Effects of the Solubilisation of the Cod of Municipal Waste in Thermal Disintegration

• Autorzy: Myszograj S.

Warianty tytułu

PL

Efektywność upłynnienia ChZT odpadów komunalnych w dezintegracji termicznej

• Języki publikacji: EN

Abstrakty

EN

This paper presents the content changes in the Chemical Oxygen Demand (COD) solubilised in hydrolisates obtained from thermally disintegrated municipal waste biofractions. A series of tests related to biowaste undergoing thermal treatment at the following temperatures: 55, 75, 95, 115, 135, 155 and 175°C were conducted for 0.5, 1 and 2 hours. The highest increase in COD solid fraction solubilisation (238%) was observed for the samples disintegrated at 175°C for 2 hours. The values of the reaction rate coefficient k₂₀ = 0.6 d^-1 and temperature coefficient θ = 1.023 were determined. Statistical analysis of the multiple regression (correlation coefficient R = 0.89) showed that the temperature has a greater impact on COD solid fraction solubilisation - determined β = 0.66. The multiple correlation coefficient for the treatment time was β = 0.61.

PL

W artykule omówiono zmiany udziału ChZT rozpuszczonego w hydrolizatach uzyskanych z dezintegrowanej termicznie bioofrakcji odpadów komunalnych. Wykonano serie badań, w których bioodpady poddawano obróbce w temperaturach 55, 75, 95, 115, 135, 155, 175°C w czasie 0,5, 1 i 2 godzin. Największy wzrost upłynnienia frakcji stałej ChZT (238%) uzyskano dla próbek dezintegrowanych w temperaturze 175°C w czasie 2 godzin. Wyznaczono wartość współczynnika szybkości reakcji k₂₀=0,096 h<sup-1</sup> i współczynnika temperaturowego θ=1,053. Analiza statystyczna wyników badań wykazała, że większy wpływ na efekt dezintegracji ma temperatura, niż czas obróbki.

Słowa kluczowe

EN

Biodegradable fraction of municipal waste; thermal disintegration; Chemical Oxygen Demand (COD)

PL

bioodpady; dezintegracja termiczna

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archives of Environmental Protection
• Rocznik: 2013
• Tom: Vol. 39, no. 2
• Strony: 57--67
• Opis fizyczny: Bibliogr. 36 poz., tab., wykr.

Twórcy

autor

Myszograj S.

• University of Zielona Gora The Institute of Environmental Engineering Z. Szafrana 15, 65-417 Zielona Gora, Poland

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