赤泥资源化应用综述  

Review of the Application of Resource Utilization of Red Mud

作　　者：刘畅 饶军应 梅世龙 崔红超 LIU Chang;RAO Junying;MEI Shilong;CUI Hongchao(School of Civil Engineering,Guizhou University,Guiyang 550025;Space Structure Research Center,Guizhou University,Guiyang 550025;School of Architecture and Urban Planning,Guizhou University,Guiyang 550025)

机构地区：[1]贵州大学土木工程学院,贵阳550025 [2]贵州大学空间结构研究中心,贵阳550025 [3]贵州大学建筑与城市规划学院,贵阳550025

出　　处：《土工基础》2025年第1期118-121,共4页Soil Engineering and Foundation

摘　　要：赤泥是一种易引起环境和社会问题的工业固废,其资源化的方法还有待探索。综述了国内外关于赤泥资源化利用的研究成果:(1)在赤泥中回收有价金属,如钪、钛、铝等,回收方法包括直接物理分选法、还原磁选法等;(2)使用赤泥制备建筑材料,如道路基层材料、水泥和沥青等;(3)将赤泥用于环境保护,如吸收废水中的重金属离子、放射性物质,处理大气中的SO_(2)、CO_(2)和硫酸雾等废气,吸附土壤中的重金属离子。对赤泥的各种回收利用技术进行了特点分析,指出了存在的问题,并提出了相应建议,明确了对赤泥资源化利用的未来方向,应以赤泥的减量化、无害化、产业化利用为目标进行科学研究。Red mud is one of the typical industrial solid wastes,and due to its high alkalinity and potential environmental and social issues during storage or landfill,the industry urgently needs to explore the path of resource utilization of red mud.This article summarizes the research results on the resource utilization of red mud both domestically and internationally:(1)recove-ring valuable metals such as scandium,titanium,aluminum,etc.from red mud,using methods such as direct physical separa-tion and reduced magnetic separation;(2)Using red mud to prepare building materials,such as road base materials,cement,and asphalt;(3)Using red mud for environmental protection,such as absorbing heavy metal ions and radioactive substances from wastewater,treating waste gases such as SO_(2),CO_(2),and sulfuric acid mist in the atmosphere,and adsorbing heavy metal ions from soil.Summarized and analyzed the characteristics of different recycling and utilization technologies for red mud,pointed out some of the problems,and put forward some suggestions.The future direction of resource utilization of red mud has been clarified,and scientific research should be carried out with the goal of reducing,harmless,and industrialized utiliza-tion of red mud.

关 键 词：赤泥 综合利用 金属回收 建筑材料 环境保护 

分 类 号：TU472[建筑科学—结构工程]