摘要
基于藻类粘附行为设计淀粉基阳离子型有机高分子絮凝剂,探索了最佳制备及应用工艺条件,结果表明:在m木薯淀粉:mDAC:mAM=2.8:1:2,Na OH和95%乙醇溶液用量分别为淀粉质量的2.0%和2倍,引发剂用量为单体总质量的0.1%,反应p H为6.0,温度55℃,时间2 h时可制得特性黏度133.2 m L/g的絮凝剂,该絮凝剂投加量为20.0 mg/L,p H=8.0时,可絮凝沉降96.5%的微藻。
Based on characteristics of algae adhesion behavior, the microalgae flocculant was designed. The optimum preparation and application conditions were explored. The results show that, when NaOH and 95% ethanol solutions are 2.2% and 2 times the starch quality, respectively, cassava starch： DAC：AM=2：1：2 （mass ratio）, initiator agent is 0.1% of the total mass, reaction pH is 6.0, the temperature is 55 ℃, reaction time is 2 h, the flocculant with intrinsic viscosity [η] of 133.2 mL/g can be prepared; when self-made flocculant dosage is 20 mg/L, pH=8, 96.5% microalgae can be flocculated and settled in the water.
出处
《当代化工》
CAS
2016年第7期1329-1332,共4页
Contemporary Chemical Industry
关键词
微藻絮凝剂
天然高分子
阳离子絮凝剂
microalgae flocculant
natural polymer
cationic flocculant
