电厂燃煤飞灰固化脱硫污泥重金属铅特性研究

张宏伟, 张永生, 汪涛, 王家伟

Study on the Characteristics of Heavy Metal Lead in Desulfurization Sludge Solidified by Coal-Fired Fly Ash in Power Plant

Hongwei ZHANG, Yongsheng ZHANG, Tao WANG, Jiawei WANG

表3 飞灰的化学组成 (%)

Tab. 3 Chemical composition of fly ash

各成分含量 京玉飞灰 三河飞灰 京隆飞灰 徐州飞灰 w(Al 2 O 3) 36.53 19.57 37.62 14.78 w(SiO 2) 38.57 46.60 32.89 58.71 w(CaO) 7.60 11.74 8.57 2.02 w(Fe 2 O 3) 6.92 7.25 6.48 5.17 w(K 2 O) 0.60 2.62 2.44 0.53 w(MgO) 0.56 0.84 1.65 0.59 w(MnO) 0.03 0.16 0.18 0.03 w(Na 2 O) 0.44 2.27 1.26 0.55 w(P 2 O 5) 0.29 0.53 1.90 0.03 w(ZrO 2) 0.04 0.08 0.09 0.16 w(SrO) 0.06 0.72 0.30 0.06 w(TiO 2) 1.28 0.82 1.53 1.04