氢氧化镁处理活塞内冷油道清理液的研究

Removal of treating fluid in the inner-cooling oil duct of piston with magnesium hydroxid

活塞内冷油道清理液属含铜酸性废水,直接排放会严重影响水体生态系统。以氢氧化镁作为废水处理剂,研究氢氧化镁用量、搅拌时间、反应温度等对清理液处理结果的影响,并得出最佳处理条件。结果表明,氢氧化镁对活塞内冷油道清理液的处理,操作简便、去除率高,上清液可达到排放标准,铜离子的质量浓度≤0.5mg/L。

The treating fluid in the inner-cooling oil duct of piston is acid wastewater containing copper ion, which would adversely affect the aquatic ecosystem after direct emission. The effect of magnesium hydroxide dosage, stirring time and temperature on the treating results of treating fluid was studied with magnesium hydroxide as a wastewater treatment agent, and the optimum treatment conditions was obtained. The results indicate that magnesium hydroxide has excellent performance, including easy operation, high removal rate, and supernatant can meet emission standards ：c （Cu^2＋）≤ 0.5 mg/L.