Effect of Oil Content on Biogas Production, Process Performance and Stability of Food Waste Anaerobic Digestion

Awe, Olumide Wesley; Lu, Jiaxin; Wu, Shubiao; Nzihou, Ange; Lyczko, Nathalie; Minh, Doan Pham

doi:10.1007/s12649-017-0179-4

Cited by 34 publications

(19 citation statements)

References 47 publications

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“…VFAs were determined by colorimetry. The change in ammonia nitrogen content was determined by Nessler's reagent spectrophotometry [10,46,49,50]. Note: Calculate C/N by determining carbon (C) and nitrogen (N).…”

Section: Experimental Methodsmentioning

confidence: 99%

Anaerobic Digestion Technology for Methane Production Using Deer Manure Under Different Experimental Conditions

Wang

Sheng

et al. 2019

Energies

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Anaerobic digestion (AD) is an important technology for the treatment of livestock and poultry manure. The optimal experimental conditions were studied, with deer manure as a fermentation material and mushroom residue as an inoculum. At the same time, methane production was increased by adding zeolite and changing the magnetic field conditions. The results showed that a 6% solid content was the best condition for producing methane. The optimal conditions for methane production were obtained by adding 35 g of mushroom residue to 80 g of deer manure at 35 °C. The addition of organic wastewater (OW) improved methane production. The result of improving the methane production factor showed that adding zeolite during the reaction process could increase the methane production rate. When the amount of zeolite was over 8% total solids (TSes), methane production could improve, but the rate decreased. Setting a different magnetic field strength in the AD environment showed that when the distance between the magnetic field and the reactor was 50 mm and the magnetic field strength was 10–50 mT, the methane production increment and the content of methane in the mixed gases increased.

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Section: Experimental Methodsmentioning

confidence: 99%

Anaerobic Digestion Technology for Methane Production Using Deer Manure Under Different Experimental Conditions

Wang

Sheng

et al. 2019

Energies

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“…As hydrolysis, acidogenesis, acetogenesis and methanogenesis processes are optimum in pH around 7. A similar strategy was applied to improve the pH inside the reactor when using food waste in the CSTR reactor [55] and tofu wastewater in the batch type reactor [56]. The overall pH of the reactor was fluctuating but was in the optimum range of 6.5-8.2 for methanogenesis during the operation.…”

Section: The Effluent Ph Hrt and Olr During The Ad Processmentioning

confidence: 99%

Effect of Semi-Continuous Anaerobic Digestion on the Substrate Solubilisation of Lignin-Rich Steam-Exploded Ludwigia grandiflora

et al. 2021

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In this study, semi-continuous anaerobic digestion of lignin-rich steam-exploded Ludwigia grandiflora (Lignin = 25.22% ± 4.6% total solids) was performed to understand better the effect of steam explosion on the substrate solubilisation and inhibitors formation during the process. Steam explosion pretreatment was performed at 180 °C for 30 min at a severity factor of 3.8 to enhance the biogas yield of the lignocellulosic biomass. The semi-continuous anaerobic digestion was performed in a continuously stirred tank reactor for 98 days at an initial hydraulic retention time of 30 days and an organic loading rate of 0.9 g-VS L−1day−1. The performed steam explosion pretreatment caused biomass solubilisation, resulting in enhanced biogas production during the process. During the anaerobic digestion process, the average biogas yield was 265 mL g-VS−1, and the pH throughout the operation was in the optimum range of 6.5–8.2. Due to fluctuations in the biogas yield, the hydraulic retention time and organic loading rate were changed on day 42 (50 days and 0.5 g-VS L−1day−1) and on day 49 (40 days and 0.7 g-VS L−1day−1), and 1 M of NaOH was added to the liquid fraction of the steam-exploded L. grandiflora during the latter part of the operation to maintain the stability in the reactor. Therefore, the steam explosion pretreatment helped in the degradation of L. grandiflora by breaking the lignocellulose structure. In addition, changes in the operating conditions of the anaerobic digestion led to an increase in the biogas production towards the end of the process, leading to the stability in the CSTR.

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“…Besides, anaerobic digestion allows waste containing high organic matter levels to reduce the load on its organic content. Simultaneously, producing biogas can generate heat, electricity, and biofuel for vehicles [11].…”

Section: ■ Introductionmentioning

confidence: 99%

Kinetic Study of Biogas Production from Animal Manure and Organic Waste in Semarang City by Using Anaerobic Digestion Method

2021

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The biogas fermentation from animal manure and organic waste was investigated with a comparison percentage of raw material used inside the digester with the anaerobic digestion process. Animal manure consists of cow dung and chicken manure, while organic waste consists of tofu liquid waste and cabbage waste. This study used a batch process that was operated at 55 °C incubator temperature for 90 days. The results of experimental data were predicted with a modified Gompertz model and first-order kinetic model. The equation of the modified Gompertz model to predict biogas production was with is cumulative production of methane; P∞ = methane production potential; Rm = maximum specific speed methane production; λ = is lag phase period or minimum time to produce biogas; e = math constant (2.7182) and t = biogas production cumulative time. The equation first-order kinetic model was Y = Ym (1-exp(-k). The highest biogas yield was obtained by variable 3 in both kinetic studies compared to 70% cow dung, 15% chicken manure, and 15% tofu liquid waste. Gompertz's kinetic study predicted variable three would produce 3273.20 mL/g of total solid (TS). In comparison, the first-order kinetic model predicted that variable three would produce 3517.95 mL/(g Ts).

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Effect of Oil Content on Biogas Production, Process Performance and Stability of Food Waste Anaerobic Digestion

Cited by 34 publications

References 47 publications

Anaerobic Digestion Technology for Methane Production Using Deer Manure Under Different Experimental Conditions

Anaerobic Digestion Technology for Methane Production Using Deer Manure Under Different Experimental Conditions

Effect of Semi-Continuous Anaerobic Digestion on the Substrate Solubilisation of Lignin-Rich Steam-Exploded Ludwigia grandiflora

Kinetic Study of Biogas Production from Animal Manure and Organic Waste in Semarang City by Using Anaerobic Digestion Method

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