Application of small digester biogas for energy supply in rural areas

Wahyuni, Sri; Sutjahjo, Surjono Hadi; Purwanto, Y. Aris; Fuah, Asnath Maria; Kurniawan, Rachman

doi:10.1088/1755-1315/141/1/012035

Cited by 5 publications

(4 citation statements)

References 1 publication

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“…The biogas yields obtained are slightly above the minimum reported value for co-digestion of manure slurry which is 0.015 to 0.040m 3 /kg [13]. This is due to the nature of the experimental setup used because biogas production is only ascertained if certain amount of water is displaced.…”

Section: Fig31: Biogas Yieldmentioning

confidence: 66%

Untitled

2024

IJRIAS

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Biogas production from anaerobic digestion of organic waste is an important renewable energy source with great potential of replacing fossil fuels for heat and electricity generation. However, efficient anaerobic digestion process and energy conversion technology must be ensured for better biogas yield and energy generation. The present study involves experimental assessment of biogas production from anaerobic co-digestion of biomass feedstock. The experimental stage involves the codigestion of livestock manure with slaughterhouse waste and vegetable waste, different sets of experiments were conducted at mesophilic condition of 37 o C, 25 days of retention time and utilizing water displacement experimental setup. The biogas yields obtained for the co-digestion of Cow dung + Poultry manure (S1), Cow dung + Sheep manure (S2), Slaughterhouse waste + Poultry manure (S3), Sheep dung + Poultry manure (S4), Poultry manure + Whey (S5) and Vegetable waste + Cow (S6) are 0.0236m 3 /kg, 0.0231m 3 /kg, 0.0264m 3 /kg, 0.0234m 3 /kg, 0.0266m 3 /kg and 0.0191m 3 /kg respectively. These values are acceptable values of biogas yields for livestock manure co-digestion. However the co-digestion revealed that the biogas yields obtained are slightly above the minimum reported value for co-digestion of manure slurry, this is due to the nature of the experimental setup used. According to the simulation conducted with engineering equation solver software on the modeled biogas plant, energy efficiency of 42.55% was achieved by integrating the digestion process to the steam cycle which provides better heat utilization.

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Section: Fig31: Biogas Yieldmentioning

confidence: 66%

Untitled

2024

IJRIAS

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“…Assuming the characteristics of the biomass sample are representative across the full production, the results of biogas production (Table 6) were used in the LCA analysis. The energy content of 1 m 3 biogas was initially assumed to be equivalent to 0.46 kg LPG or 0.62 L kerosene [19,20]. The biogas yield would reduce the need for LPG, it might even be possible to use biogas alone if scale-up is accounted for.…”

Section: Resultsmentioning

confidence: 99%

Study on biogas production from coffee wastes and cow-dung fermentation and its use towards reducing emissions from coffee roasting

Irawan

McLellan

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The production of high-quality coffee for export is an important industry in Indonesia. However, coffee processing produces unavoidable waste and emissions to the environment; 1 kg of cherry beans (CB) needs 3 kg of water for processing (2 kg for CB selection by floating, 1kg for wash-fermentation). One kg CB generates several waste and product streams: cherry skin (44%), beans (20%), parchment (5%), pulp (4%), silverskin (0.5%), and volatiles (26.5%). This study utilized the wastewater from the washed-coffee processing such as fermentation wash water and coffee pulp. The materials were mixed with cow dung from local farms for anaerobic processing in a one-gallon digester. This research took into consideration three variations: cow dung mixed with water in the same amount (1:1); cow dung and fermentation washing wastewater (1:1); and cow dung and pulp (1:1). The resulting biogas was analyzed with gas chromatography for comparison. Biogas yield was used to estimate the potential for supplying heat and electricity for use in the coffee roasting process. Alternative energy sources were also considered in the following combinations: biogas-electricity (solar panels) and LPG-electricity (fossil). A life cycle assessment was performed on scenarios to calculate global warming potential (GWP). This study will be used as a pilot project toward a zero-waste and zero-emission coffee industry. The scenario with the lowest GWP can be used as a reference for the sustainability of coffee production.

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“…Furthermore, it is one of the methods for reducing the number of environmental pollutants, which has been a popular issue recently, particularly concerning the notion of renewable energy (Widjaja et al, 2017). As a result, biogas generation is appropriate for small power consumption in villages; hence, the community may fulfill its own energy demands without relying on fossil fuels or other nonrenewable energy supplies (Wahyuni et al, 2018).…”

Section: Waste Reductionmentioning

confidence: 99%

Conformity assessment analysis of self-declare ecolabel criteria for Indonesia’s tourism villages development in Cikolelet, Banten Province

Syamsul,

Lestari,

Arini

et al. 2023

IJOGTRA

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This study aimed to observe the potential of conformity ecolabel self-declaration claims in Cikolelet Tourism Village, Banten Province, Indonesia. The village has an alternative tourism highland nature, unique culture, creative industry, and environmental conservation. Local people and tourism activities impacted the quality of the village, especially waste management. The literature review and field observation were applied to assess the Self Declare Ecolabel Criteria for waste management in Cikolelet using applicable standards and regulations in Indonesia. The scope of waste management applied to the tourism village includes compostable, recyclable, reusable, and waste reduction. According to the result of assessment and observations, generally, Cikolelet Tourism Village has made environmental management efforts. However, some lack of waste management in terms of waste reduction and handling, including sorting, transportation, processing, and final disposal, requires some improvements to comply with environmentally friendly criteria. A strong commitment is required to actualize the scope of the ecolabel self-declaration.

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Application of small digester biogas for energy supply in rural areas

Cited by 5 publications

References 1 publication

Untitled

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Study on biogas production from coffee wastes and cow-dung fermentation and its use towards reducing emissions from coffee roasting

Conformity assessment analysis of self-declare ecolabel criteria for Indonesia’s tourism villages development in Cikolelet, Banten Province

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