The aim of this study was to evaluate physical and energetic parameters of peat. Utility of the peat in horticulture and power generation were also estimated. Peat was mined from the Klejniki deposit, (Hajnówka municipality, Podlaskie province) in the northeastern part of Poland. It was found that peat can be used for power generation, in the air-dry moisture condition. Peat parameters are similar to lignite. It can also be suitable for the production of horticultural substrates and incorporated into soil as a component for improving physical and chemical properties. The examined peat fulfills the requirements of for agricultural applications.
This study was performed due to a concept of building a biogas network connecting two agricultural biogas plants. It was concerned with the ecological and energy awareness amongst the citizens of two communes located in the Lubelskie Voivodship. Moreover, their interest in being connected to the local biogas network has been studied. The interviewees declared that they are familiar with different sources of energy. Solar energy was the most well-known. It has been noted that the level of information about how agricultural biogas plants operate is low, which is known both from verbal expressions and the responses to questions concerning inhabitants’ interest in becoming connected to the network. The citizens are afraid of burdens resulting from producing biogas, mostly the unpleasant smells. It has been noticed that most of the decisions upon which the environmental attitude may be assessed stem from the economic reasons. The need to raise the level of knowledge about producing biogas and using it as energy is very high.
W pracy przeprowadzono analizę porównawczą emisji SO2, NOx, CO, CO2 oraz pyłu w przeliczeniu na jednostkę energii wytworzonej z biomasy wierzby, węgla kamiennego i oleju opałowego lekkiego. Na podstawie przeprowadzonych obliczeń stwierdzono, że spalanie węgla kamiennego powoduje ponad osiemdziesięciokrotne, a oleju opałowego czterokrotne, zwiększenie emisji SO2 w odniesieniu do biomasy. Ilość NOx, przeliczona na NO2, powstającego podczas spalania węgla i oleju opałowego jest odpowiednio wyższa o 21% i niższa o 26%. Wykorzystanie węgla powoduje, że emisja CO jest mniejsza o 5% aniżeli w przypadku spalania biomasy, a oleju opałowego — mniejsza o 99%. Produkcja energii z badanych paliw kopalnych wiąże się z emisją CO2 wyższą o ok. 15–17% niż z paliwa odnawialnego. Emisja pyłu zawieszonego okazała się prawie dwukrotnie wyższa w przypadku węgla kamiennego w porównaniu do zrębek wierzby, zaś najmniejszą ilość tych zanieczyszczeń — dwudziestotrzykrotnie mniej — powodowało wykorzystanie oleju opałowego.
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