PARTITIONING COEFFICIENTS OF POLYCYCLIC AROMATIC-HYDROCARBONS IN STACK GAS FROM A MUNICIPAL INCINERATOR

In this study, solid-gas partitioning coefficients of PAHs on fly ash in stack gas from a municipal incinerator were determined according to elution analysis with gas-solid chromatography. The fly ash from the electrostatic precipitator was sieved and packed into a 1/4 inch (6.3 mm) pyrex column. Elution analysis with gas-solid chromatography was c onducted for three PAHs, Napthalene, Anthracene, and Pyrene. The tempe rature for elution analysis was in the range of 100 degrees C to 300 d egrees C. V-g, specific retention volume obtained from elution analysi s, and S, specific surface area of fly ash measured by a surface area measurement instrument, were used to estimate the solid-gas partitioni ng coefficient, K-R. In addition, the relationships between K-R and te mperature and K-R and PAH concentrations were investigated.