高级搜索

液体高铁酸钠同时去除电镀废水中氰化物和重金属

,  ,  ,  , 

downloadPDF

上一篇

下一篇

朱铭桥, 黄华山, 苑宝玲, 周真明, 刘淑坡. 液体高铁酸钠同时去除电镀废水中氰化物和重金属[J]. 环境工程学报, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
引用本文: 朱铭桥, 黄华山, 苑宝玲, 周真明, 刘淑坡. 液体高铁酸钠同时去除电镀废水中氰化物和重金属[J]. 环境工程学报, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
shu
ZHU Mingqiao, HUANG Huashan, YUAN Baoling, ZHOU Zhenming, LIU Shupo. Removal of cyanide and heavy metals in electroplating wastewater by sodium ferrate[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
Citation: ZHU Mingqiao, HUANG Huashan, YUAN Baoling, ZHOU Zhenming, LIU Shupo. Removal of cyanide and heavy metals in electroplating wastewater by sodium ferrate[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
shu

液体高铁酸钠同时去除电镀废水中氰化物和重金属

  • 1.

    华侨大学土木工程学院市政与环境工程研究所, 厦门 361021

  • 基金项目:

    福建省国际合作项目（2014I0013）

    泉州市科技计划重点项目（2014Z128）

  • 中图分类号: X703

Removal of cyanide and heavy metals in electroplating wastewater by sodium ferrate

  • 1.

    Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen 361021, China

  • Fund Project:

  • 摘要: 采用自制的电化学装置在线制备液体高铁酸钠，然后将制得的高铁酸钠投加到电镀废水中进行处理，考察不同pH值和不同高铁酸钠投加量对废水中总氰化物、Cu2+、Ni2+去除率的影响；对比研究了高铁酸钠氧化法和次氯酸钠氧化法在处理低浓度含氰电镀废水的效果。结果表明，当pH为9~10，高铁酸钠的最佳投加量为0.024~0.048 mmol·L-1时，总氰化物、Cu2+和Ni2+的同时去除率均在90%以上；在处理低浓度含氰电镀废水时，高铁酸钠对总氰化物、Cu2+和Ni2+的同时去除率均明显高于次氯酸钠。这是因为高铁酸钠能够有效地氧化多种络合态的氰化物，包括Cu（CN）43-、Cu（CN）42-、Ni（CN）42-等，使废水中的重金属转变为离子态；然后在碱性条件下，在高铁酸盐还原产物-Fe（OH）3助凝和絮凝作用下，反应生成沉淀，达到同时去除氰化物和重金属的目的。
    Abstract: Sodium ferrate was prepared using a self-made electrochemical device and the effects of the pH and ferrate dosage used in the preparation on the cyanide,Cu2+,and Ni2+ removal rates from electroplating wastewater by the prepared ferrate were investigated. The experimental results showed the removal rates of cyanide,Cu2+ and Ni2+ could reach above 90% when pH was from 9.0 to 10.0 and the optimal dose of ferrate was in the range from 0.024 to 0.048 mmol·L-1. The removal efficiencies achieved by ferrate or sodium hypochlorite oxidation for electroplating wastewater with low cyanide concentrations were evaluated. Sodium ferrate was found to be more efficient than sodium hypochlorite for cyanide,Cu2+,and Ni2+ removal. Cu2+ and Ni2+ could be released by the oxidation of the cyanide complex with sodium ferrate. The released metal ions and cyanide were then coagulated and settled by the reductive product of ferrate,Fe(OH)3.
  • 加载中
  • [1] 曾武. 电镀废水处理技术的研究和发展[J]. 广东化工, 2011, 38(4):173-174
    [2] ZAGURY G J, OUDJEHANI K, DESCHNES L. Characterization and availability of cyanide in solid mine tailings from gold extraction plants[J]. Science of the Total Environment, 2004, 320(2/3):211-224
    [3] 李雪萍, 钟宏, 周立. 含氰废水处理技术研究进展[J]. 化学工业与工程技术, 2012, 33(2):17-22
    [4] AKCIL A. Destruction of cyanide in gold mill effluents:Biological versus chemical treatments[J]. Biotechnology Advances, 2003, 21(6):501-511
    [5] GUROL M D, HOLDEN T E. The effect of copper and iron complexation on removal of cyanide by ozone[J]. Industrial & Engineering Chemistry Research, 1988, 27(7):1157-1162
    [6] SHARMA V K, YNGARD R A, CABELLI D E, et al. Ferrate(Ⅵ)and ferrate(Ⅴ)oxidation of cyanide, thiocyanate, and copper(Ⅰ)cyanide[J]. Radiation Physics and Chemistry, 2008, 77(6):761-767
    [7] 郭崇武, 李健强. 镀镍废水中氰化物的处理方法[J]. 电镀与精饰, 2007, 29(1):42-44
    [8] JIANG Jiaqian. Advances in the development and application of ferrate(Ⅵ)for water and wastewater treatment[J]. Journal of Chemical Technology and Biotechnology, 2014, 89(2):165-177
    [9] 苑宝玲, 蓝华春, 杨业臻, 等. 电化学在线制备高铁氧化脱色偶氮染料酸性红B的研究[J]. 环境化学, 2005, 24(3):322-325
    [10] 李坤林, 苑宝玲, 叶谋仁. 高铁酸盐溶液的制备与去除氨氮的实验研究[J]. 安全与环境工程, 2006, 13(3):55-58
    [11] 贾汉东, 杨新玲, 杨勇, 等. 高铁酸盐的直接分光光度法测定[J]. 分析化学, 1999, 27(5):617
    [12] SHARMA V K, BURNETT C R, MILLERO F J. Dissociation constants of the monoprotic ferrate(Ⅵ)ion in NaCl media[J]. Physical Chemistry Chemical Physics, 2001, 3(11):2059-2062
    [13] SHARMA V K, RIVERA W, SMITH J O, et al. Ferrate(Ⅵ) oxidation of aqueous cyanide[J]. Environmental Science & Technology, 1998, 32(17):2608-2613
    [14] OSATHAPHAN K, KITTISARN W, CHATCHAITANAWAT P, et al. Oxidation of Ni(Ⅱ)-cyano and Co(Ⅲ)-cyano complexes by ferrate(Ⅵ):Effect of pH[J]. Journal of Environmental Science and Health, Part A:Toxic/Hazardous Substances and Environmental Engineering, 2014, 49(12):1380-1384
    [15] 裔兆军, 严金龙, 丁成. 电镀污泥焚烧残渣中的Cu、Ni形态分析[J]. 环境工程, 2012, 30(4):80-82
    [16] SHARMA V K, BURNETT C R, YNGARD R A, et al. Iron(Ⅵ) and iron(Ⅴ) oxidation of copper(i)cyanide[J]. Environmental Science & Technology, 2005, 39(10):3849-3854
    [17] YNGARD R A, SHARMA V K, FILIP J, et al. Ferrate(Ⅵ) oxidation of weak-acid dissociable cyanides[J]. Environmental Science & Technology, 2008, 42(8):3005-3010
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  2139
  • HTML全文浏览数:  1728
  • PDF下载数:  370
  • 施引文献:  0
出版历程
  • 收稿日期:  2016-02-24
  • 刊出日期:  2017-03-10
朱铭桥, 黄华山, 苑宝玲, 周真明, 刘淑坡. 液体高铁酸钠同时去除电镀废水中氰化物和重金属[J]. 环境工程学报, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
引用本文: 朱铭桥, 黄华山, 苑宝玲, 周真明, 刘淑坡. 液体高铁酸钠同时去除电镀废水中氰化物和重金属[J]. 环境工程学报, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
shu
ZHU Mingqiao, HUANG Huashan, YUAN Baoling, ZHOU Zhenming, LIU Shupo. Removal of cyanide and heavy metals in electroplating wastewater by sodium ferrate[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
Citation: ZHU Mingqiao, HUANG Huashan, YUAN Baoling, ZHOU Zhenming, LIU Shupo. Removal of cyanide and heavy metals in electroplating wastewater by sodium ferrate[J]. Chinese Journal of Environmental Engineering, 2017, 11(3): 1540-1544. doi: 10.12030/j.cjee.201512004
shu

液体高铁酸钠同时去除电镀废水中氰化物和重金属

  • 1. 华侨大学土木工程学院市政与环境工程研究所, 厦门 361021
  • 收稿日期:  2016-02-24
基金项目:

福建省国际合作项目（2014I0013）

泉州市科技计划重点项目（2014Z128）

摘要: 采用自制的电化学装置在线制备液体高铁酸钠，然后将制得的高铁酸钠投加到电镀废水中进行处理，考察不同pH值和不同高铁酸钠投加量对废水中总氰化物、Cu2+、Ni2+去除率的影响；对比研究了高铁酸钠氧化法和次氯酸钠氧化法在处理低浓度含氰电镀废水的效果。结果表明，当pH为9~10，高铁酸钠的最佳投加量为0.024~0.048 mmol·L-1时，总氰化物、Cu2+和Ni2+的同时去除率均在90%以上；在处理低浓度含氰电镀废水时，高铁酸钠对总氰化物、Cu2+和Ni2+的同时去除率均明显高于次氯酸钠。这是因为高铁酸钠能够有效地氧化多种络合态的氰化物，包括Cu（CN）43-、Cu（CN）42-、Ni（CN）42-等，使废水中的重金属转变为离子态；然后在碱性条件下，在高铁酸盐还原产物-Fe（OH）3助凝和絮凝作用下，反应生成沉淀，达到同时去除氰化物和重金属的目的。

English Abstract

    全文HTML

参考文献 (17)

返回顶部

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心