| 镍铜冶炼烟气制酸系统酸性水处理及再利用 |
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| 引用本文： | 冯臻,甘宪福,董尚志,王家蓉,唐兴东. 镍铜冶炼烟气制酸系统酸性水处理及再利用[J]. 硫酸工业, 2012, 0(1): 42-45 |
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| 作者姓名： | 冯臻 甘宪福 董尚志 王家蓉 唐兴东 |
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| 作者单位： | 1. 金川集团有限公司,甘肃金昌737100／西安建筑科技大学,陕西西安710055
2. 金川集团有限公司,甘肃金昌,737100 |
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| 摘 要： | 介绍了金川集团有限公司镍、铜冶炼烟气制酸系统酸性水处理及再利用情况。镍冶炼烟气制酸系统酸性水主要特点为悬浮物含量较高,采用过滤、沉降处理技术;铜冶炼烟气制酸系统酸性水成分较复杂,采用硫化钠除铜及初步除砷、EX2000深度除砷2级处理技术。装置自投用以来运行稳定,7套制酸装置产生的酸性水70%得到回用,废水排放量由原来的550 m~3/h减少到157 m~3/h;除铜率达98%以上,除砷率达94%以上,减排效果明显。
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| 关 键 词： | 镍 铜 冶炼烟气 硫酸生产 酸性水 减排 |
Treatment and reuse of acidic water from sulphuric acid production based on nickel and copper smelter off-gases |
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| FENG Zhen,GAN Xianfu,DONG Shangzhi,WANG Jiarong,TANG Xingdong. Treatment and reuse of acidic water from sulphuric acid production based on nickel and copper smelter off-gases[J]. Sulphuric Acid Industry, 2012, 0(1): 42-45 |
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| Authors: | FENG Zhen GAN Xianfu DONG Shangzhi WANG Jiarong TANG Xingdong |
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| Affiliation: | 1 (1.Jinchuan Group Ltd.,Jinchang,Gansu,737100,China;2.Xi’an University of Architecture & Technology,Xi’an Shaanxi,710055,China) |
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| Abstract: | Treatment and reuse of acidic water from sulphuric acid production based on nickel and copper smelter off-gases in Jinchuan Group are described.The acidic water from nickel-sulphuric acid systems features high suspended solid content,so filtration and settling technologies were adopted.For the acidic water from copper-sulphuric acid systems,because of much more complicated composition,the technology consisting of initial arsenic removal with sodium sulphide and secondary treatment for further arsenic removal with EX2000 settling aid was used.The plants have been operating well since start up with copper removal efficiency of more than 98%and arsenic removal efficiency of more than 94%.70%of acidic water form 7 sulphuric acid plants was reused and the water discharge was significantly reduced from 550 m /h to 157 m~3/h. |
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| Keywords: | nickel copper smelter off-gas sulphuric acid production acidic water discharge reduction |
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