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2000

Sammendrag

Summary: This experiment simulate aerobic treatment to see if the field removal rates can be duplicated in the laboratory, and also to see if there are some physical or chemical factors that significantly influence this removal. The experiment used 3 leachates and 8 artificial samples with varying concentrations of Cl, TOC, Tot-N and Fe, and 4 controls. Leachate samples were collected from Dal Skog and Esval landfills. Some of the samples were centrifuged after respiration.The oxygen consumption in the leachate samples was considerably lower than in the artificial samples, probably due to inhibitory compounds in the leachate. Mean Cl removal was 21.6% for the leachate samples, 46.0% in the artificial samples and 9.97% in the controls. Only TOC showed significant influence on the oxygen consumption in the respirometer, both when measured in the artificial samples (p< 0.036) and for all samples (p