摘要
采用反相乳液聚合技术,以甲基丙烯酰氧乙基三甲基氯化铵、丙烯酰胺及N,N-二甲基丙烯酰胺作为聚合单体,通过引入壳聚糖对阳离子乳液聚合物进行改性处理,研究了壳聚糖对阳离子乳液聚合物功能化改性后的结构特性,评价了改性后的阳离子乳液聚合物在再生纸废水及含油污水处理中的絮凝性能。结果表明:在壳聚糖质量分数为8%、改性阳离子乳液聚合物投加量为28 mg/L时,再生纸废水的化学需氧量(COD)去除率可达97%~98%,悬浮物去除率可达96%;而在改性阳离子乳液聚合物投加量为6 mg/L时,对含油污水的脱油效率可达98.43%。
The cationic lotion polymer was modified by inverse emulsion polymerization technology,using methacryloyloxyethyl trimethylammonium chloride,acrylamide and N,N-dimethylacrylamide as polymerization monomers,and introducing cationic chitosan.The structural characteristics of cationic chitosan functionalized cationic emulsion polymer were studied,and the flocculation performance of the polymer in treating recycled paper wastewater and oil-bearing wastewater was further evaluated.The results showed that when the dosage of cationic chitosan modifier was 8%,and the dosage of modified cationic lotion polymer was 28 mg/L,the removal rate of chemical oxygen demand(COD)of recycled paper wastewater was 97%-98%,and the removal rate of suspended solids was 96%;When the dosage of modified cationic emulsion polymer is only 6 mg/L,the deoiling efficiency for oily sewage can reach 98.43%.
作者
杨开吉
刘志光
张颖
曾喆
王仲广
Yang Kaiji;Liu Zhiguang;Zhang Ying;Zeng Zhe;Wang Zhongguang(CNOOC(Tianjin)Oilfield Chemical Co.,Ltd.,Tianjin 300452,China;Key Laboratory of Oilfield Chemistry of CNOOC Development,Tianjin 300452,China)
出处
《精细石油化工》
2025年第1期9-13,共5页
Speciality Petrochemicals
基金
海油发展重大专项(E-J22A008)。
关键词
壳聚糖
阳离子乳液聚合物
功能化改性
絮凝性能
chitosan
cationic emulsion polymer
functional modification
flocculation performance
