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    Wyświetlanie 1-6 z 6
    Tytuł:
    Recent Challenges of Biogas Production and its Conversion to Electrical Energy
    Autorzy:
    Syahri, Siti Noor Khaleeda Mhd
    Abu Hasan, Hassimi
    Abdullah, Siti Rozaimah Sheikh
    Othman, Ahmad Razi
    Abdul, Peer Mohamed
    Azmy, Raja Farzarul Hanim Raja
    Muhamad, Mohd Hafizuddin
    Powiązania:
    https://bibliotekanauki.pl/articles/2068475.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    biogas
    methane gas
    electrical energy
    anaerobic digestion
    energy
    Opis:
    A pressing concern of issues such as climate change has drawn main attention in the world. The burning of fossil fuels by human due to increasing energy demand in various sectors is one of the main factors that influence the climate change. This has resulted in the introduction of many renewable energy sources as alternatives to fossil fuels. Biogas is one type of renewable energy that has numerous advantages. The present review covers the recent challenges of biogas production and its conversion to electrical energy. This includes the substrates used, the operating parameters, and the pre-treatment used, which can be implemented to maximise the biogas yield. The challenges and potential of the generation of electricity from biogas were also discussed in this review. The results obtained in this review emphasise that biogas is a good renewable energy, as it solves multiple problems and at the same brings benefits to human beings in many ways.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 3; 251--269
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Water Lettuce (Pistia stratiotes L.) as a Potential Material for Biogas Production
    Autorzy:
    Cong, Nguyen Van
    Thanh, Tran Van
    Kha, Le Thi Mong
    Hoang, Nguyen Xuan
    Powiązania:
    https://bibliotekanauki.pl/articles/2105278.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    water lettuce
    anaerobic digestion
    renewable energy
    Opis:
    This study evaluated the biogas production potential of water lettuce (Pistia stratiotes L.) by batch anaerobic digestion under in-vitro conditions. Twenty-one litre-plastic jars were used to conduct 4 replications over 75 days. The results showed that solution temperature, pH and Eh were suitable for biogas production. More than 50% of the obtained CH4 was formed within 17–42 days after incubation. The maximum daily CH4 production was 0.052 L/gVS, whilst the daily H2S concentration was low, with a maximum value of 28 ppm within 14–21 d after incubation. Moreover, the peak of daily biogas production was seen at day 16 with production of 0.12 L/gVS. The results highlight that water lettuce biomass can be potentially used to produce high quality biogas in anaerobic incubation.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 6; 182--188
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Semi-Continuous Anaerobic Digestion of Water Hyacinth with Different Volatile Solid Levels for Biogas Production – A Mesocosm Experiment
    Autorzy:
    Thuan, Nguyen Cong
    Khanh, Huynh Cong
    Powiązania:
    https://bibliotekanauki.pl/articles/2202361.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    renewable energy
    semi-continuous anaerobic digestion
    volatile solid
    water hyacinth
    Opis:
    Water hyacinth (WH) biomass is one of the popular materials in the Vietnamese Mekong Delta, a potential substrate for biogas production. The effectiveness of utilizing WH for producing biogas under anaerobic digestion was demonstrated in the previous studies, but the research was focused on the loading rate of about 1.0% volatile solid (VS). Therefore, in the present study, a semi-continuous anaerobic digestion experiment was conducted with the five levels of VS, including 1.0%VS, 1.5%VS, 2.0%VS, 2.5%VS, and 3.0%VS, to examine how loaded VS can affect biogas production. Each treatment was designed with three replications over 60 days. The measured parameters included pH, temperature (Temp; °C), redox potential (Eh; mV), daily produced biogas volume (L), cumulative biogas volume (L), and methane (CH4) concentration (%) during the 60 days of the experiment. The obtained results showed that pH, tempt, and Eh parameters did not negatively affect biogas production. However, the volume of daily biogas in the treatment of 3.0%VS was higher than in other treatments. In addition, the cumulative biogas volume in the treatment of 3.0%VS was the highest and significantly different between all reactors (p<0.05). Meanwhile, the treatment of 1.0%VS was known with the lowest values. The study explored that the volume of biogas could be increased when the organic loading rate VS is increased.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 2; 230--237
    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
    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
    Tytuł:
    Analiza gospodarki osadowej i biogazowo-energetycznej w oczyszczalni ścieków w Opolu
    Analysis of sewage sludge and biogas-energy management at the Opole wastewater treatment plant
    Autorzy:
    Szczyrba, Paulina
    Masłoń, Adam
    Czarnota, Joanna
    Olszewski, Kamil
    Powiązania:
    https://bibliotekanauki.pl/articles/399850.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    osady ściekowe
    fermentacja beztlenowa
    biogaz
    energochłonność oczyszczalni ścieków
    sewage sludge
    anaerobic digestion
    biogas
    energy consumption
    wastewater treatment plant
    Opis:
    Zwiększające się wymagania oczyszczania ścieków oraz rozwój systemów oczyszczania ścieków, unieszkodliwiania i przeróbki osadów ściekowych powodują znaczny wzrost zapotrzebowania na energię elektryczną i cieplną. Alternatywnym sposobem na pozyskiwanie taniej energii jest wykorzystywanie biogazu wytworzonego w procesie fermentacji z osadów ściekowych. W pracy przedstawiono analizę gospodarki osadowej i biogazowo-energetycznej w oczyszczalni ścieków w Opolu w aspekcie uzyskiwania biogazu i jego wykorzystania do produkcji energii elektrycznej. Układ biogazowo-energetyczny w rozpatrywanym okresie funkcjonował prawidłowo. W dwóch agregatach prądotwórczych wyprodukowano z biogazu łącznie 7,26 GWh energii elektrycznej, co pozwoliło na pokrycie blisko 35% zapotrzebowania na energię elektryczną.
    Increasing requirements of wastewater treatments and the development of wastewater treatment and sewage sludge systems cause a significant increase in the demand for electricity and heat. An alternative way to obtain cheap energy is to use biogas produced in the anaerobic digestion process from sewage sludge. The paper presents an analysis of sewage sludge and biogas-energy management at the wastewater treatment plant in Opole in the aspect of obtaining biogas and its use for electricity production. The biogas-energy system was functioning properly in 2017–2019. A total of 7.26 GWh of electricity was produced from biogas in two power generators, which allowed to cover nearly 35% of the demand for electricity.
    Źródło:
    Inżynieria Ekologiczna; 2020, 21, 2; 26-34
    2081-139X
    2392-0629
    Pojawia się w:
    Inżynieria Ekologiczna
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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