添加剂对污泥焚烧过程中重金属迁移特性的影响

利用管式炉研究了Cl、S、P对重金属迁移特性的影响，研究结果表明：C促进了重金属Cd、Pb、Zn、Cu的挥发，而对重金属Ni、Cr的挥发特性影响不大；S对重金属的挥发特性影响不大，在一定程度上抑制霞金属Zn、Cd、Ni的挥发，而对重金属Pb则促进其挥发；P对不同重金属的挥发特性影响不同，随着P含量的增加，重金属Cr和Ni的挥发的挥发率逐渐增大，而重金属Cd、Pb和Zn的挥发率逐渐降低。

Effect of Additives on Distribution of Heavy Metals in the Incineration of Sludge

The effects of chlorine,sulfur and phosphorus on the transformation of heavy metals were studied on the tube furnace.The results of experiment showed that Chlorine accelerated Cd,Pb,Zn and Cu transfer from solid phase to gas phase and had less influence on Ni and Cr.Sulfur had less influence on the transfer characteristics of heavy metals,and inhibited Zn,Cd,Ni transfer from solid phase to gas phase while presented opposite trend on Pb in a certain extent.Phosphorus had different influences on the transfer characteristics of heavy metals.With the increasing contents of phosphorus,Cr and Ni volatilization rates increased while Cd,Pb and Zn volatilization rates decreased gradually.