Composting of Yard Waste and Wastewater Treatment Plant Sludge Mixtures |
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| Authors: | DR Reinhart AR deForest SJ Keely D R Vogt |
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| Institution: | 1. Civil and Environmental Engineering Department, University of Central Florida;2. Orange County, Florida Public Utilities Division;3. Post, Buckley, Schuh &4. Jernigan, Inc. |
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| Abstract: | Composting of yard waste and sludge/yard waste mixtures was investigated during laboratory and field testing. A strong correlation between moisture content and windrow peak temperatures was observed. Odors were detected at cocomposting windrows when temperatures exceeded 54°C. The sludge to yard waste mixture ratio was found to affect resulting compost particle size and, consequently, oxygen transport. Compost quality was excellent, with pesticides below detection level and low concentrations of heavy metals. |
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