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Journal of the Korean Society for Environmental Analysis 2014;17(4):215-222.
A Study on the Characteristic Analysis of Composting of Food Waste Added with Wood Biomass Generated in City
도시 내 발생 임목폐기물을 첨가한 음식물류 폐기물의 퇴비화 특성 분석에 관한 연구
김남찬, 김용태, 이희진, 김민아, 문유찬, 백승목
광운대학교
Abstract
This study was conducted to investigate how to reduce the quantity of food waste and CO 2 in the effluentin an eco-friendly way. Experiments were carried out to mix coarse-shredding wood chip, primary-fine-shreddingwood chip, secondary-fine-shredding wood chip and composting wood chip with food waste by the proportionof 8:2, 7:3, 6:4, and 5:5, respectively. When the food waste was mixed with coarse-shredding woodchip by the proportion of 7:3 and 6:4, the percentage of water content was 55.0% and 53.2%, respectively. When the food waste was mixed with primary-shredding wood chip by the proportion of 6:4, the percentageof water content was 57.5%. The proportions of combustible components excluding composting wood chipranged from 34.97% to 52.88% when biomass was added to the food waste. The C/N ratio of the mixture offood waste and biomass ranged from 15.32 to 21.66, which was lower than the standard 25 to 35. This indicatesthat it is necessary to add a material with a high C/N ratio. The salinity in food waste-biomass mixture rangedfrom 0.65% to 0.9%.
Key Words: Composting, Wood Biomass, Food Waste, Shredding Wood Chip


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