화학공학소재연구정보센터
Journal of Hazardous Materials, Vol.152, No.1, 176-182, 2008
Using fume silica as heavy metals' stabilizer for high alkali and porous MSWI baghouse ash
In this study, we have proved that heavy metals in high porous and alkali baghouse ash could be fixed effectively by fume silica powder alone, or with the incorporation of colloidal aluminum oxide (CAO). The optimum amount is about 100 g of fume silica per kilogram of baghouse ash. Results have indicated that fume silica has a better fixation efficiency of lead in high porous baghouse ash. In addition, the reaction mechanism of fume silica is also discussed. (C) 2007 Elsevier B.V. All rights reserved.