摘要
疏浚底泥作为一种利用价值很高的固体废弃物,其陶粒化研究越来越备受关注。阐述了底泥烧胀陶粒的机理;探讨了成球方式、干燥工艺、预热参数和焙烧参数等制陶工艺与陶粒性能的关系;分析了底泥烧胀陶粒过程中重金属固化的原理;介绍了底泥烧胀陶粒在水处理滤料、建筑材料等方面的应用,表明其在工程中的应用效果显著;指出虽然现阶段相应规范的缺乏使底泥陶粒的推广受到一定的限制,但其仍具有较大的发展前景。
As a kind of solid waste with high utilization value,the research on the ceramicization of dredged sediments has attracted more and more attention.In this paper,the mechanism of preparing sintered-expanded ceramsite from dredged sediments was expounded,the relationship between pelletizing mode,drying process,preheating parameters,baking parameters and ceramsite performance was discussed,the principle of heavy metal solidification in the process of sintering-expanded ceramsite from sediments was analyzed,the application of sintered-expanded ceramsite from sediments in water treatment filter material,building material and other aspects was introduced,showing its application effect in engineering is significant.The lack of corresponding specifications at the present stage was pointed out.However,its prospect would be expected.
作者
梁标
蔡德所
莫崇勋
LIANG Biao;CAI Desuo;MO Chongxun(College of Civil and Architectural Engineering, Guangxi University, Nanning 530004, China;College of Hydraulic and Environmental Engineering, China Three Gorges University,Yichang 443002, China)
出处
《功能材料》
EI
CAS
CSCD
北大核心
2020年第11期11017-11024,11030,共9页
Journal of Functional Materials
基金
国家自然科学基金资助项目(51569006、51569003)
广西自然科学基金资助项目(2017GXNSFAA198361)。
关键词
疏浚底泥
底泥陶粒
烧胀陶粒
制陶工艺
重金属固化
陶粒应用
dredged sediments
sediment ceramsite
sintering-expanded ceramsite
ceramsite preparation
heavy metal solidification
caramsite application
