摘要
采用化学沉淀法回收电镀含镍废水中的Ni^(2+),研究了各工艺因素对回收效果的影响。实验结果表明,回收电镀含镍废水中Ni^(2+)的最佳工艺条件为:反应温度30℃,废水pH 12～13,0.1mol/L的NaOH溶液加入量70 mL,以聚丙烯酸钠为絮凝剂,搅拌转速1 250 r/min,搅拌时间2 min。将回收产物Ni(OH)_2用作润滑油添加剂可有效改善润滑油的摩擦磨损性能。
Ni^2＋ in the nickel-containing electroplating wastewater was recovered by chemical precipitation process, and the factors affecting the recovery effect were studied. The optimum process conditions for Ni^2＋ recovery are as follows： reaction temperature 30℃, wastewater pH 12 - 13, 0.1 mol/L NaOH solution dosage 70 mL, sodium polyacrylate used as flocculant, stirring speed 1 250 r/min and stirring time 2 min. The product Ni（OH） 2 can be used as additive in lubricating oil and significantly improve its antifriction and antiwear properties.
出处
《化工环保》
CAS
CSCD
北大核心
2009年第6期545-548,共4页
Environmental Protection of Chemical Industry
基金
江苏省科技厅社会发展计划(BS2007120)
江苏省火炬计划项目(H2007306)
国家中小型企业创新项目(08026213700982)
关键词
电镀废水
镍离子
化学沉淀法
回收工艺
润滑油
添加剂
废水处理
electroplating wastewater
nickel ion
chemical precipitation
recovery process
lubricating oil
additive
wastewater treatment
