Utilization and treatment of exhausted cooling oil-emulsions

被引:8
作者
Gorzka, Z. [1 ]
Kazmierczak, M. [1 ]
Socha, A. [1 ]
Michalska-Jednoralska, A. [1 ]
机构
[1] Inst. of General/Environmental Chem., Technical University of Lodz, ul. Zwirki 36, 90-924 Lodz, Poland
关键词
Copper - Electrochemistry - Emulsions - Industrial waste treatment - Organic compounds - Oxidation - Reduction - Separation - Waste utilization;
D O I
10.1016/0956-053X(92)90036-I
中图分类号
学科分类号
摘要
The subject of investigation was exhausted cooling oil-emulsions coming from copper wire drawing. The summary content of the organic substances in emulsions expressed as COD, ranged from 200 to 300 gO2/dm3. The total amount of copper was about 7 g/dm3. The suggested method of treatment was based on separation of emulsion, thermocatalytic oxidation of the oil phase and electrochemical reduction of copper. The method allows oxidation of 99% organic substances in an autothermic way and over 90% recovery of metallic copper contained in emulsion with energy consumption at 2.2 kWh/kg.
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页码:345 / 348
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