Abstract:Substance flow analysis was adopted to study the migration behavior and quantitative potential environmental impact of heavy metal elements in multi-resource utilization of high alumina fly ash process. The input, output, and internal migration of heavy metals in this process are obtained. The result showed that 54% of lead was from fly ash, and the other was from industrial raw materials. 64% of lead was brought out through products,and the other through wastes. The environmental emission of this process were from sintering and cement production. The Relative Environment Emission Index (REEI) was defined to compare this process with the Bayer process. The result showed that the lead emission of this process was significantly less than Bayer process and the chromium emission of this process was fair with Bayer process. It meaned that this process could not only utilize the resource of high-alumina fly ash but also significantly reduce the environmental impact of heavy metals in alumina product.
韩永鹏, 李会泉, 陈波, 李强, 贾小平, 张靖峰, 张懿. 高铝粉煤灰资源化过程重金属环境影响研究[J]. 中国环境科学, 2013, 33(11): 2013-2017.
HAN Yong-Peng, LI Hui-Quan, CHEN Bo, LI Qiang, JIA Xiao-Ping, ZHANG Jing-Feng, ZHANG Yi. Migration and emission of heavy metal elements in the multi-resource utilization of high alumina fly ash process. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(11): 2013-2017.