弱型混合离子交换树脂再生新工艺研究

A Novel Technology for the Regeneration of Weak Mixed Ion-Exchange Resin

以反应性离子交换和化学平衡为基础,通过正交实验探索失效的弱型混合离子树脂与新生氢氧化铝凝胶的反应规律及影响因素.结果表明,氢氧化铝凝胶与弱型混合树脂的作用能使部分阴树脂再生为游离胺型,部分阳树脂转化为羟基铝型,树脂再生度高于希劳塞姆法,显示出两性氢氧化铝凝胶的促进作用.预料在废水处理中具有应用前景.

Based on chemical equilibrium and reaction of ion-exchange. the affecting factors of the reaction between the weak mixed ion-exchange resin and the aluminium hydroxide colloid are studied by static test. The result shows that the reaction can regenerate weak mixed ion-exchange resin, and the renreal degree of the resin is greater than that of the Sirotherm method.