연구홍보포털

논문 초록 (Abstract)

This study analyzed the physicochemical properties and combustion characteristics of dried food waste and agriculturalby-products to evaluate the feasibility of biowaste as a solid fuel product. The drying performance of food waste wasconfirmed by using a closed steam recirculation dryer and an automatic shutdown control system equipped with a moistureintensity sensor. Elementary analysis, proximate analysis, calorific value analysis, and TGA analysis were conducted on4 types of food waste samples including coffee grounds and 3 types of agricultural by-product samples. When theautomatic shutdown control system was applied, the drying performance and drying efficiency were improved by 10.7%and 10.6%, respectively, and it was possible to obtain the effect of reducing the drying time and energy consumed fordrying. The moisture content of the dried food waste and agricultural by-product was 0.5 ~ 9.14wt.%, and the ash contentof them was 3.3 ~ 12.5wt.%, which satisfied the quality standards of Bio-SRF. The low calorific value of dried food wastewas 4,000 ~ 4,710 kcal/kg, and the low calorific value of agricultural by-products was 3,250 ~ 3,770 kcal/kg. Dried foodwaste and agricultural by-products meet the Bio-SRF standards and have a high low calorific value. Therefore, it is judgedthat if the drying technology applied with the automatic shutdown control system is used for solid fuel manufacturing,it can contribute to vitalizing the domestic SRF market.