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Wyświetlanie 1-5 z 5
Tytuł:
Do the degradable/biodegradable plastic materials decompose in domestic compost bin?
Czy degradowalne/biodegradowalne tworzywa sztuczne rozkładają się w domowym kompostowniku?
Autorzy:
Vaverková, M.
Adamcová, D.
Klapsiová, V.
Powiązania:
https://bibliotekanauki.pl/articles/125808.pdf
Data publikacji:
2014
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
biodegradable waste
biodegradability
compostability
degradation
home composting
plastic
odpady biodegradowalne
biodegradacja
kompostowalność
degradacja
przydomowe kompostowanie
tworzywa sztuczne
Opis:
Biodegradation of plastic materials advertised as degradable/biodegradable or certified as compostable was tested in composting conditions (domestic compost bin). This study was carried out in order to assess the biodegradability of the samples under real conditions of home composting, and to find out whether there were any physical changes in terms of their thickness when exposed to natural composting environment. The samples were obtained from retail chains in the Czech Republic, Poland, Slovakia and the UK. The experimental samples were placed in home compost bins and were checked and visually assessed during the experiment, which lasted 14 weeks. From the results it can be concluded that the polyethylene samples with the additive (samples A, B and E) have not decomposed, their colour has not changed and that no degradation neither physical changes has occurred. Samples C, F have not decomposed. Samples certified as compostable G, H and I have not decomposed. Sample D exhibited the highest decomposition rate. The main conclusion from this study is that degradable/biodegradable plastics or plastics certified as compostable are not suitable for home composting.
Biodegradacja materiałów sztucznych reklamowanych jako degradowalne/biodegradowalne oraz certyfikowanych jako kompostowalne była badana w przydomowych warunkach kompostowania (w kompostownikach). Badania zostały przeprowadzone w celu oceny rozkładu próbek w rzeczywistych warunkach kompostowania oraz w celu sprawdzenia, czy badane próbki wykazują jakiekolwiek zmiany fizyczne. Badane materiały pochodziły z sieci sklepów handlowych w Czechach, Polsce, Słowacji i Wielkiej Brytanii. Umieszczone w domowym kompostowniku próbki sprawdzano i oceniano wzrokowo podczas eksperymentu, który trwał 14 tygodni. Na podstawie wyników można stwierdzić, że próbki wykonane z polietylenu z dodatkami (próbki A, B i E) nie uległy rozkładowi, ich barwa nie zmieniła, jak też nie wystąpiła degradacja fizyczna, nie rozłożyły się także próbki C, F. Również próbki certyfikowane jako kompostowalne G, H i I nie uległy rozkładowi. Próbka D wykazywała najwyższy stopień rozkładu. Z przeprowadzonego doświadczenia wynika, że degradowalne/biodegradowalne oraz certyfikowane jako kompostowalne tworzywa sztuczne nie nadają się do przydomowego kompostowania.
Źródło:
Proceedings of ECOpole; 2014, 8, 1; 87-94
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
How do degradable/biodegradable plastic materials decompose in home composting environment?
Autorzy:
Vaverková, M.
Adamcová, D.
Zloch, J
Powiązania:
https://bibliotekanauki.pl/articles/124166.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biodegradation
degradability
degradable/biodegradable plastics
home composting
waste treatment
Opis:
This paper provides information about biodegradability of polymeric (biodegradable/ degradable) materials advertised as 100%-degradable or certified as compostable, which may be a part of biodegradable waste, in home composting conditions. It de-scribes an experiment that took place in home wooden compost bins and contained 9 samples that are commonly available in retail chains in the Czech Republic and Poland. The experiment lasted for the period of 12 weeks. Based on the results thereof it can be concluded that polyethylene samples with additive (samples 2, 4, 7) have not decomposed, their color has not changed and that no degradation or physical changes have occurred. Samples 1, 3 and 5 certified as compostable have not decomposed. Sample 6 exhibited the highest decomposition rate. Samples 8, 9 (tableware) exhib-ited high degree of decomposition. The main conclusion from this study is that degradable/ biodegradable plastics or plastics certified as compostable are not suitable for home composting.
Źródło:
Journal of Ecological Engineering; 2014, 15, 4; 82-89
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Change of physical properties of biodegradable waste during decomposition
Autorzy:
Stejskal, B.
Powiązania:
https://bibliotekanauki.pl/articles/61136.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
physical property
property change
biodegradable waste
waste
decomposition
composting
home composting
biodegradable waste composting
Opis:
The article mentions results from changes of physical properties of composted material during the composting process. Composting conditions in compost pile were simulated in five vessels with volume of 90 m3 under home conditions. Composted material was variously modified (mixing and turning, moistening, adding fresh material) during the composting process. Temperature and oxygen concentration inside vessels were measured, as well as reduction in volume of compost material during time, pH and electric conductivity of selected compost. It appeared that the temperature of the compost material in small volume in the compost pile was lower than the requirement for hygienization of the composted material. The temperature higher than 50°C was measured only sporadically and already during the first week of the experiment temperatures inside the vessels corresponded with outside temperatures. Oxygen concentration in all vessels was sufficient to ensure the aerobic process during the entire period of the experiment. The lowest measured oxygen concentration was higher than 10 %. These low values were measured only during the first week of the experiment, during the following weeks the oxygen concentrations exceeded 15% only with small exceptions. Reduction in volume of the composted material highly depended on whether the compost material was mixed and turned during the course of the composting process. Mixed and turned composted material was reducing its volume significantly, quicker than the composted material not being mixed and turned. The effect of moistening on the composted material was not proved. Measured pH values and electric conductivity (EC) values of the compost material from selected vessel K2 (composted material being mixed and turned, moistened, fresh compost material was not added) showed values fully corresponding with a quality well-matured compost. The average pH value was 7.76 with a standard deviation of 0.04 and the average EC value was 1.79 mS.cm-1 with a standard deviation of 0.27.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2012, 1/IV
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of the composter volume required for garden grass treatment
Autorzy:
Stejskal, B.
Powiązania:
https://bibliotekanauki.pl/articles/61290.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
determination
composter volume
garden grass
grass treatment
biodegradable waste
decomposition
home composting
Opis:
The paper presents results from an experiment focused on the establishment of total grass biomass amount grown in the house garden during the growing season and volume of the domestic composter required for biomass treatment. Grass in the experimental part of the garden (area 43.75 m2) was cut at regular intervals (1x2 weeks) during the growing season. The cut green biomass was mixed with wood shavings at a volume ratio of 3:1 and the mixed material was placed inside a home composter (volume 300 dm3). During the composting process, the blended biomass was mixed and aerated for 1x4 weeks. The total amount of grass biomass from the experimental plot was 44.8 kg; the amount of added wood shavings was 13.9 kg. The total volume of raw mixture (fresh) was nearly 370 dm3 but due to the composting process during the growing season, the volume of composted raw materials was reduced at the end of the growing season to about 168 dm3. The measured and calculated values show that the composter volume required for the treatment of grown-up and cut grass biomass per 1m2 of garden lawn is 3.83 dm3. Due to fluctuations of grass biomass production in individual years, it is recommended to increase the required composter volume to 4 dm3 per 1m2 of garden lawn.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2013, 2/IV
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Home Composting of Food Wastes Using Rotary Drum Reactor as an Alternative Treatment Option for Organic Household Wastes
Autorzy:
Sayara, Tahseen
Shadouf, Mahmoud
Issa, Hour
Obaid, Hanan
Hanoun, Ruba
Powiązania:
https://bibliotekanauki.pl/articles/2105275.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
waste management
food wastes
home composting
rotary drum composter
Opis:
In this research, the application of home composting system as an alternative approach for household organic waste management was investigated. A rotary drum home composter made of galvanized steel was designed and used for the composting process. It consists of two chambers of about 170 L each, and is equipped with sufficient holes to ensure aerobic conditions as well as valves for leachate drainage. Different parameters, including using waste to bulking agent ratio, co-composting using animal manure and introducing charcoal with the feedstock were investigated. The designed reactor proved its efficiency for composting purposes, according to the obtained results regarding the degradation of the organic waste with ease operation and monitoring. The highest reduction volume (85%) in the composted materials was in treatment of 1:0.5 waste to bulking agent, whereas co-composting using animal manure better enhanced the organic matter degradation, as the highest decrease in the C/N ratio (about 62%) was observed in this treatment. No significant effect of the charcoal war recorded regarding the degradation process, but was clear in reducing odors.
Źródło:
Journal of Ecological Engineering; 2022, 23, 6; 139--147
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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