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- W2296723478 abstract "The physico-chemical characteristics of municipal solid waste (MSW) is very important to manage MSW and estimate the type and the capacity of wastes treatment facility. In order to effectively treat municipal solid wastes, production and component of wastes must be known. The management of the MSWs treatment facilities is so poorly accomplished because the MSWs treatment facility has been operated without the systematic information. Hence, it is necessary to build the data-base for the characteristics of MSWs. To estimate the various properties of the waste from Chung-ju city, the physical composition, the apparent density, the proximate analysis, the elements contained, and caloric value of the waste have been analyzed, four times a year by the season, over the three years, in 2004, 2006, and 2009, depending on the types of the area, a exclusive residential area, a collective residential area, commercial area and surrounding outer area. The physical compositions of combustibles of MSW were 87.6~91.5% and non-combustibles of MSW were 8.5~12.4% and the physical composition ratio of solid wastes accounts for papers 24.4~33.0%, wood 1.2~1.6%, rubbers & leathers 2.2~2.6%, plastics 5.7~6.5% and the portion of food and vegetable wastes in the physical composition was sharply down from 38.8% to 20.9% and 17.4%. The apparent densities were 114.0~209.8 kg/m and the water contents of the proximate analysis were sharply decreased from 40.5% on average to 26.1% and 18.8%, with the introduction of the quantity-based waste charge system and the settlement of the segregated garbage collection system in 2005. Chemical compositions were carbon 49.4~50.0%, hydrogen 6.7~6.8%, oxygen 39.4~39.6%, nitrogen 1.9~2.2%. According to above, the variation of the caloric value increased gradually, and to see the change of minimum caloric value from the standard of the Environment Public Corporation, it was from 1,529 kcal in 2004 to 2,441 kcal, to 2,932 kcal in 2009 on average and is expected to increase more in 2011 now." @default.
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- W2296723478 date "2011-01-01" @default.
- W2296723478 modified "2023-09-26" @default.
- W2296723478 title "The characteristics of municipal solid waste heating value changes in Chung-Ju city" @default.
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