赤泥在废水处理中的应用与研究现状

Application and Research Status of Red Mud in Wastewater Treatment

赤泥是氧化铝生产中排放的固体废渣,储量大,成分复杂,具有高碱性和放射性,极易引起一系列的环境污染。本文详细介绍了赤泥作为吸附剂,在去除废水中的重金属离子、非金属离子和有机污染物,以及制备絮凝剂等方面的研究和应用。研究结果表明,赤泥用于废水处理,既廉价环保又能以废制废,减小了因赤泥的后继处理给企业带来的经济负担,为赤泥的资源化利用指出了一个重要方向。

Red mud was the solid waste discharged during the production of alumina.It had large reserves,complex components,high alkalinity and radioactivity,which could easily cause a series of environmental pollution.In this paper,the application and research of red mud as adsorbent in the removal of heavy metal ions,non-metal ions,organic pollutants and flocculent preparation in wastewater were introduced in detail.The results showed that red mud could be used for wastewater treatment,which was cheap and environmentally friendly,and could be used for waste disposal,which reduced the economic burden brought by red mud subsequent treatment to enterprises,and pointed out an important direction for the resource utilization of red mud.