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| Treatment of Arsenic and Ammonia-Nitrogen Wastewater in Tungsten Smelting by Calcium Hypochlorite and Ferrous Sulfate |
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Received:October 10, 2016
Revised:October 20, 2016
Accepted:October 21, 2016
Published Online:January 22, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.02.016 |
| KeyWord:tungsten smelting; wastewater; ammonia-nitrogen; arsenic removal; calcium hypochlorite; ferrous sulfate |
| Author | Institution |
| OUYANG Ting |
南昌大学资源环境与化工学院 |
| Fan Hua |
南昌大学资源环境与化工学院 |
| wangtao |
江西省环境保护科学研究院 |
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| Abstract: |
| Arsenic and ammonia-nitrogen wastewater in tungsten smelting was treated with calcium hypochlorite and ferrous sulfate by two-step static process. The optimum conditions were determined by single factor test. The results show that removal efficiency of As and NH4 -N is 99% above with concentration of As and NH4 -N in treated wastewater of <0.05 mg/L and <0.15 mg/L respectively, which meets the discharge requirements of GB8978-1996 standard. |
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