Evaluation of use of biogas plant digestate as fertilizer in alfalfa and winter wheat

Koszel, Milan; Przywara, Artur; Santoro, Francesco; Anifantis, Alexandros Sotirios

doi:10.22616/erdev2018.17.n184

Cited by 12 publications

(10 citation statements)

References 31 publications

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“…The obtained values were 0.119, 0.12 and 5.37 g•dm −1 for nitrogen, phosphorous and potassium, respectively ( Table 1). The content of heavy metals was within the acceptable range, which confirms the usability of the digestate as a crop fertilizer [39,40]. It is also important to note that the elemental analysis of the digestate was comparable to results reported by other authors [41].…”

Section: Resultssupporting

confidence: 85%

Impact of the Type of Fertilization and the Addition of Glycerol on the Quality of Spring Rape Straw Pellets

Kachel‐Jakubowska¹,

Kraszkiewicz²,

Subr³

et al. 2020

Energies

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This paper presents an analysis of selected qualitative characteristics of pellets produced from rape straw obtained from cultivations subjected to different fertilization treatments and from mixtures of straw selected for testing with crude glycerol obtained as a by-product from biodiesel production. The assessment focused on the following qualities of the obtained pellets: Moisture content, mechanical durability, heating value and main elements, that is, carbon, hydrogen, nitrogen, sulphur, chlorine and oxygen. The obtained results indicated that the different treatment regimens applied in spring rape cultivations had a significant impact on the physicochemical qualities of the straw. In terms of the heating value, traditional fertilization with multi-component fertilizer (NPK) yielded slightly lower chemical parameters (lower carbon content and heat of combustion) than in the case of straw obtained from the control sample and from the plot fertilized with digestate. Furthermore, in all of the analysed mixtures, the 10% addition of raw glycerol improved the mechanical characteristics of the produced straw pellets. After the 10% glycerol addition, in terms of the energetic use of these biofuels, the parameters of the fuel, such as heating value and net heating value, were slightly decreased.

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Section: Resultssupporting

confidence: 85%

Impact of the Type of Fertilization and the Addition of Glycerol on the Quality of Spring Rape Straw Pellets

Kachel‐Jakubowska¹,

Kraszkiewicz²,

Subr³

et al. 2020

Energies

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“…Moreover, the digestate contains substantial amounts of macroelements, therefore it can be used as a fertilizer. This is confirmed by the investigation conducted last year (Koszel et al 2016).…”

Section: Resultssupporting

confidence: 79%

Evaluation of the Use of Biogas Plant Digestate as a Fertilizer in Field Cultivation Plant

Koszel¹,

Przywara²,

Kachel‐Jakubowska³

et al. 2017

Farm Machinery and Processes Management in Sustainable Agriculture, IX International Scientific Symposium

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Biogas production in an agricultural biogas plant is connected with generation of large amounts of postdigestion liquid as a result of anaerobic decomposition of plant debris. Due to its physicochemical properties, post-digestion liquid can be used as a fertilizer. A possibility of agricultural utilization of digestate as a fertilizer was investigated. Digestate obtained from an agricultural biogas plant was tested for the content of macroelements and heavy metals. The content of macroelements was also examined in the soil before and after digestate application. Digestate was used for in the cultivation of fodder winter rape and winter wheat. The content of macroelements as well as the content of protein in the grains of winter wheat fertilized with digestate were on the same levels as in the grains of wheat fertilized with mineral fertilizers. Similar tendency was also observed in winter rape grains. Digestate utilization as a fertilizer brings tangible benefits in agricultural production and can reduce the negative effects of mineral fertilization and contribute to development the sustainable agriculture. The study has shown that digestate can be used as a fertilizer.

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“…This product, resulted from the digestion process contains more inorganic nitrogen than non-digested organic fertilizers, and, in consequence, more nitrogen in a form available for plants [88]. Previous studies conducted in EU countries demonstrated the possibility of using the digestate as a replacement for the traditional fertilizer or soil amendment, with the benefits both for the farmers (impact on the crop yields) and soil properties [89][90][91][92][93]. Nevertheless, in some cases the digestate management can be problematic for the biogas producers.…”

Section: Limitation For Development Of Agricultural Biogas Plants In mentioning

confidence: 99%

The Review of Biomass Potential for Agricultural Biogas Production in Poland

et al. 2019

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Adequate management of biomass residues generated by agricultural and food industry can reduce their negative impacts on the environment. The alternative use for agricultural waste is production of biogas. Biomass feedstock intended as a substrate for the agricultural biogas plants may include energy crops, bio-waste, products of animal and plant origin and organic residues from food production. This study reviews the potential of selected biomass residues from the agri-food industry in terms of use for agricultural biogas production in Poland. The most common agri-food residues used as substrates for biogas plants in Poland are maize silage, slurry, and distillery waste. It is important that the input for the agricultural biogas installations can be based on local wastes and co-products that require appropriate disposal or storage conditions and might be burdensome for the environment. The study also discusses several limitations that might have an unfavourable impact regarding biogas plants development in Poland. Given the estimated biomass potential, the assumptions defining the scope of use of agricultural biogas and the undeniable benefits provided by biogas production, agricultural biogas plants should be considered as a promising branch of sustainable electricity and thermal energy production in Poland, especially in rural areas.

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Evaluation of use of biogas plant digestate as fertilizer in alfalfa and winter wheat

Cited by 12 publications

References 31 publications

Impact of the Type of Fertilization and the Addition of Glycerol on the Quality of Spring Rape Straw Pellets

Impact of the Type of Fertilization and the Addition of Glycerol on the Quality of Spring Rape Straw Pellets

Evaluation of the Use of Biogas Plant Digestate as a Fertilizer in Field Cultivation Plant

The Review of Biomass Potential for Agricultural Biogas Production in Poland

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