本研究主要係將焚化灰渣及廢水污泥，以高溫熱熔法進行實驗，以模擬電漿熔融系統之部分操作條件，了解重金屬元素於高溫熱熔程序中之宿命。再者，添加不同比例廢玻璃作為添加劑，與灰渣及污泥調質後，進行實驗室熱熔試驗，探討不同添加物比例對熱熔處理效果之影響。研究結果顯示，實廠電漿熔融系統與實驗室熱熔試驗模擬結果類似，出料物質中大多數金屬元素，如：Ag(67.9%)、As(83.3%)、Ca(77.4%)、Cr(63.6%)、Mg(50.8%)、Mn(78.0%)、Mo(80.5%)及Na(53.3%)等存在於熔渣中，主要存在於金屬錠者，為Cu(75.3%)與Ni(61.3%)，而揮發至煙道廢氣中者，以粒狀物相存在之金屬元素主要為Cd (97.0%)、Hg(40.0%)、K(92.9%)及Se(54.2%)，而金屬元素主要存在於氣相者為Pb(81.6%)。由此可見主要控制金屬元素宿命之因子，為金屬元素之比重與沸點。分離效率試驗結果顯示，當熱熔試驗進料中，廢玻璃之比例為30% (T30)時，Co、Cr、Fe及Ni等金屬元素於金屬錠中有最高之回收分離效率，然而，Cu於T70及Mn於T60有最高之回收分離效率。當廢玻璃添加量過多，將形成立體狀之玻璃網絡，增加熔渣黏滯性，妨礙比重大之金屬元素下沉，因此，部分金屬元素於金屬錠中之回收分離效率因而降低。以高溫熱熔法處理焚化灰渣及廢水污泥，可達到廢棄物減量化、穩定化及資源化之目的。

This study focus on the vitrification of waste incineration ashes and wastewater sludge in the operational conditions of plasma system, and aims to understand the fate of heavy metals in vitrification processes. Furthermore, different addition fraction of cullet in ashes and sludge is used to investigate the effect of vitrification treatment when adding various addition ratios. The results showed that the vitrification behaviors of plasma system is similar to that in-laboratory by using high temperature electrode furnance. The majority of elements were existed in slag of out-put materials such as Ag(67.9%)、As(83.3%)、Ca(77.4%)、Cr(63.6%)、Mg(50.8%)、Mn(78.0%)、Mo(80.5%) and Na(53.3%). However, both Cu (75.3%) and Ni (61.3%) were mainly in the ingot; Cd (97.0%), Hg(40.0%), K(92.9%) and Se(54.2%) were primarily in the particulate of stack gas and Pb(81.6%) were mostly associated with gas phase. This result shows the dominant factors for controlling the fate of metal elements are their specific weight and boiling point. Separation-efficiency tests showed that Co, Cr, Fe, and Ni are with the best separation rate when cullet addition fraction is 30% (T30); however, that of Cu is T70 and Mn is T60. This result shows that adding too much cullet forms stereo glassy-network, increasing viscosity of slag which obstructs setlling properties and decrease separation efficiency of metal elements in ingot. Vitrifaction of both incineration ashes and wastewater sludge can achieve the goals of waste volume reduction, stabilization and recycling.

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