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Wyszukujesz frazę "Smurzynska, A." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
Poznań Air Pollution Analysis for 2015–2017
Autorzy:
Smurzyńska, A.
Czekała, W.
Hektus, P.
Marks, S.
Mazurkiewicz, J.
Brzoski, M.
Chełkowski, D.
Kozłowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/125027.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
Poznań
air pollution
PM10
PM2.5
Opis:
Air pollution is the result of natural processes and intense urban development. The undesired emission of volatile substances causes environmental threats such as acid rains, aggravated greenhouse effect or the ozone depletion. Moreover, the pollution released into the air is harmful to the human respiratory system, eyes and skin. This paper presents the body of analyses conducted in Poznań between 2015–2017 on the changes in the local emission concentration of PM10 and PM2.5. The data concerning the emission of suspended particulates were provided by the meteorological station on Polanka St. in Poznań. The research included a correlation analysis. The results point to a steady decrease in the amount of produced particulates. It was also noted that the emissions of PM10 and PM2.5 change seasonally, with the highest levels in the autumn and winter. Furthermore, the amount of emitted suspended particulates is correlated with the temperature; hence, it is supposed that the main source of air pollution in Poznań involves low-efficiency heaters and boilers.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 162-169
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Study of the Solubility of Biodegradable Foams of Thermoplastic Starch
Autorzy:
Mitrus, M.
Combrzyński, M.
Kupryaniuk, K.
Wójtowicz, A.
Oniszczuk, T.
Kręcisz, M.
Matysiak, A.
Smurzyńska, A.
Mościcki, L.
Powiązania:
https://bibliotekanauki.pl/articles/123826.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
foams
biodegradable materials
thermoplastic starch
extrusion-cooking
solubility
Opis:
The paper presents the results of a study on the water absorption capacity and solubility of biodegradable starch foams produced with single-screw extruder TS-45 with L/D=12. Two different moulding dies were used: one with a circular hole with the diameter of 3 mm and one with a ring hole with the inner diameter of 5 mm. During the extrusion process, the temperature of the cylinder ranged from 80 to 130°C and the screw speeds applied were: 100 and 130 rpm. For the application of the ring die, it was observed that regardless of the speed of the screw, the use of the raw material of higher moisture content led to the production of materials with higher solubility. As a result, the obtained materials revealed solubility at a level of 40%. The results demonstrate good solubility of the starchy fillers of the packaging, which may indicate their susceptibility to decomposition in the conditions of high ambient humidity. A statistical analysis showed a significant impact of moisture of the raw material on the WSI of starch foams used irrespective of the other parameters of the extrusion-cooking process. The raw material moisture had a significant effect on the water absorption capacity of only TPS foams produced in the ring die at the screw speed of 100 rpm.
Źródło:
Journal of Ecological Engineering; 2016, 17, 4; 184-189
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Mixing During Laboratory Fermentation of Maize Straw with Thermophilic Technology
Autorzy:
Kozłowski, K.
Mazurkiewicz, J.
Chełkowski, D.
Jeżowska, A.
Cieślik, M.
Brzoski, M.
Smurzyńska, A.
Dongmin, Y.
Wei, Q.
Powiązania:
https://bibliotekanauki.pl/articles/124945.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
renewable energy sources
biogas
biogas efficiency
anaerobic digestion test
mixing of substrates
Opis:
The interest in biogas production in Poland is growing rapidly. This is mostly due to the fact that there is a need for handling and managing the increasing quantities of diverse bio-waste generated by industry and agriculture. Therefore, good laboratory practices and correct preparation of batch tests are very important for planning of a full-scale biogas plant. The aim of the paper was to determine the effect of mixing in the laboratory batch reactors on the biogas yield of maize straw under thermophilic conditions. The scope of this work included: (1) the analysis of basic physical and chemical parameters and (2) laboratory determination of biogas and methane yield from anaerobic digestion of maize straw with different frequencies of mixing. The obtained biogas and methane yield from the thermophilic fermentation of maize straw mixed every day was 381.89 m3·Mg-1 FM and 184.97 m3·Mg-1 FM, respectively. The results of this study confirmed the effect of no mixing inside reactors. In the batch test a decrease in biogas and methane yields was observed, by approx. 60 m3·Mg-1 and approx. 28 m3·Mg-1, respectively.
Źródło:
Journal of Ecological Engineering; 2018, 19, 5; 93-98
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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