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  • Author or Editor: Pat Bumpus x
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Food wastes were collected daily Monday through Saturday with approximately 25 tons of food waste delivered to the composting site each week. Collections sites included restaurants, super markets and a hospital. All food wastes were collected behind the counter to reduce paper and other extraneous materials. Food wastes were mixed with bulking agents in a ratio of 1 part leaves, 1 part woodchips to 1 part food waste by volume. Daily a bed of leaves and wood chips was prepared and covered with food waste, in rum the food wastes were capped with a mixture of wood chips and leaves to form a windrow. The windrow was turned three times a week with a scat style commercial compost turner. Oxygen content and temperature of the windrow were recorded daily. C:N ratio, pH, soluble nitrogen and volatile organic acids were determined monthly. At the end of the composting process, 90 days, Ni, Cd, Fe, Pb, Cr, Ar and Se levels in the compost were not present at toxic levels. Finished compost rested negative for salmonella and Fecal coliform pathogens.

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