从透光率分析油田污水中HPAM与阳离子化合物的相互作用  

From transmittance observing the interaction between HPAM and cationic compounds in the oilfield wastewater

作　　者：吴得南[1] 熊伟[1] 谢立娟[1] 于海南[1] 

机构地区：[1]东北石油大学化学化工学院石油与天然气化工省重点实验室,黑龙江大庆163318

出　　处：《化工科技》2012年第1期26-29,共4页Science & Technology in Chemical Industry

摘　　要：通过考察3种不同水处理剂对模拟污水的絮凝效果,初步探索了不同分子结构的水处理剂与污水中残留的部分水解聚丙烯酰胺(HPAM)相互作用,并研究了一价、二价盐存在时对水处理剂与HPAM间的相互作用影响。研究表明,3种水处理剂中,阳离子型聚丙烯酰胺(CPAM)对于模拟污水的处理效果最好,且受ρ(残留HPAM)的影响最小,具有较广泛的使用范围,在ρ(残留HPAM)<800mg/L时处理后的模拟污水的透光率均在80%以上。对同一ρ(残留HPAM)的模拟污水,无机盐对水处理剂具有协同作用,污水中存在CaCl2时絮凝效果比存在NaCl的絮凝效果更好,二价金属阳离子和HPAM之间的相互作用比一价金属阳离子更剧烈。Through the investigation of flocculation effect of simulated wastewater by using three dif- ferent water treatment agents, the interaction between water treatment agents with different struc- tures and residual partially hydrolyzed polyacrylamide（HPAM）in wastewater was explored preliminarily, and also, as the monovalent or divalent metal salts exist, the influence of interaction between wa- ter treatment agents and HPAM was investigated. Among the above three water treatment agents,ac- cording to the study, cationic polyacrylamide（CPAM）had the best effect on the simulated wastewater, and its flocculation was minimally influenced by the residual HPAM, it had an extent area to use, transmittancies of wastewater treated by CPAM reached over 80% when the concentration of residual HPAM was less than 800 mg/L. Inorganic salts have a synergistic effect on water treatment agents, and compared CaC12 with NaCl,the same water treatment agent has better flocculation effect when the CaC12 existed in the wastewater. The interaction between divalent metallic cations and HPAM was more intense than monovalent metallic cations.

关 键 词：部分水解聚丙烯酰胺 水处理剂 阳离子聚丙烯酰胺 阳离子超支化聚合物 相互作用 

分 类 号：X703[环境科学与工程—环境工程]