소각은 유기성 유해폐기물에 대해 가장 발달된 유용한 처리기술로 인정되어 왔다. 그러나 PCBs와 같이 유해한 폐기물의 처리를 위한 소각로의 부지확보나 인허가가 유해한 대기오염 물질의 배출에 대한 주민의 우려로 용이하지 않다. 최근에 많은 소각 대체기술들이 개발되어 왔으며 이 기술들은 소각에 비해 다이옥신이나 퓨란과 같은 유해한 물질의 배출이 적어 주민의 우려를 완화시킬 수 있다. 본 논문에서는 다양한 유해폐기물의 종류에 대해 현재 적용이 가능한 소각 대체기술들을 검토하였다. 다양한 범주의 비열처리 및 열처리 소각 대체기술들을 공정운전조건, 적용대상 폐기물 및 이차폐기물 발생특성의 관점에서 평가하고 몇 가지 소각 대체기술들에 대해서는 공정의 운전원리에 대해 자세히 설명하였다.

Incineration has been regarded as the best developed technology available for organically hazardous waste. However, permitting and siting incinerators to treat hazardous waste such as a waste containing PCBs is very difficult due to the public concerns associated with toxic air emissions. Recently, a lot of alternatives to an incineration have been developed and these technologies have the potential of alleviating public concerns by decreasing emissions of hazardous materials such as dioxins and furans. This paper reviews currently available alternative incineration technologies for various hazardous waste streams. Various categories of non-thermal and thermal alternative incineration technologies have been evaluated in terms of their process operating condition, applicability of a waste stream and their emission of secondary waste. Detailed descriptions of operating principles of several technologies are also provided.

Alternative Incineration Technology Chemical Oxidation Steam Reforming Gas-phase Reduction Molten Salt Oxidation

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