摘要
采用十六烷基溴化吡啶(CPB)对聚苯乙烯阳离子交换树脂进行化学修饰得到改性树脂R-CPB,并将其作为填柱材料处理含油废水;通过测量树脂表面润湿性的变化和废水中油滴的Zeta电位值论证了CPB修饰树脂的除油机理。结果表明,CPB阳离子的化学修饰改变了树脂的表面润湿性能,使其亲水性下降而亲油性提高;R-CPB树脂主要通过影响油滴在废水中的Zeta电位来达到破乳的目的;在相同操作条件下,R-CPB树脂的除油去浊能力明显高于未改性树脂的,且在除油的稳定性上好于活性炭,具有较好的应用前景。
Cetylpyridinium bromide-modified polystyrene resin （R-CPB） was synthesized as packing material for treating oily wastewater. The oil removal mechanism was studied by resin surface wettability measurement and oil droplet Zeta potential test. The results indicate that the resin surface wettability is significantly altered and the hydrophilicity is decreased while the lipophilicity is increased. R-CPB influences the Zeta potential of oil droplets and therefore enhances the demulsification process. Under the same condition, R-CPB demonstrates a better oil and turbidity removal capacity than the un-modified polystyrene resins and a better oil removal stability than activated carbon, which shows a good future for application.
出处
《中国给水排水》
CAS
CSCD
北大核心
2010年第5期112-115,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目(50578170)
上海市重点学科资助项目(B506)
作者简介
电话：（021）64252876 E-mail：yanbo-zhou@yahoo．com．cn
责任作者：鲁军
