The recovery of polyvinyl alcohol(PVA)from simulated desiring wastewater by new salting-out is investigated.The optimal component ratio of new salting agent is obtained through orthogonal experiment.

• 采用加入少量碳酸钠助剂的盐析法新配方处理回收退浆废水中的聚乙烯醇(PVA),并通过正交实验得出了新凝结剂的最佳组成配比。