| 铁盐共沉淀泡沫浮选法去除废水中Cr(VI)的应用研究 |
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| 引用本文： | 王九思,吕江平,刘剑,孔爱平.铁盐共沉淀泡沫浮选法去除废水中Cr(VI)的应用研究[J].应用化工,2009,38(5). |
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| 作者姓名： | 王九思 吕江平 刘剑 孔爱平 |
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| 作者单位： | 兰州交通大学,化学与生物工程学院,甘肃,兰州,730070 |
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| 摘 要： | 采用铁盐共沉淀泡沫浮选法去除废水中Cr(VI),用FeSO4将六价铬还原成三价状态,考察了还原剂用量、捕捉剂品种及pH对总铬去除率的影响。结果表明,对浓度为10 mg/L的含Cr(VI)模拟废水,使用FeSO4作还原剂,LAS作捕捉剂,铁铬摩尔比为7∶1,pH=10,鼓泡10 min的条件下,Cr(VI)去除率可达99.1%。
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| 关 键 词： | 铬离子 铁盐共沉淀 泡沫浮选 去除率 |
Study of application on removal of Cr(VI) in wastewater by method of coprecipitation with molysite bubble flotation |
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| WANG Jiu-si,LV Jiang-ping,LIU Jian,KONG Ai-ping.Study of application on removal of Cr(VI) in wastewater by method of coprecipitation with molysite bubble flotation[J].Applied chemical industry,2009,38(5). |
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| Authors: | WANG Jiu-si LV Jiang-ping LIU Jian KONG Ai-ping |
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| Abstract: | In this paper,removal of Cr(VI)in wastewater by coprecipitation with molysite bubble flotation,Cr(VI)is reduced Cr(Ⅲ)by FeSO4,investigating the dosage of reducer,capturing agent and pH on removal of Cr(VI).The experimental results reveal that,in simulated wastewater containing Cr(VI)10 mg/L,using FeSO4 as reducing agent,using LAS for capturing agent,with Fe-Cr mole ratio 7 ∶1,pH is kept 10 and pumping air is stayed for 10 min in foam separation tower,removal rate Cr(VI)is up to 99.1%. |
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| Keywords: | Cr(VI) coprecipitation with molysite bubble flotation removal rate |
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