| 气浮—磁分离工艺处理含油废水 |
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| 引用本文： | 杨瑞洪,钱琛,赵云龙,邓阳清.气浮—磁分离工艺处理含油废水[J].化工环保,2011,31(4). |
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| 作者姓名： | 杨瑞洪 钱琛 赵云龙 邓阳清 |
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| 作者单位： | 1. 扬州工业职业技术学院化学工程系,江苏扬州,225127
2. 常州大学环境与安全工程学院,江苏常州,213164 |
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| 摘 要： | 采用气浮—磁分离工艺处理某石化企业的含油废水,重点考察了磁分离单元的工艺条件对除油率的影响。实验结果表明磁分离单元的最佳工艺条件为:絮凝剂聚合氯化铝加入量25 mg/L,磁种加入量100 mg/L,磁场强度40 mT,搅拌条件为先以150 r/min的转速搅拌2 min,再以50 r/min的转速搅拌5 min。在最佳工艺条件下进行气浮—磁分离工艺除油实验,在进水油质量浓度平均为29.5 mg/L时,气浮单元出水油质量浓度平均为8.5 mg/L,除油率平均为71.1%;磁分离单元出水油质量浓度平均为4.7 mg/L,除油率平均为44.1%;总除油率平均为83.8%。
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| 关 键 词： | 磁分离 磁种 气浮 絮凝 除油 废水处理 |
Treatment of Oily Wastewater by Flotation-Magnetic Separation Process |
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| Yang Ruihong,Qian Chen,Zhao Yunlong,Deng Yangqing.Treatment of Oily Wastewater by Flotation-Magnetic Separation Process[J].Environmental Protection of Chemical Industry,2011,31(4). |
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| Authors: | Yang Ruihong Qian Chen Zhao Yunlong Deng Yangqing |
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| Institution: | Yang Ruihong1,Qian Chen1,Zhao Yunlong1,Deng Yangqing2(1.Department of Chemical Engineering,Yangzhou Polytechnic Institute,Yangzhou Jiangsu 225127,China,2.College of Environment and Safety Engineering,Changzhou University,Changzhou Jiangsu 213164,China) |
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| Abstract: | The oily wastewater of a petrochemical enterprise was treated by flotation-magnetic separation process.The effects of the process conditions in the magnetic separation unit on the oil removal rate were studied especially.The optimum process conditions are as follows: flocculant PAC dosage 25 mg/L,magnetic seed dosage 100 mg/L,magnetic field strength 40 mT,stirring time 2 min with 150 r/min of rotation speed,stirring time 5 min with 50 r/min of rotation speed.Under theses conditions,and when the average oil ... |
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| Keywords: | magnetic separation magnetic seed flotation flocculation oil removal wastewater treatment |
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