Optimization of solid content, carbon/nitrogen ratio and food/inoculum ratio for biogas production from food waste

Dadaşer-Çelik, Filiz; Azgin, Sukru Taner; Yildiz, Yalçın Şevki

doi:10.1177/0734242x16659922

Cited by 14 publications

(6 citation statements)

References 25 publications

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“…[37,38]. Furthermore, Dadaser-celik et al have reported the significant greater contribution of solid content followed by feed/inoculum in the generation of biogas from food waste [39]. At lower total solid content, HRT increased with decrease in feed/inoculums ratio, while it decreased with increase in feed/inoculum ratio (Figs.…”

Section: Interaction Effect Of Operating Variablesmentioning

confidence: 93%

Biomethanization of the Mixture of Cattle Manure, Pig Manure and Poultry Manure in Co-Digestion with Waste Peels of Pineapple Fruit and Content of Chicken-Gizzard - Part II: Optimization of Process Variables

Aworanti¹,

Agarry²,

Ogunleye³

2017

TOBIOTJ

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Background:The indiscriminate discharge of industrial waste, agricultural-biomass waste, waste of municipal, domestic and kitchen waste has negatively impacted on the environment and human health. It is very pertinent to reduce these impacts to the barest minimum through conversion of the waste to useful products. The conversion of these wastes to generate alternative energy to fossil fuel through the technology of anaerobic fermentation is one of the viable and more fascinating options for the management of waste. Objective:To investigate the interactive effect and optimization of process parameters of temperature, total solid content and feed/inoculum ratio on the biomethanization of the mixture of cattle manure, pig manure and poultry manure in co-digestion with waste peels of pineapple fruit and content of chicken-gizzard. Method:Full-factorial central composite design of experiment (RCCD) of the response surface method (RSM) was adopted to assess the possible interactive effects of the process variables and the optimal parameters (i.e. optimization) for biogas/biomethane production in an anaerobic digester. Result:The process variables had a significant (P < 0.05) positive and negative interactive effect on the biomethanization process. A secondorder quadratic polynomial regression model which is statistically significant (p < 0.0001) was respectively obtained for cumulative biogas yield (CBY), biomethane content (BC) and hydraulic retention time (HRT). Temperature of 55.2°C; total solid content of 6.25%; and feed/inoculums ratio of 1:2 were found to be the optimum values required to attain a predicted optimum values of 6.261 dm 3 /g CBY, 71.54% BC within a minimum 8 days of HRT. At this optimum process conditions, the experimental observed maximum CBY, and BC with a minimum HRT were found to be 6.217 dm 3 /g of slurry, 71.10% and 7 days, respectively. Conclusion:Biogas/biomethane generation through co-substrate anaerobic fermentation of animal waste with waste of fruits constitute a reasonable and applicable renewable energy alternative and this can be optimized through response surface methodology.

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Section: Interaction Effect Of Operating Variablesmentioning

confidence: 93%

Biomethanization of the Mixture of Cattle Manure, Pig Manure and Poultry Manure in Co-Digestion with Waste Peels of Pineapple Fruit and Content of Chicken-Gizzard - Part II: Optimization of Process Variables

Aworanti¹,

Agarry²,

Ogunleye³

2017

TOBIOTJ

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“…In case of maximizing the biogas yield, the larger-thebetter characteristic was applied using Eq. 1 [26].…”

Section: Taguchi Methodsmentioning

confidence: 99%

Optimization of Parameters for Biogas Production from Bagasse Using Taguchi Method

Budiyono¹,

Riyanta²,

Sumardiono³

et al. 2021

Pol. J. Environ. Stud.

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Biogas production from lignocellulosic compounds is affected by several parameters. In the present article, Taguchi method was applied in evaluating the parameters including inoculums type (cow rumen and cow dung), pretreatment time (0, 24, 48 h), and total solid content (2, 5, 10 %). The L 18 (2 1 ×3 2 ) full factorial design with a mixed orthogonal array was selected to conduct the experiments. Furthermore, to find the percentage contribution of each parameter on biogas yield, the analysis of variance was applied. The analysis results showed that the best inoculum type was cow rumen (signal-to-noise 27.59), the best pretreatment time was 48 h (signal-to-noise 28.20) and the best total solid was 2% (signal-to-noise 31.98). Furthermore, the percentage contribution of inoculum type, pretreatment time, and total solid was 0.43, 7.97 and 83.51% respectively. It means the total solid was the most effective parameter and then it was followed by pretreatment and inoculums. The predicted maximum biogas yield of 42.59 L/kg resulted from an optimum condition of inoculum of cow rumen, pretreatment time of 48 h, and a total solid of 2%. In the confirmation test, the Taguchi method could predict biogas yield successfully with R 2 of 0.919.

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“…While several investigations have tried to improve the methanogenesis step through optimization of single parameters such as temperature or pH [75,76], it is clear that operation parameters relate to each other and thus optimization study should not only focus single parameters. The methodologies which can be used to optimize and understand the relationship between temperatures, pH and ammonia concentration in the AD process are thus required.…”

Section: Optimizing the Methanogenesis Phasesmentioning

confidence: 99%

A review on strategies to optimize metabolic stages of anaerobic digestion of municipal solid wastes towards enhanced resources recovery

Richard

Hilonga

Machunda

et al. 2019

Sustain Environ Res

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Recently, there are increased efforts by municipals and researchers to investigate the potential of utilizing municipal solid wastes (MSW) for resources recovery. In many parts of developing countries, MSW is mostly collected for disposal with little emphasis on resources recovery. However, the MSW has high organic and moisture contents, and are suitable substrates for anaerobic digestion (AD) process to recover biogas for energy and digestate which can be used as fertilizers or for soil amendments. Resources recovery from the AD process consists of four metabolic stages; hydrolysis, acidogenesis, acetogenesis, and methanogenesis. These metabolic stages can be affected by several factors such as the nature of substrates, accumulation of volatile fatty acids, and ammonia inhibition. In this review, different optimization strategies towards resources recoveries such as pre-treatment, codigestion, trace elements supplementation, optimization of key parameters and the use of granular activated carbon are discussed. The review reveals that the currently employed optimization strategies fall short in several ways and proposes the need for improvements.

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Optimization of solid content, carbon/nitrogen ratio and food/inoculum ratio for biogas production from food waste

Cited by 14 publications

References 25 publications

Biomethanization of the Mixture of Cattle Manure, Pig Manure and Poultry Manure in Co-Digestion with Waste Peels of Pineapple Fruit and Content of Chicken-Gizzard - Part II: Optimization of Process Variables

Biomethanization of the Mixture of Cattle Manure, Pig Manure and Poultry Manure in Co-Digestion with Waste Peels of Pineapple Fruit and Content of Chicken-Gizzard - Part II: Optimization of Process Variables

Optimization of Parameters for Biogas Production from Bagasse Using Taguchi Method

A review on strategies to optimize metabolic stages of anaerobic digestion of municipal solid wastes towards enhanced resources recovery

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