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http://dx.doi.org/10.17137/korrae.2022.30.4.101

A Study on Combustion Characteristics for Dry Food Waste  

Sang, Byoungchan (Department of Environmental Engineering, Hanbat National University)
Lee, Seungjeong (Department of Environmental Engineering, Hanbat National University)
Lee, Doyeon (Department of Civil and Environmental Engineering, Hanbat National University)
Ohm, Taein (Department of Civil and Environmental Engineering, Hanbat National University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.30, no.4, 2022 , pp. 101-108 More about this Journal
Abstract
This study analyzed the physicochemical properties and combustion characteristics of dry food waste to evaluate the possibility of using food waste as a solid refuse fuel (SRF). The characteristics of dry food waste as a fuel were analyzed by comparing the difference in properties with SRF, and the combustion characteristics after conversion into fuel were identified. Ultimate analysis, proximate analysis, calorific value analysis, and TGA analysis were conducted using two types of food waste and two types of SRF, and the following results were obtained. The moisture content and ash content of dry food waste were 1.7~10.0 wt.% and 7.8~11.7 wt.%, respectively, which satisfied the quality standards for SRF. The low calorific value of dry food waste was 4,000 ~ 4,720 kcal/kg, which was higher than the quality standard of 3,500 kcal/kg for SRF. As a result of TGA analysis of dry food waste, the combustion reaction started at about 200 ℃ and the highest burning rate was at about 500 ℃. After moisture evaporation between 100 and 200 ℃, initial volatile matter, carbon and residual volatile matter were released and burned between 200 and 500 ℃. Based on the high calorific value and low moisture and ash content of dry food waste, it is considered that it is possible to convert dry food waste into SRF through the application of efficient drying technology and strict quality standard inspection in the future.
Keywords
Food waste; SRF; Combustion characteristics; TGA;
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Times Cited By KSCI : 1  (Citation Analysis)
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