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http://dx.doi.org/10.17137/korrae.2017.25.4.5

A Study on Estimation of Recycling Potential by Thermal Recovery of Landfilled Sludge  

Moon, Heesung (Waste-to-Energy Research Division, National Institute of Environmental Research)
Kim, Kyuyeon (Waste-to-Energy Research Division, National Institute of Environmental Research)
Son, Jihwan (Waste-to-Energy Research Division, National Institute of Environmental Research)
Jeon, Taewan (Waste-to-Energy Research Division, National Institute of Environmental Research)
Shin, Sunkyoung (Waste-to-Energy Research Division, National Institute of Environmental Research)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.25, no.4, 2017 , pp. 5-13 More about this Journal
Abstract
With the purpose of energy recovery from sludge having calorific value as fuel we investigated the current status and characteristics of sludge in Korea in order to understand the type and amount of sludge that can recover energy. 'The Status Report on Waste Generation and Treatment in Korea' announced that 152 million tons of wastes were generated nationwide in 2015 and 9.2 % of the whole waste disposed into landfills which includes 15.1 % of the total industrial wastes. The average of upper calorific values of sewage sludge was 3,021 kcal/kg and that of wastewater sludge was 2,472 kcal/kg respectively. In order to determine the sludge as fuel, each correlations between calorific value, carbon content and combustibility ratio were evaluated. In the study, the current status and characteristics of sludge in Korea were investigated in order to understand the type and amount of sludge as fuel to recover energy. It is predicted that if the energy of sludge having a calorific value of 6 MJ/kg($${\sim_=}1,500kcal/kg$$) or more is recovered as fuel, the amount of the sludge disposed into landfills can be reduced about 40 %.
Keywords
Landfill reduction; Sludge; Calorific value; Energy recovery;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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