絮凝作用对HEDP防垢性能的影响

絮凝剂ＰＨＰ、防垢剂ＨＥＤＰ是油田水处理常用的药剂。在油田水处理过程中，调节污水的ＰＨ、投加絮凝剂常常与投加防垢剂一起或先后进行。本文对投加絮凝剂和调节ＰＨ对防士兵防垢性能的影响进行了研究。实验结果证明，絮凝剂的絮凝作用和ＰＨ调节产生的Ｆｅ（ＯＨ）２，均会使污水中的ＨＥＤＰ含量发生变化，防垢性能受到影响。

The Influence of Flocculation on HEDP''''s Scaling Inhibition Fnnction

The flocculant PHP and the scaling inhibitor HEDP are two chemical agents commonly used in the treatment of oil field water.In the treatment,it is necessary to regulate pH of the water,and add PHP and HEDP into the water together or one after the another.In the paper,the influences of the flocculant dose and pH regulation on the function of the scaling inhibitor are studied.The experimental results show that the flocculation of PHP and the regulation of pH(due to forming Fe(OH)3)can make change of HEDP content in the water,resulting in affecting its scaling inhibition function.