Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Wiśniewski, D." wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-6 z 6
    Tytuł:
    The pyrolysis and gasification of digestate from agricultural biogas plant
    Piroliza i gazyfikacja pofermentu z biogazowni rolniczych
    Autorzy:
    Wiśniewski, D.
    Gołaszewski, J.
    Białowiec, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/205370.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    anaerobic digestion
    digestate
    fertilizer
    drying
    pyrolysis
    gasification
    fermentacja beztlenowa
    poferment
    odwodnienie pofermenetu
    biogazownia
    nawóz
    piroliza
    gazyfikacja
    Opis:
    Anaerobic digestion residue represents a nutrient rich resource which, if applied back on land, can reduce the use of mineral fertilizers and improve soil fertility. However, dewatering and further thermal processing of digestate may be recommended in certain situations. Limited applicability of digestate as fertilizer may appear, especially in winter, during the vegetation period or in areas where advanced eutrophication of arable land and water bodies is developing. The use of digestate may be also governed by different laws depending on whether it is treated as fertilizer, sewage sludge or waste. The aim of this paper is to present the effects of thermal treatment of solid fraction of digestate by drying followed by pyrolysis and gasification. Pyrolysis was carried out at the temperature of about 500°C. During this process the composition of flammable gases was checked and their calorific value was assessed. Then, a comparative analysis of energy parameters of the digestate and the carbonizate was performed. Gasification of digestate was carried out at the temperature of about 850°C with use of CO2 as the gasification agent. Gasification produced gas with higher calorific value than pyrolysis, but carbonizate from pyrolysis had good properties to be used as a solid fuel.
    Pozostałości z biogazowni rolniczych stanowią bogaty w substancje nawozowe surowiec, w przypadku którego, jego rolnicze wykorzystanie, może zmniejszyć stosowanie nawozów mineralnych i poprawić właściwości gleby. Jednakże poferment powinien być wcześniej odwodniony i przetworzony termicznie. Ograniczona stosowalność w środowisku przyrodniczym pofermentu może szczególnie wystąpić w okresie zimowym oraz na terenach zagrożonych eutrofizacją. Wykorzystanie pofermentu podlega także ograniczeniom prawnym w zależności od tego czy jest traktowany jako nawóz, osad lub odpad. Celem artykułu jest przedstawienie efektów zastosowania termicznego przetwarzania odwodnionego pofermentu w procesach pirolizy i zgazowania. Proces pirolizy pofermentu prowadzono w temperaturze 500°C. Monitorowano skład i kaloryczność gazu pirolitycznego. Wykonano porównawcze analizy kaloryczności odwodnionego pofermentu i uzyskanego w wyniku pirolizy karbonizatu. Gazyfikację prowadzono w temperaturze 850°C w atmosferze CO2. Wykazano, iż uzyskany w procesie gazyfikacji gaz syntezowy posiadał wyższą kaloryczność, jednak dodatkowy produkt procesu pirolizy karbonizat posiadał dobre właściwości do wykorzystania jako paliwo stałe.
    Źródło:
    Archives of Environmental Protection; 2015, 41, 3; 70-75
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wpływ obciążenia hydraulicznego Okresowego Bioreaktora Beztlenowego odciekami na warunki termiczne fermentacji oraz skład wytwarzanego biogazu
    Influence of Hydraulic Loading Rate of Sequence-Anaerobic-Bioreactor on Fermentation Conditions and Generation of Biogas
    Autorzy:
    Białowiec, A.
    Wiśniewski, D.
    Pulka, J.
    Wiśniewski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818579.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    biogaz
    odcieki
    recyrkulacja
    bioreaktor
    odpady komunalne
    temperatura
    biogas
    leachate
    recirculation
    bioreactor
    municipal solid waste
    temperature
    Opis:
    The technology of municipal solid waste biological treatment in Sequence-Anaerobic-Bioreactors consists an enhanced, and controlled fermentation occurring in waste heap having status of bioreactor. Comparing to traditional landfills, where also as an effect of biological processes biogas is generated, the organic waste stabilization is accomplished after 5 years. According to construction, and operation regime, the reactor is a sequence bioreactor having self-heating character. Waste, substrate, are delivered into bioreactor once time, bioreactor is closed, gas extraction and leachate recirculation system, and monitoring devices are installed. Finally mineral sealing is placed. From that moment optimization of conditions of fermentation process by gathering, treatment, and recirculation of leachate starts. Sequence-Anaerobic-Bioreactor has been implemented by USKOM Ltd. Enterprise in location of Kosiny Bartosowe near Mlawa. Bioreacto has total capacity of municipal solid waste 200000 Mg. The research on the influence of recirculation of leachate on Sequence-Anaerobic-Bioreactor, with hydraulic loading rate ranging from 0 to 4 mm/d, on fermentation conditions and biogas composition were done. The measurements of temperature inside the bioreactor, and gas composition in gas wells were executed. The implementation of leachate recirculation with hydraulic loading rate from 1 to 4 mm/d improved the fermentation conditions and quality of generated biogas. The hydraulic loading rate of leachate 1 mm/d has been proposed for application.
    Źródło:
    Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1259-1273
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Is the biochar produced from sewage sludge a good quality solid fuel?
    Autorzy:
    Pulka, J.
    Wiśniewski, D.
    Gołaszewski, J.
    Białowiec, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/204734.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    torrefaction
    sewage sludge
    biochar
    calorific value
    solid fuel
    ash
    Opis:
    The influence of sewage sludge torrefaction temperature on fuel properties was investigated. Non-lignocellulosic waste thermal treatment experiment was conducted within 1 h residence time, under the following temperatures: 200, 220, 240, 260, 280 and 300°C. Sawdust was used as lignocellulosic reference material. The following parameters of biochar have been measured: moisture, higher heating value, ash content, volatile compounds and sulfur content. Sawdust biochar has been confirmed to be a good quality solid fuel. High ash and sulfur content may be an obstacle for biochar energy reuse. The best temperature profile for sawdust torrefaction and fuel production for 1 h residence time was 220°C. At this temperature the product contained 84% of initial energy while decreased the mass by 25%. The best temperature profile for sewage sludge was 240°C. The energy residue was 91% and the mass residue was 85%. Higher temperatures in both cases caused excessive mass and energy losses.
    Źródło:
    Archives of Environmental Protection; 2016, 42, 4; 125-134
    2083-4772
    2083-4810
    Pojawia się w:
    Archives of Environmental Protection
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of leachate recirculation on biogas production in a landfill bioreactor
    Autorzy:
    Białowiec, A.
    Siudak, M.
    Jakubowski, B.
    Wiśniewski, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/206977.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    bioreactor
    municipal waste
    biogas production
    produkcja biogazu
    odpady komunalne
    bioreaktor
    Opis:
    The technology of municipal solid waste treatment in a landfill bioreactor is based on a system of controlled, enhanced fermentation of organic waste, which occurs in a heap having status of bioreactor. The enhancement of biogas production is done by leachate recirculation. In a landfill bioreactor, located in Kosiny Bartosowe, Poland, with capacity of 70 000 Mg of municipal solid waste, the research aiming on the determination of the influence of leachate recirculation on biogas generation was done. Experiments were done in two periods: just one month after bioreactor sealing with hydraulic loading rate (HLR) of 2 mm/d, and one year after bioreactor sealing with HLR of 3 mm/d. Doubling of biogas production from about 100 to 200 m3/h and the increase of methane content from 60 to 65% has been determined when 2 mm/d of HLR of leachate recirculation was applied. The implementation of HLR on the level 3 mm/d increased biogas production from 148 to 270 m3/d, and methane content from 62 to 64%. Leachate recirculation improved thermal conditions in bioreactor to typical meso-philic values.
    Źródło:
    Environment Protection Engineering; 2017, 43, 1; 113-120
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biosuszenie pofermentu z biogazowni rolniczych
    Biodrying of the Digestate from Agricultural Biogas Plants
    Autorzy:
    Białowiec, A.
    Wiśniewski, D.
    Pulka, J.
    Siudak, M.
    Jakubowski, B.
    Myślak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818636.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    poferment
    biosuszenie
    utrata masy
    temperatura
    digestate
    biodrying
    mass loss
    temperature
    Opis:
    Anaerobic digestion residue represents a nutrient rich resource which, if applied back on land, can reduce the use of mineral fertilizers and improve soil fertility. However, dewatering of digestate may be recommended in certain situation. Limited applicability of digestate as fertilizer may appear, especially in winter, during the vegetation period or in areas where advanced eutrophication of arable land and water bodies is developing. The use of digestate may be also governed by different laws depending on whether it is treated as fertilizer, sewage sludge or waste. The solution for thus problem may by application of biodrying process. The aim of this paper is to present the possibilities of digestate from agricultural biogas plant drying in biodrying process, and analysis of its kinetic and efficiency. Dewatered digestate from agricultural biogas plant, with initial moisture of 78%, was mixed with wood chips in proportion 45:55, respectively. The mixture was placed in container reactor, and aerated during 4 weeks. During the experiment the temperature in the reactor, weight of the digestate, and energy demand was measured. Due to biodrying process, with mean air flow rate 0.025 m3/kg.h, 502 kg mass loss was achieved, what consists 76% of the initial weight of the digestate. Mean temperature in the bioreactor during first 10 days, fluctuated between 55 to 60°C. After that, gradual decrease of the temperature to 40°C in the end of 3rd week was observed. During last week the intense cooling of the bioreactor to final temperature below 20°C was observed. It was determined, that digestate mass loss had I-order reaction character. The k constant rate value was estimated, which was on the level of 0.00068 [1/h]. Total energy demand was 14.792 kWh, what relates to 0.0295 kWh of used energy per kg of mass removed.
    Źródło:
    Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1554-1568
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Badania ruchowe prototypowego reaktora zgazowania biomasy
    Operational Studies of Prototype Biomass Gasification Reactor
    Autorzy:
    Wiśniewski, D.
    Piechocki, J.
    Białowiec, A.
    Pulka, J.
    Siudak, M.
    Jakubowski, B.
    Myślak, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818633.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    zgazowanie termiczne
    syngaz
    biomasa
    charakterystyka pracy
    dolnociągowy reaktor
    thermal gasification
    syngas
    biomass
    operation characteristics
    downward reactor
    Opis:
    Gasification reactors are devices for thermochemical biomass treatment. In such reactors, complex of mass, and heat exchange, interphase, and chemical processes occur. Designing a mathematical models of processes occurring in such devices requires expensive research, and leads not always to satisfying results. Moreover, some authors executed complex computational simulations of gasifying process aiming to approximate calculation of: composition of generated syngas, temperatures level in the reactor, and even simulations of two-phase flow of gas enriched in pollutants. In given article the initial research of prototype downward gasification reactor feed by model feedstock – wood pellets, has been presented. The construction of the reactor has been described. Particular parts of the reactor has been shown, and the concept of reactor controlling has been given. The gasification reactor tightness has been examined by testing the generated pressure in gasification chamber. Executed research aimed on testing the correctness of particular elements of the reactor work, and determination of motion characteristic for wide range of technological parameters. Static characteristics of bed temperature in the oxidation zone, and the converted biomass stream in function of gasifying agent have been determined. Additionally, the characteristics of removed carbonizate stream in function of grate rotation rate has been determined. In the further experiments the dynamic characteristics of gasification process in the prototype reactor will be tested. The composition of syngas generated from hardly treatable waste materials will be measured. Determined characteristics will be used for further experiments on designing of process control algorithms.
    Źródło:
    Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 1094-1112
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies