Abstract
Composting fruit and vegetable waste from grocery stores on farms is a challenge due to the large quantity of liquid that leaches out. This leachate needs to be characterized for its effects on pla...
Highlights
Managing food waste is an issue of worldwide concern
Leachate physicochemical analyses The leachate obtained was brown with an unpleasant odor that could be attributed to the organic acids and volatile fatty acids produced from composting food waste (Kim, Kim, Shin, Hwang, & Lee, 2016)
The results of our study pointed out that the compost leachate contained plant nutrients that could be used on farms to close the plant nutrient and water cycles
Summary
Managing food waste is an issue of worldwide concern. clean and green technologies need to be optimized to prevent the dumping, landfilling, or incineration of food waste. For farm composting, a nitrogen (N) source is mixed with a carbon (C) source, such as manure or slurry with straw or other C sources In this Eastern Canada study, fruit and vegetable waste (d.w.) containing 1.7 g N/kg, 0.3 g P/kg and 2.4 kg K/kg was used instead of manure or slurry, decreasing the hygiene risk (Sall, Antoun, Chalifour, & Beauchamp, 2016). Some liquid percolated through the compost pile and ran off This complex wastewater leached out with minerals; suspended solids; particulates and soluble organic matter; and various oxidized, and other chemical by-products of the composting process. In the past, this leachate was lost to the soil and its environmental impact left unnoticed. Farmers were ready to use a common slurry spreader and follow the fertilization plan prepared by an agronomist to avoid soil P build up
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