摘要
介绍了淀粉 丙烯酰胺接枝共聚物(SGM)对中和后的黄磷废水的絮凝净化作用,其处理效果超过聚丙烯酰胺(PAM)。试验结果表明:SGM的支链相对分子质量大于8×106,水解度为27%,接枝聚合物接枝率为60%,絮凝效果最佳。SGM提高絮凝效果的原因是:接枝共聚物在空间结构方面比均聚物显现出较大的比表面积,对桥连有利。
The flocculating purification of yellow phosphorus wastewater with starchacrylamide graft copolymer (SGM) is described. Its purification effect is better than that of polyacrylamide (PAM).The experimental results show that the flocculating purification effect is the best when its branch molecular weight is 8×106,its hydrolytic degree is 27% and its graft degree is 60%.Gratf copolymer has bigger specific surface area than homopolymer in spatial structure,which is propitious to bridging.That is why SGM can improve flocculating purification effect.
出处
《化工环保》
CAS
CSCD
北大核心
2002年第6期367-369,共3页
Environmental Protection of Chemical Industry
基金
云南省教委青年教师科研基金资助项目(169942015)
