Design and construction of fixed dome digester for biogas production using cow dung and water hyacinth

Uche, Ajieh Mike; Ogbomida, Emmanuel Temiotan; Paul, Onochie Uche; Olawale, Akingba; Frank, Kubeyinje Bawo; Rita, Orerome Owomwan; Martin, Ogbonmwan Sunday

doi:10.5897/ajest2019.2739

Cited by 17 publications

(2 citation statements)

References 26 publications

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“…The size of the digester, i.e. the digester volume (VD), is determined on the basis of the chosen retention time (RT) and the daily substrate input quantity (SD) [27].…”

Section: Sizing the Digestermentioning

confidence: 99%

Design of a Cylindrical Fixed Dome Biodigester from Hawassa University Senior Cafe food Waste for Cooking Purposes

Demewoz,

Tiruneh

2024

IJEES

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Global warming is one of the most dangerous threats that the entire world is facing today. The emission of greenhouse gases is increasing the impact of global warming. In such a situation, reduction of greenhouse gas emissions and finding an alternative source of energy is more and more important. The production of biogas from food wastes is considered a suitable way for the reduction of greenhouse gas emissions. Biogas could provide a more sustainable energy source than wood fuels for rural households in sub-Saharan Africa. Food waste is increasingly becoming a major problem in universities imposing serious environmental impact. Conversion of the food waste using anaerobic digestion (a series of biological processes in which microorganisms break down biodegradable material in the absence of oxygen.) to biogas energy is the best option for the management of food waste and for replacement of traditional fuel used (coal) which has been employed for cooking and heating application. In addition, the slurry produced from the process provides digestate which is a source of fertilizer. This paper investigates the potential of food waste left over in the Hawassa University cafeteria to produce biogas.12.75 m 3 per day of biogas from 255 kilograms of food waste per day was produced by 1200 number of students. A fixed dome cylindrical Chinese biogas having a digester volume of 20.3148 cubic meters (m³) with a retention time of 60 days and the diameter (d) and height (h) of the mixing pit are equal, which is 0.76 meters was required for the biogas production. Anaerobic Digestion is a biological process that takes place naturally when microorganisms break down organic matter in the absence of oxygen. In an enclosed chamber, controlled anaerobic digestion of organic matter produces biogas which is predominantly methane. Besides, food waste is increasingly becoming a major problem in every society imposing serious economic and environmental concerns. For this reason, many contemporary researchers are emphasizing finding sustainable solutions to recycle and produce energy from such waste. In this context, this paper aims to study and optimize the production of biogas from food waste by designing a fixed dome digester.

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“…The size of the digester, i.e. the digester volume (VD), is determined on the basis of the chosen retention time (RT) and the daily substrate input quantity (SD) [27].…”

Section: Sizing the Digestermentioning

confidence: 99%

Design of a Cylindrical Fixed Dome Biodigester from Hawassa University Senior Cafe food Waste for Cooking Purposes

Demewoz,

Tiruneh

2024

IJEES

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“…They recommended the digestion be carried out during the summer because low temperatures lead to low biogas generation. Elsewhere, a fixed dome digester was designed for biogas production using cow dung and WH (Figure 4) [57]. The digester is a semibatch reactor composed of a fermentation chamber, feed and digestate pipes and, a fixed dome on top for biogas storage.…”

Section: Schematic Representation Of the Process Developed By The Aut...mentioning

confidence: 99%

Biogas Generation from Co-Digestion Waste Systems: The Role of Water Hyacinth

Adelodun¹,

Olajire²,

Ojo³

2023

Sustainable Rural Development Perspective and Global Challenges

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Using biomass as a renewable energy source has earned tremendous interest from researchers in recent decades, especially because the technology is environmentally benign. This article reviews the recent methods for generating biogas from water hyacinth (WH, Eichornia crassipes), arguably the world’s most evasive aquatic macrophyte. Therefore, various economic, environmentally benign, and renewable procedures that enhance biogas production from WH biomass are reviewed. WH has been co-digested with numerous waste types, including poultry droppings, municipal wastes, animal tissue wastes, pig wastes, cow dungs, etc., recording varying success degrees. Other studies focused on optimizing the operation parameters, such as mixing ratio, contact time, pH, temperature, organic loading rate, etc. We observed that most attempts to generate biogas from WH alone were not promising. However, when co-digested with other biomasses or wastes, WH either increases the process rate or improves the methane yield content. Also, the potential of WH as a phytoremdiator-cum-biogas source was investigated. This chapter provides mathematical models, scale-up installation models, and specific experimental results from various studies to guide future study plans toward optimizing CH4 generation from WH co-digestion.

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Implementation of the Family Size Biogas Plant to Achieve a Sustainable Lifestyle: Case Study a Farm in Village 37

Al-Imarah¹,

Dawood²,

Abood³

et al. 2022

Springer Proceedings in Energy

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Design and construction of fixed dome digester for biogas production using cow dung and water hyacinth

Cited by 17 publications

References 26 publications

Design of a Cylindrical Fixed Dome Biodigester from Hawassa University Senior Cafe food Waste for Cooking Purposes

Design of a Cylindrical Fixed Dome Biodigester from Hawassa University Senior Cafe food Waste for Cooking Purposes

Biogas Generation from Co-Digestion Waste Systems: The Role of Water Hyacinth

Implementation of the Family Size Biogas Plant to Achieve a Sustainable Lifestyle: Case Study a Farm in Village 37

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