以垃圾焚化飛灰添加水庫淤泥燒製輕質骨材之研究

Product of Lightweight Aggregates from Mixture of Municipal Solid Waste Incineration Ashes and Reservoir Sludge

本研究主要以都市垃圾焚化飛灰混合水庫淤泥進行輕質骨材燒製研究。方法上，結合焚化飛灰燒結及熔融兩固化之機制，並配合水庫淤泥輕質骨材的製作技術，藉以分解與安定焚化飛灰之毒物，並達到廢棄物再利用之目的。根據試驗結果得知，垃圾焚化飛灰無法單獨燒製輕質骨材。若將其作為添加劑混合於水庫淤泥，可成功造粒並燒製出性質良好之輕質骨材。本試驗製得之骨材皆滿足環保署規定「事業廢棄物毒性特性溶出程序」的標準，可安全無虞地使用於土木建築等工程。

This paper aims to investigate on producing lightweight aggregates by incorporating municipal solid waste (MSW) incineration ashes with reservoir sludge. It was utilizing the mechanism of high temperature solid solution method to conduct an investigation on the development of lightweight aggregate using MSW incineration fly ashes and reaction ashes. The investigation shows that the MSW incineration fly ashes and reaction ashes are not in the limits of the expandable region of the ternary diagram. Therefore, they can only be used as additives. The lightweight aggregates generated by this study meet the toxic requirements of Taiwan Environmental Regulatory, which demonstrate that the aggregates thus fabricated are non-hazardous for construction use.