给水厂污泥对重金属竞争吸附探究
仇付国,王肖倩,童诗雨,吕华东

Explore the competitive adsorption of heavy metals by water treatment residual
Fuguo QIU,Xiaoqian WANG,Shiyu TONG,Huadong LÜ
表2 不同体系中重金属离子的分配系数
Table 2 Distribution coefficients of heavy metal ions in different systems
体系Kd100 /(L·g-1
Pb(Ⅱ)Cr(Ⅵ)Hg(Ⅱ)Cd(Ⅱ)
单一1.340.180.530.21
二元Pb(Ⅱ)-Hg(Ⅱ)0.850.23
Cr(Ⅵ)-Hg(Ⅱ)0.150.56
Pb(Ⅱ)-Cd(Ⅱ)0.870.16
三元Pb(Ⅱ)-Hg(Ⅱ)-Cd(Ⅱ)0.520.210.05
Cr(Ⅵ)-Hg(Ⅱ)-Cd(Ⅱ)0.170.510.15