中文摘要：

市政污泥热解可实现无害化与能源转化,而了解重金属在热解残渣中的形态分布显得尤为重要。该文以原泥（RS）、复合调理剂深度脱水泥饼（FS）为研究对象分别进行了不同温度（500、600、700、800和900℃）的热解实验,分析了污泥、热解残渣样品中Cu、Zn、Cr、Pb、Cd 5种重金属元素含量,并采用Tessier形态逐级提取法进一步研究了污泥、热解残渣样品中重金属形态分布规律。结果表明：污泥热解后,重金属在热解残渣中有不同程度的富集,原泥直接热解后Cu和Zn富集效果更明显,而FS中Cr、Pb和Cd富集作用更显著。热解残渣样品中各重金属元素（Cu、Zn、Cr、Pb、Cd）均比其在原泥中以更加稳定的形态存在。

英文摘要：

The harmless treatment and energy conversion of the sewage sludge can be implemented by pyrolysis,and the understanding of speciation distribution of the heavy metals in pyrolysis residue is particularly important. The pyrolysis experiments were conducted at different temperatures （500, 600, 700, 800 and 900 ℃）, and the contents of heavy metals in raw sludge（RS）and dewatered sludge cake（FS） were studied. The concentrations of Cu, Zn, Cr, Pb and Cd in the pyrolysis residue were determined and the speciation of heavy metals was analyzed following Tessier sequential extraction procedure. An enrichment effect of heavy metals was found during the pyrolysis process. An enrichment of Cu and Zn in the pyrolysis residue was found for the raw sludge and an enrichment of Cr, Pb and Cd was found for the FS. From the chemical state analysis of the pyrolysis residue, most of the heavy metals （Cu, Zn, Cr, Pb, Cd） were presented in a more chemical stable form than those from raw sludge.