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KMID : 1024520030120040461
Journal of the Environmental Sciences
2003 Volume.12 No. 4 p.461 ~ p.467
The Physico-chemical Characteristics of Municipal Solid Wastes from Four Different Sources in Daegu City
Noh Sook-Hyun

Lee Dong-Hoon
Choi Choong-Ryeol
Park Man
Park Byoung-Yoon
Choi Jyung
Abstract
This study was conducted to provide the basic information to know reasonable method f3r the removal and treatment of municipal solid wastes(MSWs). MSWs four different sources(apartment residence, commerce, office/industry) in Daegu city were collected, and bulk density, physical composition, moisture, combustible, ash, elements and heating values were investigated. The values of bulk density were at range of 0.30¡­0.41ton/m. The percentages of foods, papers, vinyls/plastics, textiles, rubbers/leathers, metals and glasses/ceramics of wet muncipal solid wastes from three sources except office/industry were at range of 27.3¡­46.4%, 21.2¡­38.4%, 10.3¡­11.9%, 3.8¡­5.2%, 0.5¡­1.7%, 6.9¡­8.7% and 1.9¡­2.6% respectively. The percentages of papers, foods, vinyls/plastics, textiles, rubbers/leathers, metals and glasses/ceramics of dry muncipal solid wastes from three sources except office/industry were at range of 21.1¡­40.4%, 14.2¡­30.1%, 15.2¡­17.8%, 4.0¡­6.0%, 0.9¡­2.8%, 12.2¡­14.1% and 3.1¡­3.7£¥ respectively. The moisture contents of foods, woods, textiles and papers in wastes were at range of 65.7¡­76.2%, 34.6¡­50.0%, 22.2¡­44.8 and 30.6¡­44.4% respectively. The carbon contents of vinyls/plastics, rubbers/leathers, textiles, woods, papers and foods in wastes were at range of 75.88¡­79.87%, 58.24¡­70.74%, 45.23¡­51.63%, 42.29¡­45.58%, 40.19¡­48.4% and 25.86¡­36.25% respectively. The low heating values of foods, papers, woods, textiles, rubbers/leathers and vinyls/plastics by Dulong¡¯s law were at range of 178¡­1,353kcal/kg, 770¡­1,660kcal/kg, 995¡­1,629kcal/kg, 2,133¡­2,432kca1/kg, 4,200¡­7,275 kcal/kg and 6,384¡­8,722kcal/kg respectively, and the high heating values of them were at range of 782¡­2,056 kcal/kg, 2,459¡­3,314kca1/kg, 3,056¡­3,592kcal/kg, 4,381¡­5,087kca1/kg, 5,005¡­8,066kca1/kg and 10,032¡­10,739 kcal/kg respectively.
KEYWORD
Municipal solid wastes, Bulk density, Heating values
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