| 石灰絮凝法去除矿坑废水中锰离子的研究 |
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| 引用本文： | 程建国,林永树,阳华玲,李淮湘.石灰絮凝法去除矿坑废水中锰离子的研究[J].矿冶工程,2012,32(2):45-48. |
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| 作者姓名： | 程建国 林永树 阳华玲 李淮湘 |
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| 作者单位： | 1.长沙矿冶研究院有限责任公司, 湖南 长沙 410012;
2.福建省潘洛铁矿有限责任公司, 福建 龙岩 364405 |
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| 摘 要： | 采用石灰絮凝法对福建潘洛铁矿矿坑废水中Mn离子进行了去除试验研究。石灰用量为150 g/m3, 阴离子PAM用量为0.5 g/m3, 98%硫酸用量为20 g/m3, 处理后出水达到GB8978-1996一级排放标准。通过对石灰沉淀除锰机理分析, 锰从废水中沉淀析出适宜的pH值应大于8.5, 而要使处理后废水锰含量达标(Mn含量低于2.0 mg/L), 则废水pH值应控制在10.0以上。实验室试验研究结果为后续的工程设计提供了较为合理的工艺流程。
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| 关 键 词： | 废水处理 矿坑废水 重金属离子 除锰 吸附絮凝 石灰 |
| 收稿时间： | 2011-11-01 |
Removal of Mn Ions from Mine Wastewater by Lime Flocculation |
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| CHENG Jian-guo
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LIN Yong-shu
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YANG Hua-ling
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LI Huai-xiang.Removal of Mn Ions from Mine Wastewater by Lime Flocculation[J].Mining and Metallurgical Engineering,2012,32(2):45-48. |
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| Authors: | CHENG Jian-guo LIN Yong-shu YANG Hua-ling LI Huai-xiang |
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| Affiliation: | 1.Changsha Research Institute of Mining and Metallurgy Co Ltd, Changsha 410012, Hunan, China;
2.Fujian Panluo Iron Ore Co Ltd, Longyan 364405, Fujian, China |
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| Abstract: | Lime flocculation was adopted to remove Mn ions in mine wastewater of Panluo Iron Mine,and the quality of water after treatment achieved grade I of national standard GB8978-1996,with the dosage of lime,anionic PAM and 98% sulfuric acid as 150 g/m3,0.5 g/m3 and 20 g/m3,respectively.According to the analysis for the mechanism of lime flocculation to remove Mn from the wastewater,it can be concluded that Mn can precipitate and be separated out when pH is greater than 8.5,and,the pH value should be over 10 to ensure that the content of Mn can be reduced to less than 2 mg/L.Based on bench tests,a rational flowsheet was recommended as a design reference for subsequent wastewater treatment works. |
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| Keywords: | wastewater treatment mine wastewater heavy metal ion removal of Mn adsorption and flocculation lime |
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