Effect of crystallization time on behaviors of glass-ceramic produced from sludge incineration ash

摘要：

　　Incineration has become a significant treatment method for municipal sewage sludge because of the rising difficulty to find suitable sites for traditional landfill.However,a large amount of sludge incineration ash containing high levels of heavy metals is remained.In order to achieve resource utilization,glass-ceramics have been produced using sludge incineration ash.The optimum heat treatment was identified as Tn =837℃ for 1.0 h and Tc =977℃ for 2.0 h,respectively.The major crystalline phase identified from X-ray diffraction (XRD) and scanning electron microscopy (SEM) was wollastonite (CaSiO3) and the products displayed good performances.The results indicated that it was a feasible attempt to produce glass-ceramics from sludge incineration ash as decorative materials.

关键词： Heavy metal Glass-ceramic Sludge incineration ash

作者: Zhikun Zhang Aimin Li Yulei Yin Long Zhao

作者单位: Key Laboratory of Industrial Ecology and Environmental Engineering(MOE), School of Environmental Science & Technology, Dalian University of Technology, Dalian 116024, China

会议类型: 国际会议

会议名称: 2013 International Symposium on Environmental Science and Technology(2013环境科学与技术国际会议)

会议地点: 大连

会议语种:英文

页码: 633-636

在线出版日期: 2013-06-04（万方平台首次上网日期，不代表论文的发表时间）