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 100g 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.
Department of Environmental Science and Engineering, National Ping-Tun University of Science and Technology, 91201 Ping-Tun, Taiwan. wjhuang@mail.npust.edu.tw
Wu-Jang
WJ
Huang
Hung-Shao
HS
Huang
D000468:Alkalies / Q000737:chemistry*; D017745:Incineration / Q000295:instrumentation; D019216:Metals, Heavy / Q000737:chemistry*; D012037:Refuse Disposal / Q000295:instrumentation; D012822:Silicon Dioxide / Q000737:chemistry*
D000468:Alkalies; D019216:Metals, Heavy; D012822:Silicon Dioxide