Abstract
To ascertain the possibility of producing refuse derived fuel (RDF) using waste plastic film and sewage sludge, the current state of waste plastic film and sewage sludge generation was investigated and the heavy metal components and heating values for those materials were analyzed. At this time waste plastic film from agricultural production is being discarded in the fields and sewage sludge is being buried in landfills or discharged into the ocean, resulting in land and ocean pollution in Korea. Waste plastic film from mulching operations on farm land and sewage sludge could be used to produce RDF if they are mixed in the proper ratio to get the heating value required for standard RDF. The Hg, Cd, Pb and As content did not exceed the specified limits for RDF, demonstrating the usability of waste plastic film and sewage sludge as raw materials of RDF. From an elementary analysis of waste plastic film and sewage sludge, SO2 gas is not expected to be discharged, while NOx gas may possibly be discharged in the flue. To get the heating value required for RDF, a mixture of 50% waste plastic film and 50% sewage sludge was desirable.
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