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    Wyświetlanie 1-5 z 5
    Tytuł:
    Food Waste Management Using the Hermetia Illucens Insect
    Autorzy:
    Czekała, Wojciech
    Janczak, Damian
    Cieślik, Marta
    Mazurkiewicz, Jakub
    Pulka, Jakub
    Powiązania:
    https://bibliotekanauki.pl/articles/123656.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    waste management
    food waste
    environmental protection
    circular economy
    Hermetia illucens
    Opis:
    In modern agricultural biogas plants, the biowastes are being increasingly used for the biogas production. The food waste is also widely used in larvae breeding. This is an important because, based on biowaste, its proper management and green energy production is possible. This study aims to determine the biogas and methane efficiency of the Hermetia illucens larvae that were fed using the food waste. In the research on the biogas and methane efficiency, the Hermetia illucens larvae were used. The total solids (TS) of the substrate equals 30.35%, and the volatile solids (VS) content was 92.31% of TS. The larvae were fed only with the food waste of plant origin. The obtained substrates were homogeneous. The experiment was carried out under mesophilic anaerobic digestion conditions – 39°C in the 21-chamber biofermentor set in the Institute of Biosystems Engineering in Poznań University of Life Sciences. The anaerobic digestion process in the batch reactor ran correctly. Fermentation inhibition was not detected. The biogas efficiency for larvae amounted to 198.75 m3∙Mg-1 fresh mass (FM). On the other hand,the methane efficiency, amounted to 127.73 m3∙Mg-1, at the methane concentration of 64.27%. On the basis of the research, it was found that the larvae feeding on food waste can be used directly as anaerobic digestion in the bioconversion process.
    Źródło:
    Journal of Ecological Engineering; 2020, 21, 4; 212-216
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Use of Biochar for the Production of Organic Fertilizers
    Autorzy:
    Czekała, Wojciech
    Jeżowska, Aleksandra
    Chełkowski, Dawid
    Powiązania:
    https://bibliotekanauki.pl/articles/124059.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    biochar
    fertilizer
    agricultural land
    environmental protection
    waste management
    Opis:
    The fertilizer management is one of the greatest challenges of agriculture in the 21st century. The growing demand for food, along with the similar amount of arable land, creates the necessity of increasing the crop yields in a given area. Due to the fact that the production and use of mineral fertilizers often influence the environment in a negative way, for many years more attention has been paid to natural and organic fertilizers. Their advantage is the transfer of not only organic matter but also nutrients to the soil. In connection with the structural changes in agriculture, the production of natural fertilizers, especially manure decreases, but at the same time, the production of other organic fertilizers, e.g. composts or biochar increases. The aim of the work was to present the possibility of using biochar in the production of organic fertilizers. Moreover, the project concept for obtaining an organic fertilizer containing biochar and its application in the processes of biological transformation of waste was presented.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 1; 1-8
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Waste as substrates for agricultural biogas plants : A case study from Poland
    Autorzy:
    Czekała, Wojciech
    Pulka, Jakub
    Jasiński, Tomasz
    Szewczyk, Piotr
    Bojarski, Wiktor
    Jasiński, Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/2203541.pdf
    Data publikacji:
    2023
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    biofuels
    biogas plant
    circular economy
    renewable energy
    waste management
    waste to energy
    Opis:
    Energy production from renewable sources is one of the main ways to fight against global warming. Anaerobic digestion process can be used to produce biogas containing methane. In the light of the growing demand for substrates, a variety of raw materials are required. These substrates should be suitable for anaerobic digestion, and processing them need to provide the desired amount of energy. This paper aims to discuss the agricultural biogas market in Poland, its current state, and the possibility of development during energy transformation, in particular in terms of using waste as a substrate for energy production. In February 2022, there were 130 agricultural biogas plants registered in Poland. On the other hand, in 2020, 4,409,054.898 Mg of raw materials were used to produce agricultural biogas in Poland. Among all the substrates used, waste played a special role. With the right amount of raw materials and proper management of a biogas plant, it is possible to produce electricity and provide stable and predictable heat supply. Bearing in mind the development of the Polish and European biogas markets, attention should be paid to ensure access to raw materials from which chemical energy in the form of biogas can be generated. Due to limited access to farmland and the increasing demand for food production, one should expect that waste will be increasingly often used for biogas production, especially that with high energy potential, such as waste related to animal production and the meat industry.
    Źródło:
    Journal of Water and Land Development; 2023, 56; 45--50
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Anaerobic digestion and composting as methods of bio-waste management
    Porównanie procesów beztlenowego i tlenowego zagospodarowania bioodpadów
    Autorzy:
    Czekała, Wojciech
    Nowak, Mateusz
    Bojarski, Wiktor
    Powiązania:
    https://bibliotekanauki.pl/articles/8778980.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    biomass
    waste
    anaerobic digestion
    composting
    circular economy
    waste management
    biomasa
    fermentacja beztlenowa
    kompostowanie
    gospodarka cyrkularna
    zarządzanie odpadami
    Opis:
    The management of biodegradable waste from various sectors of economy is an essential element in terms of environmental protection. The paper discusses issues related to the possibility of bio-waste treatment using anaerobic digestion technologies and composting processes, highlighting the conditions for the processes and their advantages and disadvantages. The challenges of overproduction of bio-waste faced by highly developed countries around the world are also presented. Research showed that the anaerobic digestion of this waste combines both biofuel production and a circular economy. The popularity of this method is linked, among others to a low cost of raw materials and wide range of possible uses for biogas (i.e. electricity, heat, or biomethane). In addition, an alternative bio-waste management option, compost production, was discussed. The study aimed to compare anaerobic and aerobic bio-waste management processes.
    Zagospodarowanie odpadów biodegradowalnych pochodzących z różnych gałęzi gospodarki jest niezbędnym elementem w aspekcie ochrony środowiska. W artykule omówione zostały zagadnienia związane z możliwością przetwarzania bioodpadów wykorzystując technologie fermentacji metanowej i procesu kompostowania, z podkreśleniem warunków prowadzenia procesów oraz ich wad i zalet. Przedstawione zostały także wyzwania związane z nadmierną produkcją bioodpadów, przed którymi stoją państwa wysokorozwinięte na całym świecie. Prowadzone badania pokazują, że fermentacja beztlenowa omawianych odpadów łączy zarówno produkcję biopaliw oraz gospodarkę obiegu zamkniętego. Popularność omawianej metody jest związana m.in. z niskim kosztem surowców oraz szeroką możliwością wykorzystania produktu jakim jest biogaz (tj. elektryczność, ciepło lub biometan). Ponadto omówiona została tematyka związana z alternatywną możliwością zagospodarowania bioodpadów jaką jest produkcja kompostu. Celem pracy było porównanie procesów beztlenowego i tlenowego zagospodarowania bioodpadów.
    Źródło:
    Agricultural Engineering; 2023, 27, 1; 173--186
    2083-1587
    Pojawia się w:
    Agricultural Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biogas Production from Raw Digestate and its Fraction
    Autorzy:
    Czekała, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/124971.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    digestate
    digested pulp
    agricultural biogas plants
    anaerobic digestion
    waste management
    renewable energy sources
    circular economy
    Opis:
    The digestate from an agricultural biogas plant is most commonly used as a fertilizer. However, many studies are being performed to develop other ways of managing this substrate. The aim of this study was to determine the biogas and methane efficiency for digestate as well as the solid and liquid fractions from separation of digestate. The material for the research came from a real scale agricultural biogas plant. The separation of the digestate into two fractions was carried out using a mechanical press. The studies on the methane fermentation process were carried out under mesophilic conditions (37–39°C) in the Institute of Biosystems Engineering at the Poznań University of Life Sciences. It was found that the biogas and methane efficiency for the raw digestate and liquid fraction obtained from its separation is very low. For raw digestate it was 2.9 m3 of biogas from 1 Mg fresh matter (FM), including 1.58 m3 methane. For liquid fraction after separation, the biogas efficiency amounted to 1.52 m3 from 1 Mg, including 0.78 m3 of methane. In turn, for the solid fraction, the biogas efficiency was 102.93 m3∙Mg-1, including 54.99 m3∙Mg-1 of methane. The research results indicate that the possibility of using the digestate solid fraction for energy production (e.g. secondary methane fermentation) or the production of solid biofuels.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 6; 97-102
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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