| 高浊度钼矿浮选废水的混凝沉淀 |
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| 引用本文： | 石敏,孙春宝,李明颖,邱德侣,孙大勇.高浊度钼矿浮选废水的混凝沉淀[J].环境工程学报,2013,7(1):247-252. |
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| 作者姓名： | 石敏 孙春宝 李明颖 邱德侣 孙大勇 |
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| 作者单位： | 北京科技大学土木与环境工程学院,北京,100083 |
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| 摘 要： | 针对某钼矿选矿厂浮选废水,以PAC、PFS和FeCl3为凝聚剂,以APAM-A和APAM-N为絮凝剂,以H2SO4和NaOH为pH调整剂,研究了不同混凝剂、不同pH值和不同水力条件下废水处理后的浊度和COD.实验结果表明,在最佳水力条件下,原水pH不调整,以APAM-A为絮凝剂,以PAC为凝聚剂,其用量分别为15 g/t,750g/t时,处理后上清液浊度为25 NTU,COD小于30 mg/L.浮选废水经处理后回用于选矿浮选流程,大大改善了选矿指标.
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| 关 键 词： | 钼矿浮选废水 高浊度 混凝沉淀 回用 |
Coagulation of high turbidity flotation wastewater of molybdenum ore |
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| Shi Min Sun Chunbao Li Mingying Qiu Delü Sun Dayong.Coagulation of high turbidity flotation wastewater of molybdenum ore[J].Techniques and Equipment for Environmental Pollution Control,2013,7(1):247-252. |
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| Authors: | Shi Min Sun Chunbao Li Mingying Qiu Delü Sun Dayong |
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| Institution: | School of Civil and Environmental Engineering, University of Science and Technology Beijing,Beijing 100083,China;School of Civil and Environmental Engineering, University of Science and Technology Beijing,Beijing 100083,China;School of Civil and Environmental Engineering, University of Science and Technology Beijing,Beijing 100083,China;School of Civil and Environmental Engineering, University of Science and Technology Beijing,Beijing 100083,China;School of Civil and Environmental Engineering, University of Science and Technology Beijing,Beijing 100083,China |
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| Abstract: | The residual turbidity and COD of the wastewater with different coagulants, different pH value and different hydraulic conditions were examined, using PAC, PFS and FeCl3 as coagulants, APAM-A and APAM-N as flocculants, H2SO4 and NaOH as pH regulators. The results show that the effects were optimum with the combination of 15 g/t APAM-A and 750 g/t PAC, and the pH value without regulation under the best hydraulic condition. The turbidity of the wastewater after treatment was 25 NTU, and COD was less than 30 mg/L. The treated wastewater was reused in the flotation and the mineral indexes were improved greatly. |
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| Keywords: | flotation wastewater of molybdenum ore high turbidity coagulation reuse |
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