摘要
以天然高分子植物胶粉为合成原料,在微波加热条件下改性制得一种新型阳离子生物絮凝剂。经正交实验优化确定合成条件为:当投加95%乙醇0.5 mL/g胶粉、氢氧化钠0.3 g/g胶粉碱化15 min以及阳离子醚化剂与胶粉质量比为1∶14、微波功率和微波时间分别为288 W与3 min时,制成的絮凝剂极限粘度为0.6803 dL/g。该阳离子生物絮凝剂对印染废水和洗煤废水具有很好的处理效果,红外光谱分析表明植物胶粉已经成功接枝阳离子基团。
A new cationic green bioflocculant（CGBF） were synthesized with the natural polymer powder under microwave heating conditions.Based on orthogonal experiments,the synthesis process was optimized as follows： 1 g powder scattered with 0.5 mL C2H5OH（95%）,alkalified with 0.3 g NaOH for 15 min,then etherified with 1/14 cationic reagent under the microwave conditions of 288 W and 3 min.Limit viscosity of CGBF was 0.6813 dL/g.The bioflocculant had good removal efficiency on and the treatment of dyeing and coal-washing wastewater,and the cationic group was successfully grafted on powder by infrared spectroscopic analysis.
出处
《广州化工》
CAS
2011年第16期1-3,共3页
GuangZhou Chemical Industry
基金
国家科技重大专项"水体污染控制与治理"(2009ZX07212-002-002)
陕西省科学技术研究发展计划(2008k07-14)
温州市科技计划项目(H20100004)
陕西省教育厅项目(09JK453)
关键词
阳离子
生物絮凝剂
微波
极限粘度
cationic
bioflocculate
microwave
limit viscosity
