改性赤泥吸附废水中典型重金属研究进展  

Research Progress on Adsorption of Typical Heavy Metals in Waste Water by Modified Red Mud

作　　者：雷小丽 吴幼娥 曾伟 杨迪 钱文敏[1] 李彬[1] LEI Xiao-li;WU You-e;ZENG Wei;YANG Di;QIAN Wen-min;LI Bin(Faculty of Environmental Science and Engineering,Kunming University of Science and Technology,Kunming Yunnan 650500,China)

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500 [2]湖南惟创环境科技有限公司,湖南长沙410000

出　　处：《环境科学导刊》2021年第4期1-8,共8页Environmental Science Survey

基　　金：国家自然科学基金(52060010);国家重点研发计划项目(2019YFC0214404,2017YFC0210500,2017YFC0210600);云南省万人计划-青年拔尖人才(109720200046)。

摘　　要：赤泥(RM)是碱浸铝土矿提取氧化铝过程中产生的大宗工业固废,其累积量大、综合利用率低、生态风险高。水体中重金属污染是一个全球性环境问题,赤泥和重金属的环境危害均不可回避,对二者耦合治理引起学者的广泛关注。本文主要综述了改性赤泥吸附重金属的国内外新进展,通过总结评述赤泥性质和改性方法以及重金属吸附特征,分析了赤泥吸附典型重金属离子的途径和反应机理,总结了赤泥吸附重金属的影响因素及亟待解决的问题,并展望了赤泥在环境吸附材料方面规模化利用的可能性。Red mud(RM)is a large amount of industrial solid waste produced in the process of extracting alumina from bauxite by Bayer process,which has large accumulation,low comprehensive utilization rate and high ecological risk.The pollution of heavy metals in water is a global environmental problem,the environmental hazards of red mud and heavy metals can t be avoided,and the coupling treatment of the two has attracted wide attention of scholars.This paper mainly reviewed the new progress of modified red mud adsorption of heavy metals at home and abroad,through summarizing and reviewing the properties of red mud,modification methods and heavy metal adsorption characteristics,the ways and reaction mechanism of red mud adsorption of typical heavy metal ions were analyzed.The influencing factors and problems to be solved in the adsorption of heavy metals by red mud were summarized.The possibility of large-scale utilization of red mud in environmental adsorption materials was prospected.

关 键 词：赤泥 改性 重金属 吸附 

分 类 号：X13[环境科学与工程—环境科学]