赤泥固化二氧化碳潜力与研究进展

赤泥是铝工业氧化铝生产过程产生的大宗固体废弃物，具有产量大、碱性强、颗粒细等特点，赤泥的综合利用依然是亟待解决的问题。二氧化碳的封存是解决碳排放问题的重要途径之一，赤泥吸收二氧化碳是缓解温室效应、降低赤泥碱性的一种可行性方法。介绍了二氧化碳矿化封存研究现状和赤泥的来源与特性，在总结赤泥吸收固化二氧化碳研究的基础上，分析了赤泥对二氧化碳的吸收能力与固化特性，对赤泥固化二氧化碳存在的问题与挑战进行了探讨，从而为赤泥的综合利用和二氧化碳固化封存研究提供指导。

Research Progress on Carbon Dioxide Sequestration Potential by Red Mud

Red mud is a massive solid waste from alumina production of aluminum industry, and it has the characteristics of massive production, strong alkalinity, fine particles, etc. Comprehensive utilization of red mud is still an urgent issue to be solved. Carbon dioxide sequestration is one of the important ways to solve the carbon emission problem. Carbon dioxide absorption by red mud is a feasible way to mitigate the greenhouse effect and reduce the alkalinity of red mud. The current status of CO2 mineralization and the properties of red mud were introduced. Based on the summary of absorption and mineralization of CO2, the absorption capacity and mineralization properties of red mud were analyzed. The problems and challenges of red mud mineralization of CO2 were discussed. It can provide guidance for the researches on comprehensive utilization of red mud and CO2 sequestration.