摘要
通过微乳液法合成了高相对分子质量(Mr=1300万)、速溶的聚丙烯酰胺(PAM),采用FTIR及SEM对3种PAM结构进行了分析,并用PAM对武钢焦化厂和下陆炼铁厂废水中的悬浮物及COD的处理进行了研究。结果表明,实验合成的PAM溶解性能优于其他两种产品(溶解时间达到5 5min)。而且,实验合成的PAM对两种废水中悬浮物的去除效果等同或优于法国PAM,明显优于国内PAM。对焦化厂废水中悬浮物去除率达86 60%,炼铁厂废水悬浮物去除率高达97 48%。3种PAM对废水中的COD都有一定的去除效果,但去除率均低于60%。
The fast-solving polyacrylamide(PAM) with high molecular weight of 1.3×10~7 was prepared by microemulsion polymerization,and the structures of three kinds of PAM were analysed through FTIR and SEM.These three PAM were used to treat suspended matters and COD of the wasterwaters from the plants of puddling and coke making.The results showed that the dissolvability of lab-PAM(dissolution time was only 5.5 min) was better than that of other two products.Furthermore,the suspended matter removal effect of lab-PAM was equal or better than that of French PAM,and obviously exceeded that of native PAM:the suspended matter removal rate was 98% in effluent of puddling plant,and 87% in effluent of coke making plant.There were certain removal effects of COD in wasterwaters by adding three kinds of PAMs,but the removal rate was not high(<60%).
出处
《精细化工》
EI
CAS
CSCD
北大核心
2004年第z1期50-52,63,共4页
Fine Chemicals
关键词
微乳液
聚丙烯酰胺
絮凝剂
microemulsion
polyacrylamide
flocculating agent
