期刊
BIODEGRADATION
卷 14, 期 1, 页码 51-56出版社
KLUWER ACADEMIC PUBL
DOI: 10.1023/A:1023538123655
关键词
aerobic biodegradation; elemental composition; organic fraction of municipal solid waste; stoichiometry
An elemental analysis was applied to describe the composition of the organic fraction of municipal solid waste (MSW). The initial elemental composition was constant at C5H8.5O4N0.2. The changes of the composition during the biodegradation process and the final waste composition were strictly dependent on the process conditions. The decrease in carbon content due to biodegradation increased with temperature at which the experiments were conducted, from 20% at 20degreesC to about 40% at 37 - 42 degreesC after 96 hours. It was correlated with the amount of oxygen that was utilised in the investigated processes of aerobic biodegradation of the waste suspension. The amount of oxygen required for biodegradation of organic fraction of MSW was estimated on the basis of stoichiometric equations and increased from 0.92 moles per 1 mole of waste at 20 degreesC to 1.6 moles at 42 degreesC within 96 hours of the experiments.
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