抄録
The number of scrapped cars amounts to about 5 million a year in Japan and the increase in shredded automobile residues from scrapped car processing causes social problems such as the shortage of disposal places and soil pollution. The research on the characterization of shredded automobile residues was performed to overcome these problems. It was found that lead in the residues but existed as fine particles and adhered to cotton and sponge. The stabilization of the lead after mixing with additives was investigated by lead contamination analysis. The additives used was cement, sodium carbonate and K-20. It is worth noticing that the addition of 5 weight percentage of cement powder without water followed by 3 minutes stirring and 4 hour aging is effective to suppress lead inclusions.
