摘要
以7种常见的阳离子表面活性剂为絮凝剂,考察对海上某油田含聚合物废水的处理效果。实验结果表明:一定浓度时,十四烷基三甲基溴化铵和十六烷基三甲基溴化铵有很好的絮凝效果:阳离子季铵盐表面活性剂加入到含聚合物废水中后,先会与连续水相中的水解聚丙烯酰胺(HPAM)发生静电中和作用,剩余的表面活性剂扩散至油水界面与界面处HPAM作用后破坏HPAM对油滴的稳定作用,从而达到絮凝效果;阳离子表面活性剂的加入量与含聚合物废水中HPAM的浓度密切相关。
The polymer-containing wastewater in an offshore oilfield was treated using 7 kinds of common cationic surfactants as flocculents. The experimental results show that： Tetradecyl trimethyl ammonium bromide and cetyl trimethyl ammonium bromide with certain concentration have perfect flocculation effects; After the cationic surfactant is added into the polymer-containing wastewater, the electrostatic neutralization reaction will occur between it and hydrolyzed polyacrylamide（HPAM） in the continuous water phase firstly, then the rest of the surfactant will diffuse to the oil-water interface and react with HPAM located in the oil-water interface so as to destroy the effect of HPAM on oil droplet stabilization and realize the flocculation; There is a close relationship between the dosage of cationc surfactant and the concentration of HPAM in the polymer-containing wastewater.
出处
《化工环保》
CAS
CSCD
北大核心
2012年第5期401-404,共4页
Environmental Protection of Chemical Industry
基金
国家科技重大专项子课题(2011ZX05024-004-10)
关键词
聚合物
絮凝
阳离子表面活性剂
油水界面张力
ZETA电位
废水处理
polymer
flocculation
cationic surfactant
oil-water interracial tension
Zeta electricpotential
wastewater treatment
