摘要
赤泥是氧化铝生产过程中产生的强碱性工业固废,其长期堆存不仅占用大量土地,还会造成土壤破坏、水质降低、空气污染等环境安全隐患,赤泥规模化消纳成为急需解决的问题。本文介绍了赤泥的物化性质,总结分析了赤泥在有价金属提取、建筑材料、环境治理材料、土壤化原位修复等方面的资源化利用。重点内容包括:赤泥中铁、铝及稀有金属的回收技术;赤泥在水泥、砖制品、微晶玻璃、陶瓷、新型功能材料、路基材料及矿山充填材料等建筑领域的应用;赤泥在废水处理、废气净化、污染土壤修复、化肥载体等环境治理方面的潜力以及赤泥堆场土壤改良的技术路径。最后,对赤泥资源化利用的未来发展趋势进行了展望。
Red mud is a strong alkaline industrial solid waste produced in the process of alumina production.Its long-term storage not only occupies a large amount of land,but also causes soil damage,water quality reduction,air pollution and other environmental safety hazards.Large-scale consumption of red mud has become an urgent problem to be solved.This paper introduced the physical and chemical properties of red mud,and summarized and analyzed the resource utilization of red mud in valuable metal extraction,building materials,environmental management materials,and soil in-situ remediation.The key contents included:the recovery technology of iron,aluminum and rare metals in red mud;the application of red mud in the construction field of cement,brick products,glass-ceramics,ceramics,new functional materials,roadbed materials and mine filling materials;the potential of red mud in environmental treatment such as wastewater treatment,waste gas purification,contaminated soil remediation,fertilizer carrier and the technical path of soil improvement in red mud yard.Finally,the future development trend of red mud resource utilization was prospected.
作者
王壮
房辉
郭丰佳
WANG Zhuang;FANG Hui;GUO Fengjia(National Aluminum Alloy Pressure Processing Engineering Technology Research Center,Shandong Nanshan Aluminum Co.,Ltd.,Longkou 265713,China;Nonferrous Metals Industry Research Institute,Shandong Nanshan Aluminum Co.,Ltd.,Longkou 265713,China;School of Metallurgy and Environment,Central South University,Changsha 410083,China;Longkou Donghai Alumina Co.,Ltd.,Longkou 265713,China)
出处
《绿色矿冶》
2025年第6期13-22,共10页
Sustainable Mining and Metallurgy
基金
中国工程科技发展战略山东研究院项目(202301SDZD03)。
关键词
赤泥
有价金属提取
建筑材料
环境治理
土壤化原位修复
综合利用
red mud
valuable metal extraction
building material
environmental governance
soilification in situ remediation
comprehensive utilization
