Study on properties of steel slag-blast furnace slag-zeolite binder for solidification/stabilization of heavy metals

3rd International Conference on Energy Engineering and Environmental Protection

能源学;生态环境科学

Tian, Xiaohua^1 ; Li, Chao^1 ; Zhao, Fengqing^1 ; Liu, Zhenqi^2

Department of Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang

050018, China^1

Zunhua Zhonghuan Solid Waste Utilization Co. Ltd, Tangshan

064200, China^2

关键词: Calcium aluminate;    Ettringites;    Hydrated calcium silicates;    Solidification/stabilization;    Steel slag;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/227/5/052070/pdf
DOI  :  10.1088/1755-1315/227/5/052070

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Steel slag-blast furnace slag-zeolite (SBZ) binder is a low-clinker cement, which can be used for solidification/stabilization of heavy metals. The solidification efficiency of SBZ binder for heavy metal is proved higher than that of OPC cement in most cases but the cost is lower. The solidification/stabilization mechanism of SBZ binder was discussed. Hydrated calcium silicate, hydrated calcium aluminate, ettringite, and zeolite in the system have important contributions to solidification/stabilization of heavy metals.