Treatment Cyanide-extracting Gold Wastewater by Adsorption and Electric Adsorption
Release time:2024-08-09
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- Affiliation of Author(s):
- 化学与化工学院
- Journal:
- 4th INTERNATIONAL CONFERENCE on ENERGY and ENVIRONMENTAL PROTECTION
- Key Words:
- 中文关键字：重金属；氰化物；金矿废水；电吸附，英文关键字：Heavy metals； Cyanide； Gold mine wastewater； Elect
- Abstract:
- New coal-based electrode material made of low rank pulverized coal and direct coal liquefaction residue was used in electric adsorption treating heavy metals and cyanide containing gold mine wastewater. The effects of the adsorption voltage and time for the ion adsorption rates were mainly by studied. The electrodes and precipitate generated after the adsorption process were characterized by Scanning Electron Microscope & Energy Spectrum (SEM-EDS) and X-Ray Diffraction (XRD). The results showed that with the applied voltage 2.0V, plate spacing 1cm and adsorption time 5h, the removal rates of cupric ion, total cyanide, zinc ion and thiocyanate ion were 90.63%, 71.49%, 28.65% and 90.63%, respectively. The copper thiocyanate in flocculent precipitate generated during the electric adsorption process was over 90%, meanwhile, the copper and zinc enriched in the anode plate, suggesting that there are interaction of directional migration and enrichment precipitation of the ions in solution during the process of electric adsorption.
- Note:
- 宋永辉
- Co-author:
- 雷思明,吴春辰
- First Author:
- 兰新哲,songyonghui
- Indexed by:
- Journal paper
- Volume:
- 卷：
- Issue:
- 期：
- Page Number:
- 页：894-902
- Translation or Not:
- no
- Date of Publication:
- 2015-06-01
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