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| Chlorine Removal from Waste Acid of Zinc Hydrometallurgy by Electrocatalytic Oxidation Process |
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Received:June 03, 2017
Revised:June 09, 2017
Accepted:June 12, 2017
Published Online:November 22, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.12.013 |
| KeyWord:electrocatalytic oxidation; chlorine removal; sulfuric acid wastewater; zinc hydrometallurgy |
| Author | Institution |
| Guo Yadan |
广西华锡集团股份有限公司 |
| Yu Wenchao |
东华理工大学 |
| Chen Jinquan |
广西华锡集团股份有限公司 |
| Li Yiran |
东华理工大学 |
| Liang Ping |
东华理工大学 |
| Li Peng |
东华理工大学 |
| Wang Xuegang |
东华理工大学 |
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| Abstract: |
| Static and continuous flowing experiments of high chloride-bearing simulated sulfuric acid wastewater were carried out with self-made electrocatalytic oxidation device. Influencing factors and performance of chlorine by electrocatalytic oxidation were investigated. The results of static experiments show that removal rate of Cl- is 89.27% under the conditions including Cl- initial concentration of 1 000 mg/L, pH value of 1.2, current density of 21 mA/cm2, electrode distance of 1 cm, and electrolysis time of 30 min. The results of continuous flowing experiments show that removal rate of Cl- is 79.52% under the conditions including Cl- initial concentration of 1 000 mg/L, flow rate of 52.63 cm3/min, and electric current of 3.4 A. Removal rate of Cl- from industrial wastewater by electrocatalytic oxidation is 82.36%, and Cl- content of processed value is lower than recycling standard of GB/T 19923-2005. |
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