Possible agricultural use of digestate

Pachel, Karin; Kuusik, Aare; Loigu, Enn

doi:10.3176/proc.2017.1.10

Cited by 22 publications

(16 citation statements)

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“…Many sources, such as crops, grasses, leaves, manure, fruit, and vegetable wastes or algae can be used, and the process can be applied in small and large scales in many parts of the world. Energy crops digestion requires prolonged HRT of several weeks to month to achieve complete fermentation with high gas yields and minimized residual gas potential of the digestate [4]. For an increased dissemination of biogas plants, further improvements of the process efficiency, and the development of new technologies for mixing, process monitoring, and process control are necessary.…”

Section: Future Challenges and Conclusionmentioning

confidence: 99%

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Biomass Pretreatment for Enhancement of Biogas Production

Tamilarasan¹,

Azariah²

2019

Anaerobic Digestion

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Biomass is a renewable energy source developed from living or recently living plant and animal materials, which can be used as fuel. The main components present in biomass are polymers such as carbohydrate, protein, cellulose, lignin and fat. Biogas is produced when the biomass is anaerobically degraded by microorganisms. The process of anaerobic digestion (AD) takes place in four steps: hydrolysis, acidogenesis, acetogenesis, and methanogenesis. The hydrolysis step is rate limiting due to the presence of complex polymers in biomass. Pretreatment is a process in which the biomass is made ready for microbial attack. This pretreatment can be physical operations such as communition, irradiation etc.; chemical treatment with alkali, acids, wet oxidation etc.; biological pretreatment, by fungi or enzymes; or a combination of these processes. During the pretreatment process, the compact structure of biomass is disrupted and exposed which.

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Section: Future Challenges and Conclusionmentioning

confidence: 99%

“…Biogas is the main byproduct of AD and contains about 60% methane by volume. Digestate is produced as a byproduct, which after an appropriate treatment can have agricultural applications as fertilizer [4]. It reduces organic matter to more stable solids by complex biochemical reactions.…”

Section: Introductionmentioning

confidence: 99%

Biomass Pretreatment for Enhancement of Biogas Production

Tamilarasan¹,

Azariah²

2019

Anaerobic Digestion

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“…MP represents the methane production ratio of biogas % ECH4 is the energy content of methane, 36 MJ/m 3 CH4 [37] The fermentation process reduces the organic dry matter content of original material to 24-80% [38].…”

Section: Methodsmentioning

confidence: 99%

Energy Recovery From Animal Manure: Biogas Potential of Burdur, Turkey

Akyürek¹

2019

Anadolu University Journal of Science and Technology-a Applied Sciences and Engineering

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Sustainable development depends on the availability of energy resources and their impact on environment. Biogas is a carbon neutral renewable energy option and one of the leading solutions to the climate change combat. As Turkey is an energy importer country, using indigenous energy sources is vital to meet future energy demand. Agricultural activities and livestock potential have high contribution to economy in Turkey. Biogas production from organic wastes such as livestock manure in this context, gain more importance to contribute both renewable energy production and waste management strategies. Livestock farming has important economic value in Burdur. In this regard, the animal manure based biogas potential, energy value, electricity and organic fertilizer generation capacity of Burdur Province were determined in this study. The results revealed that Burdur has annually 1.45 million tons of available animal manure potential to be used for biogas production of 27.1 million m 3 /year. This potential corresponds to 135.4 GWh annual energy generation that could be converted to heat and electricity. Considerable amount of the biogas production capacity has accumulated in the Center and, Bucak, Yeşilova, Gölhisar and Karamanlı districts of Burdur. In addition, about 50776 tons/year of organic fertilizer can be produced as the residual of the biogas plants.

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“…The amount of energy produced from bio-methane (kWh/year) is calculated based on Equation 2; The fermentation process reduces the organic dry matter content of original material to 24-80% [27]. Co-digestion of animal manure with agricultural residues can utilize the nutrients and bacterial diversities in various wastes to optimize the digestion process and results in higher methane yield compared with anaerobic digestion of cattle manure alone [28].…”

Section: Methodsmentioning

confidence: 99%

Potential of biogas energy from animal waste in the Mediterranean Region of Turkey

Akyürek

2018

Journal of Energy Systems

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Continuous growth in global energy demand, depletion of fossil resources and climate change concerns associated with fossil fuel combustion have increased the motivation on utilization of renewable energy sources. Utilization of renewable sources is vital in Turkey as the country highly depends on imported energy. Biogas is a renewable energy resource produced from decomposing organic waste under anaerobic conditions. Production of biogas from organic wastes such as animal manure is advantageous to contribute renewable energy production and waste management strategies for health and environmental protection. In this study, the animal manure based biogas energy potential of the Mediterranean Region of Turkey is determined. The region is composed of eight provinces including Antalya,

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Possible agricultural use of digestate

Cited by 22 publications

References 0 publications

Biomass Pretreatment for Enhancement of Biogas Production

Biomass Pretreatment for Enhancement of Biogas Production

Energy Recovery From Animal Manure: Biogas Potential of Burdur, Turkey

Potential of biogas energy from animal waste in the Mediterranean Region of Turkey

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