摘要
含砷高铁废水为冶炼工业中硫酸化焙烧-水浸后产生的废水,其主要特点是酸性强,含有大量的Fe^(2+)、SO_4^(2-),同时含有少量的As^(3+)、Cu^(2+)、Zn^(2+)、Cd^(2+),系统介绍了处理含砷高铁废水的技术方法、工艺流程及最新研究进展。目前含砷重金属废水的处理方法有中和沉淀法、硫化物沉淀法、离子交换法、铁粉还原法及生物絮凝法等。论文详细比较了这些方法的工艺路线及存在的优缺点,并展望了利用高铁废水制备无机高分子絮凝剂、磁性纳米材料、铁系颜料等产品具有良好的工业应用前景。
High iron arsenic wastewater is produced by sulfated roasting-water leaching in the smelting industry.The wastewater is highly acidic and contains massive Fe2+and SO42-as well as a spot of As3+,Cu2+,Zn2+and Cd2+ions.This article systematically introduces the technical methods,process flow and the latest research progress of the treatment for the high iron arsenic wastewater.At present,the treatment methods mainly include neutralization precipitation,sulfide precipitation,ion exchange,iron powder reduction and biological flocculation.The process route as well as the advantages and disadvantages of these methods are compared in detail.Moreover,the industrial applications of the wastewater in the preparation of inorganic polymer flocculants,magnetic nano-materials,iron oxide pigments and other products are introduced.
作者
左豪恩
温建康
崔兴兰
武彪
李旭
任传裕
ZUO Haoen;WEN Jiankang;CUI Xinglan;WU Biao;LI Xu;REN Chuanyu(National Engineering Laboratory of Biohydrometallury,General Research Insitute for Nonferrous Metals,Beijing 10088,China)
出处
《矿产保护与利用》
2018年第1期129-132,共4页
Conservation and Utilization of Mineral Resources
基金
国家科技支撑计划课题(2015BAB12B03)
关键词
高铁废水
处理方法
无机高分子絮凝剂
纳米材料
铁系颜料
high iron wastewater
treatment method
inorganic polymer flocculant
nano-material
iron oxide pigment
