东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2010, Vol. 31 ›› Issue (4): 564-567.DOI: -

• 论著 • 上一篇    下一篇

生物氧化提金废液中铁的回收利用

李倩;田彦文;李建中;   

  1. 东北大学材料与冶金学院;
  • 收稿日期:2013-06-20 修回日期:2013-06-20 出版日期:2010-04-15 发布日期:2013-06-20
  • 通讯作者: -
  • 作者简介:-
  • 基金资助:
    国家发改办环资[2008]2183-084134866

On recovery of iron from wastewater after bio-oxidation extraction of gold

Li, Qian (1); Tian, Yan-Wen (1); Li, Jian-Zhong (1)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China
  • Received:2013-06-20 Revised:2013-06-20 Online:2010-04-15 Published:2013-06-20
  • Contact: Tian, Y.-W.
  • About author:-
  • Supported by:
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摘要： 对生物氧化提金废液进行砷、铁分离,得到铁沉淀物用于制备透明铁黄.考察了pH值、搅拌速度、反应温度、表面活性剂用量等对铁黄性能的影响.结果表明,反应温度为45℃,pH值为3.5,搅拌速度为600 r/min,表面活性剂的质量分数为3%时,制得的铁黄形貌规则,540 nm处透光率达87%,符合国际标准ISO1248—1974合格产品的要求.利用冶金废液选择性沉淀得到的铁沉淀渣制备出透明铁黄,实现了铁的资源化回收利用.

关键词: 透明铁黄, 透光率, 砷, 生物氧化废液

Abstract: The transparent iron oxide yellow was prepared by using the yellow precipitates after separating arsenic and iron from the wastewater. The effects of pH value, stirring speed, reaction temperature and dose of surfactant on the transparency of iron oxide yellow were investigated. The results showed that when the pH value is 3.5, stirring speed 600r/min, reaction temperature 25°C and dose of surfactant 3%, the transparency of regularly prepared iron oxide yellow is 87% at 540nm. As a product, the iron oxide yellow made in such a way is in accordance with ISO1248-1974, thus realizing the waste recovery of iron from acidic arsenic-containing wastewater and its applications.

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