抄録
Laboratory batch experiments was conducted to elucidate sorption property of trichloroethylene (TCE) in water, nonionic organic compound, by waste components of solid waste landfill site and the following conclusions were obtained, consequently. 1) Sorption isotherms of TCE by waste components can also be described by the linear equation, which has been used to describe sorption isotherms of nonionic compounds by soil and sediment. 2) Partition coefficients (Kp) of incinerator residues which included 3 kinds (ash A, B, and landfilled ash) and 15 samples (12 samples were classified by 4 steps of particle size below 4mm and 3 samples were all below 4mm) were found to be nearly proportional to organic contents (fom), i. e., Kp=130fom0.93(r=0.626, 0.062≤fom≤0.142). 3) Partition coefficients of mixed wastes can be calculated simply by the weighted summation of partition coefficient of each component. 4) Among all of investigated waste components of which organic contents were over 0.9, Kp values of plastics such as polyvinylchloride tube and polyethylene film (P. E. film) were high in comparison to papers and wood. 5) Those of ashes and source separated and size reducted refuse (S. R. R.) were also high in comparison to cover soils and sand. 6) There were no effects of tetrachloroethylene which dissolved together at the same level as sorbate and dissolved organic (as dissolved organic carbon) and inorganic (as Cl-) material within the concentration of this experiment, i.e., up to ca. 700 and 2000 mg/l individually on Kp of TCE. 7) Kp values of TCE by ashes increased somewhat by the increase of temperature within 15 to 30°C, however, those by S. R. R. and P. E. film were not changed ralatively.
