaline, hydrothermal, and combined hydrothermal pretreatment processes were applied on the feedstocks. The biomass surface characteristics were determined through proximate and compositional analysis.The characterization of the untreated biomass showed that lemon grass and fluted pumpkin stalk recorded; dry matter, moisture content, fixed carbon, total kjeldahl nitrogen and ash content in the ranges of 94.49%-94.56%, 5.44%-5.51%, 26.35%-28.95%, 1.33%-1.932% and 6.00%-12.00% respectively. The cellulose values of the untreated biomass ranged from 34.04% for fluted pumpkin stalk to 38.66% for lemon grass. However, the content of the cellulose increased with pretreatment to values ranging from 44.20% to 51.06%. The results of this analysis showed that the selected lignocellulose biomass has properties that are consistent with past literature stating them as suitable substrates for biogas production. Nonetheless, the potential for increased biogas yield from anaerobic digestion is greater when combined hydrothermal and alkaline pretreatment is used.

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Anaerobic digestion of abattoir wastes for biogas production: optimization via performance evaluation comparison

Cited by 3 publications

References 34 publications

Impact of Thermal Pretreatment on the Physicochemical Characteristics and Biomethane Yield Potential of Solid Slaughter Waste from High-Throughput Red Meat Abattoirs Valorized as a Potential Feedstock for Biogas Production

Impact of Thermal Pretreatment on the Physicochemical Characteristics and Biomethane Yield Potential of Solid Slaughter Waste from High-Throughput Red Meat Abattoirs Valorized as a Potential Feedstock for Biogas Production

Adaptive Back-Propagation Neural Network and Particle Swarm Optimization-Based Approach for Optimizing the Output Power Biogas Fueled Electric Generator

Proximate and compositional assessment of pretreatment methods on selected lignocellulose biomass for biogas production

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