물리화학적 분석을 통한 폐고무의 재활용 품질특성 평가

초록

This research was performed to evaluate the recycling characteristics by physico-chemical analysis of the wasted and the reclaimed rubbers. Two types of the powdered and the reclaimed rubbers were sampled and analyzed. Pb was detected in the range of 2.55 ~ 194.00 mg/kg for the powdered rubber product, of which some exceeded the rubber standard criteria (90 mg/kg), while it was 0.05 ~ 50.80 mg/kg for the reclaimed rubber. Zn showed the highest concentration of heavy metals in the rubber products, comparing to the other heavy metals. It ranged from 9,750 mg/kg to 27,900 mg/kg, and 388 mg/kg to 17,450 mg/kg for the powdered and the reclaimed rubber products, respectively. Total PAHs concentrations of the powdered and the reclaimed rubber products exceeded greatly the rubber standard criteria (10 mg/kg) as 221.7 ~ 18,842.8 mg/kg and not-detected ~ 14,248.0 mg/kg, respectively. Therefore, it was concluded that the management plan and environmental criteria should be prepared for the recycled rubber product, considering the concentrations of hazardous compounds such as Pb, Zn, and PAHs.

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