Anaerobic co-digestion of cattle rumen content and food waste for biogas production: Establishment of co-digestion ratios and kinetic studies

Ihoeghian, Newton; Amenaghawon, Andrew N.; Ajieh, Mike U.; Oshoma, C. E.; Ogofure, Abraham G.; Erhunmwunse, Nosakhare Osazee; Edosa, Valerie I.O.; Tongo, Isioma; Obuekwe, Ifeyinwa S.; Isagba, Ebuwa S.; Emokaro, Christopher; Ezemonye, Lawrence Ikechukwu; Lag-Brotons, Alfonso J.; Semple, Kirk T.; Martin, Alastair

doi:10.1016/j.biteb.2022.101033

Cited by 13 publications

(7 citation statements)

References 47 publications

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“…The biogas trend increased until 28 days of digestion before it reached a stationary phase. The short lag phase recorded indicated the fact that the microbes in the feedstock adapted easily for the AD process to begin the biogas production [11]. This also due to the effect of hydrothermal pre-treatment towards the organic matters where it enhanced the solubilisation and subsequent degradation during digestion process, higher CH4 yield and reduce overall digestion time as reported by Dasgupta and Chandel [7].…”

Section: Resultsmentioning

confidence: 74%

Hydrothermal pre-treatment of hospital food waste for efficient bio-methane generation

Isa,

Md Huzir,

Rosly

et al. 2024

E3S Web Conf.

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Municipal solid waste management (MWM) in Malaysia has become a challenging task in recent years due to the growth of population, industrialization and an increase in quantity and variation in the types of waste generated. Major solid waste generated in Malaysia is organic waste which includes mainly food waste from households, food processing facilities, markets, food and beverages industry and hospitals. Therefore, it is crucial to identify ways to manage food waste (FW) properly and improve the energy recovery efficiency. This paper is aimed to study the impact of pre-treatment on food waste from Hospital Pakar Sultanah Fatimah (HPSF) as a method to decompose FW faster and to determine the potential of bio-methane generation. A compositional study showed that total solid waste generated was 2,301 kg with 67% waste from lunch followed by 31% from breakfast sessions daily. Hydrothermal pre-treatment was done using a Multipurpose Recycling Machine (MRM) at 1.6MPa for 15 minutes followed by anaerobic digestion with and without the inoculum addition. Un-treated FW with inoculum was used as control in this experiment. It was found out that at a controlled pH of 7, hydrothermal pre-treatment and addition of inoculum i.e. cow manure played an important role in anaerobic digestion process for enhancement of bio-methane production. It significantly reduced the lag phase by 4 days and produced biogas faster compared to nontreated FW and hence, increased the biogas volume up to 638.53 mL compared to 504.08 mL in non-treated FW at the same experimental conditions. Therefore, this study signified that hydrothermal pretreatment is an effective and a beneficial technique added to the waste through the generation of biogas energy.

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Section: Resultsmentioning

confidence: 74%

Hydrothermal pre-treatment of hospital food waste for efficient bio-methane generation

Isa,

Md Huzir,

Rosly

et al. 2024

E3S Web Conf.

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“…Co-digestion results in higher biogas yields, improved digester stability and, in particular, the combination of multiple feedstocks with their unique properties provides a more balanced nutrient composition, a diversified microbial community and better buffering capacity against the accumulation of VFAs [124]. For example, Ihoeghian et al [125] investigated the codigestion of cattle rumen content and food waste. They found that both materials had desirable characteristics necessary for biogas production.…”

Section: Anaerobic Digestionmentioning

confidence: 99%

“…Ihoeghian et al [125] Conversion pathway: Anaerobic digestion Investigated and established the best co-digestion ratio for cattle rumen content and food waste for synergistic biogas production A 50:50 ratio of cattle rumen content and food waste was recommended for biogas production Co-digestion of cattle rumen content and food waste enhanced biogas production…”

Section: Aim Of Study Key Findingsmentioning

confidence: 99%

“…AD is also another effective method for human and animal waste valorization [11]. Several studies have reported that human or animal waste could be an 3 of 48 effective source of energy or nutrients [12][13][14][15]. Hunter and Deshusses developed nitrification and denitrification filters to post-treat human waste-derived digestate so that they can efficiently recover nutrients that may be used as fertilizer [5].…”

Section: Introductionmentioning

confidence: 99%

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Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials and Value-Added Chemicals

Okolie¹,

Jimoh²,

Akande³

et al. 2023

Preprint

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Human and animal waste, including waste products originating from human or animal digestive systems such as urine, feces, and animal manure, have constituted a nuisance to the environment. Inappropriate disposal and poor sanitation of human and animal waste often cause negative impacts on human health through contamination of the terrestrial environment, soil, and water bodies. Therefore, it is necessary to convert these wastes into useful resources to mitigate their adverse environmental effect. The present study provides an overview and research progress of different thermochemical and biological conversion pathways for the transformation of human- and animal-derived waste into valuable resources. The physicochemical properties of human and animal waste are meticulously discussed as well as nutrient recovery strategies. In addition, a bibliometric analysis is provided to identify the trends in research and knowledge gaps. The results reveal that the U.S.A, China and England are the dominant countries in the research areas related to resource recovery from human or animal waste. In addition, researchers from the University of Illinois, the University of California Davis, the Chinese Academy of Science and Zhejiang University are front runners in research related to these areas. Future research should be centred on developing technologies for the on-site recovery of resources, exploring integrated resource recovery pathways, and exploring different safe waste processing methods.

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“…AD is also another effective method for human and animal waste valorization [9]. Several studies have reported that human or animal waste could be an effective source of energy or nutrients [10][11][12][13]. Hunter and Deshusses [3] developed nitrification and denitrification filters to post-treat human waste-derived digestate, so that they can efficiently recover nutrients that may be used as fertilizer [3].…”

Section: Introductionmentioning

confidence: 99%

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials, and Value-Added Chemicals

et al. 2023

Self Cite

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Human and animal waste, including waste products originating from human or animal digestive systems, such as urine, feces, and animal manure, have constituted a nuisance to the environment. Inappropriate disposal and poor sanitation of human and animal waste often cause negative impacts on human health through contamination of the terrestrial environment, soil, and water bodies. Therefore, it is necessary to convert these wastes into useful resources to mitigate their adverse environmental effect. The present study provides an overview and research progress of different thermochemical and biological conversion pathways for the transformation of human- and animal-derived waste into valuable resources. The physicochemical properties of human and animal waste are meticulously discussed, as well as nutrient recovery strategies. In addition, a bibliometric analysis is provided to identify the trends in research and knowledge gaps. The results reveal that the USA, China, and England are the dominant countries in the research areas related to resource recovery from human or animal waste. In addition, researchers from the University of Illinois, the University of California Davis, the Chinese Academy of Sciences, and Zhejiang University are front runners in research related to these areas. Future research could be extended to the development of technologies for on-site recovery of resources, exploring integrated resource recovery pathways, and exploring different safe waste processing methods.

show abstract

Anaerobic co-digestion of cattle rumen content and food waste for biogas production: Establishment of co-digestion ratios and kinetic studies

Cited by 13 publications

References 47 publications

Hydrothermal pre-treatment of hospital food waste for efficient bio-methane generation

Hydrothermal pre-treatment of hospital food waste for efficient bio-methane generation

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials and Value-Added Chemicals

Pathways for the Valorization of Animal and Human Waste to Biofuels, Sustainable Materials, and Value-Added Chemicals

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