Quantitative characterization of carbonaceous and lignocellulosic biomass for anaerobic digestion

Matheri, Anthony Njuguna; Ntuli, Freeman; Ngila, Jane Catherine; Seodigeng, Tumisang; Zvinowanda, Caliphs; Njenga, Cecilia Kinuthia

doi:10.1016/j.rser.2018.04.070

Cited by 40 publications

(21 citation statements)

References 43 publications

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“…66,78,79 The obtained results were similar to those reported by other authors who studied single-ingredient pomaces (e.g., AP, CP or BP). 22,56,[80][81][82] Additionally, the results for the four mixtures were identical because apple is the main processed ingredient in all juices, therefore generating mixtures with a high percentage of AP.…”

Section: Feedstock Identication and Characterization Under The Selec...mentioning

confidence: 87%

Cold-pressed fruit and vegetable juice pomaces: decision making about their suitability for anaerobic digestion

Lopes

Fragoso

Duarte

2022

Sustainable Energy Fuels

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Section: Feedstock Identication and Characterization Under The Selec...mentioning

confidence: 87%

Cold-pressed fruit and vegetable juice pomaces: decision making about their suitability for anaerobic digestion

Lopes

Fragoso

Duarte

2022

Sustainable Energy Fuels

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“…Acetogenesis is the third step at which the mentioned acidogenesis products serve as a substrate to produce acetate by homoacetogens bacteria. Methanogenesis is the last step at which both acetate and carbon dioxide are directed to produce methane (biogas) by two sets of methanogens: acetoclastic and hydrogen utilising organisms (Matheri et al 2018;Ganesh Saratale et al 2018). The first group (acetoclastic methanogens) convert acetate into methane and carbon dioxide, while the other ones (hydrogen-utilising methanogens) generate methane by applying hydrogen and carbon dioxide as electrons donor and acceptor, respectively.…”

Section: Anaerobic Digestionmentioning

confidence: 99%

Conversion of biomass to biofuels and life cycle assessment: a review

et al. 2021

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The global energy demand is projected to rise by almost 28% by 2040 compared to current levels. Biomass is a promising energy source for producing either solid or liquid fuels. Biofuels are alternatives to fossil fuels to reduce anthropogenic greenhouse gas emissions. Nonetheless, policy decisions for biofuels should be based on evidence that biofuels are produced in a sustainable manner. To this end, life cycle assessment (LCA) provides information on environmental impacts associated with biofuel production chains. Here, we review advances in biomass conversion to biofuels and their environmental impact by life cycle assessment. Processes are gasification, combustion, pyrolysis, enzymatic hydrolysis routes and fermentation. Thermochemical processes are classified into low temperature, below 300 °C, and high temperature, higher than 300 °C, i.e. gasification, combustion and pyrolysis. Pyrolysis is promising because it operates at a relatively lower temperature of up to 500 °C, compared to gasification, which operates at 800–1300 °C. We focus on 1) the drawbacks and advantages of the thermochemical and biochemical conversion routes of biomass into various fuels and the possibility of integrating these routes for better process efficiency; 2) methodological approaches and key findings from 40 LCA studies on biomass to biofuel conversion pathways published from 2019 to 2021; and 3) bibliometric trends and knowledge gaps in biomass conversion into biofuels using thermochemical and biochemical routes. The integration of hydrothermal and biochemical routes is promising for the circular economy.

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“…Co-digestion of substrates assisted in adjusting the pH to 7.31, within the optimum range. [48][49][50][51]…”

Section: Co-digestion Of Biomassmentioning

confidence: 99%

Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa

et al. 2021

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The energy sector is an essential part of a country’s economy – it drives innovation and advances in industrialisation. Coal is the primary source of energy in South Africa. Coal contributes 95% of energy production; coal-fired power also contributes to greenhouse gas emissions, and is thus a hazard to human health and the environment. This calls for an energy mix that is renewable, sustainable, and affordable and that is carbon neutral (climate action). We investigated the potential of anaerobic mono-and co-digestion of goat manure, chicken manure, potato peels, maize pap, and cow manure inoculum for mesophilic recovery of renewable energy using the biomethane potential test. The substrates were characterised through proximate and ultimate analyses to determine the composition preferable for mono- and co-digestion. The key considerations in the determination of both the yield and production rate of methane from digestion of biomass are the substrate composition and characterisation. A high percentage of volatile solids favoured optimum biomethane production as highly volatile components provide microbes with balanced nutrients that enhance metabolic processes to produce biomethane. The mono-digestion process produced lower biomethane than did co-digestion. Higher production of biomethane by co-digestion was due to the balance of the micronutrients and macronutrients that favoured microbial metabolism and regulation of pH.

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Quantitative characterization of carbonaceous and lignocellulosic biomass for anaerobic digestion

Cited by 40 publications

References 43 publications

Cold-pressed fruit and vegetable juice pomaces: decision making about their suitability for anaerobic digestion

Cold-pressed fruit and vegetable juice pomaces: decision making about their suitability for anaerobic digestion

Conversion of biomass to biofuels and life cycle assessment: a review

Renewable energy potential of anaerobic mono- and co-digestion of chicken manure, goat manure, potato peels and maize pap in South Africa

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