Anaerobic Co-Digestion of Human Feces with Rice Straw for Biogas Production: A Case Study in Sunyani

Adjama, Irédon; Derkyi, Nana Sarfo Agyemang; Uba, Felix; Akolgo, Gilbert Ayine; Opuko, Richard

doi:10.1155/2022/2608045

Cited by 15 publications

(12 citation statements)

References 37 publications

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“…The superior methane yield was attributed to the high volatile solid concentration and the carbon-to-nitrogen ratio of the manure. In another study, an equal proportion of rice straw and human feces (50:50) was the optimal ratio that produced the highest biogas yield (61% yield, volume of 6391 ml) during the anaerobic co-digestion of rice straw and human feces [128]. In other studies, Kaur and Kommalapati [129] reported a biogas yield of 262 mlgVS -1 for the 20:80 co-digestion of goat manure and cotton gin trash while a value of 250 mlgVS -1 was reported by Alfa et al [130] for the 25:75 co-digestion of cow dung and horse dung.…”

Section: Anaerobic Digestionmentioning

confidence: 98%

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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Section: Anaerobic Digestionmentioning

confidence: 98%

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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show abstract

“…"Biogas, a colorless and combustible gas is produced via anaerobic fermentation of animal, plant, human, industrial, and municipal waste to produce methane (50-70%), Carbon dioxide (20-40%), and traces of other gases such as nitrogen, hydrogen, ammonia, hydrogen sulphide, water vapor, etc". [1,2,14,15,16]. "However, the composition of the mixture depends on the source of biological waste and the management of the digestion process" [2].…”

Section: Introductionmentioning

confidence: 99%

Parametric Evaluation of Biogas Production from Sawdust and Treated Human Faeces: Optimal Custom Design Approach

Emu,

Iweka,

Madu

et al. 2024

JENRR

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As energy demand is increasing astronomically, fossil-based fuels became scarce and more expensive, and carbon dioxide emission levels became of greater concern. Thus, the need to convert the co-digestion of sawdust and treated human faeces to produce biogas, a carbon-neutral gas to replace fossil fuels. From the outcome, the logistic function model performance was satisfactory in the simulation of the experimental process. The codigestion of sawdust and human faeces at 2.5 kg each produced the highest biogas output of 5.43 L using Optimal (Custom) Design of Mixture approach but the human faeces alone gave a better biogas quality. Additionally, the high coefficient of determination (R2) ranging between 0.9959 - 0.9879 and standard deviation of 0.023 - 0.321 for temperature - biogas yield respectively, fall within an ideal range. Thus, the model proved to be a useful tool in predicting anaerobic digestion and biogas production processes. Furthermore, the FTIR analysis of sawdust and human faeces indicates their potential to produce biogas if subjected to anaerobic environment. In addition, the GCMS analyzed the % of methane to be 58.40% which is within accepted range. The biogas was tested with a locally fabricated gas burner for flammability and it ignited with a blue flame. Thus, this experiment can be translated to an industrial scale biogas production for cooking and electricity to boost local economy and alleviate poverty.

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“…Biogas technology is a renewable energy source with numerous application [ 15 , 19 , 20 ]. It includes anaerobic digestion (AD) of any kind of organic waste, including human excreta [ 21 ]. AD is the process of decomposing organic matter and producing CH 4 , CO 2 , and other gases in the absence of oxygen [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of fresh human feces biogas and compost potential: Evidence for circular economy from waste streams in Ethiopia

Donacho,

Tucho,

Olani

et al. 2023

Heliyon

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Anaerobic Co-Digestion of Human Feces with Rice Straw for Biogas Production: A Case Study in Sunyani

Cited by 15 publications

References 37 publications

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

Parametric Evaluation of Biogas Production from Sawdust and Treated Human Faeces: Optimal Custom Design Approach

Experimental evaluation of fresh human feces biogas and compost potential: Evidence for circular economy from waste streams in Ethiopia

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