Journal of the Korean Industrial and Engineering Chemistry, Vol.12, No.1, 34-38, February, 2001
열플라즈마를 이용한 소각재의 유리화
Vitrification of Incineration Ash by Thermal Plasma
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초록
열플라즈마 용융 기술은 소각시 배출되는 다양한 종류의 바닥재 및 비산재를 최종 매립 전에 부피 감량 및 무해화(유해 물질의 제거) 처리할 수 있는 기술적인 방법으로 대두되고 있다. 본 연구는 6∼9 kW 출력의 비이송식 DC 플라즈마 토치를 이용하여 수행되어졌다. 열 플라즈마에 의해 유리화된 글래그는 중금속에 대해 무해함을 알 수 있으며 무해화에 대한 분석은 ICP를 이용하고 소각재와 슬래그에 대한 성분 분석은 EPMA를 이용하였다. 생성된 슬래그는 건축자재인 조결제나 노반재 등으로 사용되어질 수 있는 충분한 경도를 보여주었다.
Thermal plasma melting technology may be a possible method for treating various kinds of bottom and fly ashes, from incinerators, through volume reduction and detoxification (removal of hazardous elements) before their final disposal. The present research was conducted using a direct current non-transferred type plasma generator that has an output range of 6-9 kW. The glassified slag, produced by thermal plasma, was non-hazardous and no contamination of heavy metals. The detoxification characteristics were analyzed by ICP, and the composition of the ash and slag were analyzed by an EPMA. This slag was found to exhibit sufficient strength to be used as construction materials such as interlocking blocks or road-bed materials.
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