摘要
大宗固废是工业生产过程中产生的各种固体废弃物,大多数固废中含有较多的硅资源和各种有价资源。水化硅酸钙(C-S-H)是一种疏松多孔、表面活性强的材料,被广泛应用于水泥活化、保温材料制备和重金属吸附等方面,将大宗固废有价资源高效提取和硅资源高效利用制备C-S-H相结合,是提高固废资源化和实现C-S-H材料规模化利用的良好途径。因此,本文分析了固废基C-S-H的合成方法及其结构、性能特点,论述了C-S-H材料在建材、环境、化工、生物等领域的应用,并进一步展望了其未来的发展方向,从而为大宗固废的硅资源利用和C-S-H材料的可控制备提供参考。
Bulk solid waste is a variety of solid waste generated in the process of industrial production,and most of the solid waste contains many silica resources and a variety of valuable resources.Calcium silicate hydrates(C-S-H)is a kind of loose and porous material with strong surface activity,which is widely used in cement activation,thermal insulation material preparation and heavy metal adsorption,etc.Combining the efficient extraction of valuable resources of bulk solid waste with the efficient utilization of silicon resources to prepare C-S-H is a good way to improve solid waste resources and realize the large-scale utilization of C-S-H materials.Therefore,this paper analyzes the synthesis method,structure and performance characteristics of solid waste C-S-H,discusses the application of C-S-H materials in building materials,environment,chemical industry,biology and other fields,and further prospects its future development direction,so as to provide reference for the utilization of bulk solid waste silicon resources and the controllable preparation of C-S-H materials.
作者
朱崟源
朱干宇
齐放
李会泉
陈艳
李少鹏
郭彦霞
ZHU Yinyuan;ZHU Ganyu;QI Fang;LI Huiquan;CHEN Yan;LI Shaopeng;GUO Yanxia(Institute of Resource and Environmental Engineering,Shanxi University,Taiyuan 037008,China;CAS Key Laboratory of Green Process and Engineering,National Engineering Research Center of Green Recycling for Strategic Metal Resources,Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100190,China;School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《硅酸盐通报》
CAS
北大核心
2024年第2期517-533,共17页
Bulletin of the Chinese Ceramic Society
基金
国家重点研发计划(2021YFC1910605)。
关键词
水化硅酸钙
大宗固废
建材
填料
吸附
资源化利用
综合利用
calcium silicate hydrate
bulk solid waste
building material
filler
adsorption
resource utilization
comprehensive utilization
