稀土无机复合絮凝剂在化肥厂废水处理中的应用

Application of Rare-earth Inorganic Composite Flocculant in the Treatmentof Waste Water from Chemical Fertilizer Factories

本文介绍了一种新型稀土无机复合絮凝剂.通过该絮凝剂在化肥厂废水处理中的应用研究,确定了RE絮凝剂与无机高分子的最佳复配比例,研究了投加量对絮凝效果与COD去除率的影响,并且与RE有机复合絮凝剂、聚合氯化铝絮凝剂进行了比较,证明了RE无机复合絮凝剂具有絮体生成快,沉降速度快和COD去除率高等特点,是一种高效水处理剂.

A new rareearrh(RE) inorganic composite flocculant is introduced in this paper. In the research of its application in the treatment of waste water from chemical fertilizer factories, its optimal blending proportion with the inorganic polymer was determined; the influence that its amount had on the flocculation effect and COD removal rate was investigated; and comparisons were made with RE organic composite flocculant and poly aluminium chloride. The RE inorganic composite flocculant was proved to be a highpowered water treatment agent with high velocities in the production and sedimentation of floccules, and high COD removal rate.