稀土复合絮凝剂的研究

A Study on the Rare Earth Composite Flocculant

报道了新型RE絮凝剂及RE复合絮凝剂的研制及应用性能,并与聚合氯化铝进行了比较。通过混凝实验,确定了其最佳投加量、适用pH值范围、沉降时间等工艺条件。进行了RE絮凝剂与有机配合剂的复配研究,并证明RE复合絮凝剂具有絮体生成快、颗粒密度大、沉降速度快和COD去除率高的特点。

The preparation and applicational features of the newly-developed RE flocculant and RE composite flocculant have been reported in this paper, and comparisons have been made with poly aluminium chloride The optimal amount of the RE flocculant, the range of the pH value of the environment suitable for its application, its sedimentation velocity, and other technical conditions have been determined through the flocculation test In the blending research of the RE flocculant and organic polymer, the RE composite flocculant has been proved to produce floccules of high density at a high velocity, and also possess high sedimentation velocity and COD removal rate