过氧化氢加Fe(Ⅱ)作催化剂处理电镀废液中Cr（Ⅵ）

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过氧化氢加Fe(Ⅱ)作催化剂处理电镀废液中Cr（Ⅵ）

刘淼, 董德明, 邱立民, 方国利, 鲁垠涛, 张菁菁, 吴迪

吉林大学环境与资源学院，长春 130023

收稿日期:2003-03-15 修回日期:1900-01-01 出版日期:2003-07-26 发布日期:2003-07-26
通讯作者: 刘淼

Treatment of Chromium Remained in Electroplate Wastewater by Mixture of H_{2< /sub>O₂ and Fe(Ⅱ)}

LIU Miao, DONG De-ming, QIU Li-min, FANG Guo-li, LU Yin-tao， ZHANG Jing-jing, W U Di

College of Environment and Resources, Jilin University, Changchun 130023, China

Received:2003-03-15 Revised:1900-01-01 Online:2003-07-26 Published:2003-07-26
Contact: LIU Miao

摘要/Abstract

摘要： 以微量Fe(Ⅱ)作催化剂，利用还原剂过氧化氢在酸性条件下催化处理电镀含Cr（Ⅵ）废水，使Cr（Ⅵ）转变为Cr（Ⅲ），再将Cr(OH)₃沉淀使铬从原废水体系中分离. 还原剂分解后的产物对环境无二次污染；经30 min处理后， Cr（Ⅵ）含量由初始值200 mg/L降至0.2 mg/L以下，去除率达99.9%以上.

关键词: Fe(Ⅱ)催化还原, 六价铬, 电镀废液

Abstract: Plate wastewater containing Cr(Ⅵ) was treated quickly with hydrogen peroxide, in which micro amounts of Fe(Ⅱ) are applied as the catalyst under acid condition. This reaction makes Cr(Ⅵ) reduced into Cr(Ⅲ), and then the Cr(OH)₃ precipitate is seperated from the wastewater. Not a ny second polution matter is produced to the enviroment. 30 min later, the conte nt of Cr(Ⅵ) changed from 200 mg/L to below 0.2 mg/L. The removing rate may achieve above 99.9%.

Key words: Fe(Ⅱ) catalytic reduce, Cr(Ⅵ), plate wastewater

中图分类号:

O643.31

刘淼, 董德明, 邱立民, 方国利, 鲁垠涛, 张菁菁, 吴迪. 过氧化氢加Fe(Ⅱ)作催化剂处理电镀废液中Cr（Ⅵ）[J]. J4, 2003, 41(03): 406-409.

LIU Miao, DONG De-ming, QIU Li-min, FANG Guo-li, LU Yin-tao， ZHANG Jing-jing, W U Di. Treatment of Chromium Remained in Electroplate Wastewater by Mixture of H_{2< /sub>O₂ and Fe(Ⅱ)[J]. J4, 2003, 41(03): 406-409.}