抄録
Trace metal components in wastes evolve and/or concentrate in fine particulates during the combustion or incineration processes. Some of them may be emitted as a gaseous phase or fine particulates to the atmosphere. When released to the atmosphere, however, those compounds may cause adverse effects to the ecological system. In this study, the optimum sorbent to capture them during combustion is tested in burning dried sewage sludge at temperature ranging from 1073 to 1223 K, using an electrically heated drop tube furnace. Both formation behaviors of particulate mater and capture characteristics of trace elements by the optimum sorbent are discussed under practical combustion conditions. This study also conducts the leaching test of trace metals in the by-product.
