Szukana fraza: [Abstract = "The other two samples are mixtures with the addition of coke sludge in the amount of 5% \(B1\) and 15% \(B2\). The degree of decomposition of organic matter was 28% for control sludges and 27% and 24%, respectively, for sludge B1 and B2. The largest summary production of biogas was obtained for the control sludges \(5727 cm3\/dm3\)."]

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