二甲基二烯丙基氯化铵共聚物合成条件对其絮凝特性的影响
|
摘要
通过改变二甲基二烯丙基氯化铵(DMDAAC)与丙烯酰胺(AM)共聚反应的原料投加比、反应时间、反应温度及引发剂用量,制得不同性状的共聚产物(PDA),使用高岭土悬浊液对产物絮凝性能进行了考查。结果表明:在0.07%的过硫酸钠引发下,50℃条件下反应4h得到的共聚物PDA絮凝除浊性能最佳;同等用量的PDA比二甲基二烯丙基氯化铵均聚物(PDMDAAC)具有更优的絮凝除浊效果;PDA与无机絮凝剂硫酸铝联合使用时,硫酸铝可显著提升PDA的絮凝除浊效果。本研究有利于系统认识DMDAAC型有机高分子材料的混凝特性,为其在水处理工程中的应用提供理论依据。
Copolymerization products(PDA)with different characteristics were prepared in the laboratory by changing the ratio between dimethyl diallyl ammonium chloride(DMDAAC) and acrylamide(AM),the reaction time,reaction temperature and the amount of initiator(sodium persulfate). Flocculation performance of various products were tested by the kaolin suspension. The experimental results demonstrated that the maximum removal ratio of turbidity was obtained asthe dosage of sodium persulfate was 0.07%,the reaction time and temperature were 4 h and 50℃ respectively. PDA was more effective than dimethyldiallyl ammonium chloride(PDMDAAC)at the same utilization amount. When PDA was added with aluminum sulfate which was a typical inorganic flocculant,the turbidity removal effect could beefficiently enhanced. This study was in favor tosystematically understand the coagulation characteristics of organic polymer materials such as DMDAAC,which provided a theoretical basis for its application in wastewater treatment.
Copolymerization products(PDA)with different characteristics were prepared in the laboratory by changing the ratio between dimethyl diallyl ammonium chloride(DMDAAC) and acrylamide(AM),the reaction time,reaction temperature and the amount of initiator(sodium persulfate). Flocculation performance of various products were tested by the kaolin suspension. The experimental results demonstrated that the maximum removal ratio of turbidity was obtained asthe dosage of sodium persulfate was 0.07%,the reaction time and temperature were 4 h and 50℃ respectively. PDA was more effective than dimethyldiallyl ammonium chloride(PDMDAAC)at the same utilization amount. When PDA was added with aluminum sulfate which was a typical inorganic flocculant,the turbidity removal effect could beefficiently enhanced. This study was in favor tosystematically understand the coagulation characteristics of organic polymer materials such as DMDAAC,which provided a theoretical basis for its application in wastewater treatment.
引文
[1]张继伟,徐晶晶,刘帅霞,等.环境友好絮凝剂在印染废水处理中的应用进展[J].化工进展,2016,35(7):2205-2214.
[2]赵建兵,王世兵.淀粉接枝丙烯酰胺絮凝剂的合成及影响因素[J].安徽化工,2015,41(2):28-30.
[3]刘占孟,叶鑫,聂发辉.复合絮凝剂处理冬季低温低浊水的效果及其微观形态[J].中国给水排水,2016(3):61-65.
[4]应良飞,朱传俊,杨开吉,等.聚二甲基二烯丙基氯化铵的技术指标及其检测方法[J].工业水处理,2016,36(12):118-120.
[5]张雪,张鹏.有机高分子絮凝剂PDA的研究进展[J].山西建筑,2014(6):146.
[6]岳钦艳,赵华章.二甲基二烯丙基氯化铵聚合物的除浊性能研究[J].工业水处理,2002(3):26-31.
[7]孟凡娜,李明明.聚二甲基二烯丙基氯化铵的染料废水脱色性能研究[J].资源节约与环保,2013(7):45.
[2]赵建兵,王世兵.淀粉接枝丙烯酰胺絮凝剂的合成及影响因素[J].安徽化工,2015,41(2):28-30.
[3]刘占孟,叶鑫,聂发辉.复合絮凝剂处理冬季低温低浊水的效果及其微观形态[J].中国给水排水,2016(3):61-65.
[4]应良飞,朱传俊,杨开吉,等.聚二甲基二烯丙基氯化铵的技术指标及其检测方法[J].工业水处理,2016,36(12):118-120.
[5]张雪,张鹏.有机高分子絮凝剂PDA的研究进展[J].山西建筑,2014(6):146.
[6]岳钦艳,赵华章.二甲基二烯丙基氯化铵聚合物的除浊性能研究[J].工业水处理,2002(3):26-31.
[7]孟凡娜,李明明.聚二甲基二烯丙基氯化铵的染料废水脱色性能研究[J].资源节约与环保,2013(7):45.