摘要
以天然高分子物Ｆ６９１粉为原料，合成了一种新型阳离子絮凝剂ＦＮＱＤ。研究表明：在ＮａＯＨ／Ｆ６９１ 质量比１、醚化剂／Ｆ６９１ 质量比１．５，反应温度５０℃、反应时间３ｈ 条件下，ＦＮＱＤ具有优异的絮凝性能。当ｐＨ＝ ７、投加量３ｍ ｇ／ｌ时，ＦＮＱＤ对高岭土悬浊液的浊度去除率＞ ９５％ ，絮凝性能明显优于ＰＡＭ－ Ｃ。
A novel cationic flocculant FNQD was produced by using the natural polymer F 691 powder as raw material.The studies showed that:FNQD had excellent flocculation performance under the conditions of NaOH/F 691 mass ratio=1,etherizing agent/F 691 mass ratio=1.5,reacting temperature=50℃ and reacting time=3 hours.The turbidity removal ratio of FNQD toward kaolinite containing suspension was larger than 95% when pH value was 7 and dosage of FNQD was 3 mg/l,which was clearly superior to that of PAM-C.The mechanism studies demonstrated that the excellent flocculation effect and good running stability of FNQD come mainly from the mosaic force between FNQD and colloid and the semirigid structure of FNQD molecule chain.
出处
《重庆环境科学》
1999年第6期30-32,共3页
Chongqing Environmental Science
基金
广东省自然科学基金
关键词
天然高分子
阳离子
絮凝剂
合成
性能
机理
Natural polymer,Cationic flocculant,Preparation method,Floccultion performance,Mechanism.
