In Korea, municipal solid waste (MSW) treatment is conducted by converting wastes into energy resources using the mechanicalbiological\r\ntreatment (MBT). The small size MSW to be separated from raw MSW by mechanical treatment (MT) is generally\r\ntreated by biological treatment that consists of high composition of food residue and paper and so forth. In this research, the\r\nhydrothermal treatment was applied to treat the surrogate MT residue composed of paper and/or kimchi. It was shown that the\r\nhydrothermal treatment increased the calorific value of the surrogate MT residue due to increasing fixed carbon content and\r\ndecreasing oxygen content and enhanced the dehydration and drying performances of kimchi. Comparing the results of paper\r\nand kimchi samples, the calorific value of the treated product from paper was increased more effectively due to its high content of\r\ncellulose. Furthermore, the change of the calorific value before and after the hydrothermal treatment of the mixture of paper and\r\nkimchi can be well predicted by this change of paper and kimchi only. The hydrothermal treatment can be expected to effectively\r\nconvert high moisture MT residue into a uniform solid fuel.
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