EMISSION OF POLYCYCLIC AROMATIC HYDROCARBONS (PAHs) AND BENZENE, TOLUENE, ETHYLBENZENE AND XYLENE (BTEX) FROM THE FURAN MOULDING SANDS WITH ADDITION OF THE RECLAIM

摘要

In this paper, the results of decomposition of a moulding sand with furfuryl resin also on a quartz matrix and with additions of a reclaimed material, under industrial conditions, are presented. Investigations of the gases emission in the test foundry plant were performed according to the original method developed in the Faculty of Foundry Engineering, AGH UST.The dependence of the emitted PAHs and BTEX group substances and ignition losses on the reclaim fraction in a moulding sand are of a linear character of a very high correlation coefficient R2. On the bases of the derived equations, it is possible to determine the amount of the emitted hazardous substances from the moulding sand containing the known fraction of the reclaim.