抄録
One and half year long survey was done for Sapporo RDF plant, in which RDF is produced from wood, paper, plastics commercial & industrial refuse. Physical composition of raw materials were determined for samples taken at outlets of the shredders, the storage silos and the mixingfeeder, and properties of RDF, such as calorific value, moisture and ash content, were measured. Though large fluctuations in the compositions and RDF properties were found on an hourly basis, RDF properties except bulk density, were rather stable on monthly basis. The calorific value of RDF increases as the plastics content increases, or as the incombustible content decreases. The bulk density of RDF increased as the moisture and wood content decreased. The sampling and measuring method employed inthis study can be applied to other RDF plants, and the mass flow rate in the plant was determined by least square method using the composition data and plant operation data.
