摘要：

通过测定聚合物驱含油污水中油珠、絮体及Zeta电位的大小,研究了污水油含量、固体悬浮物含量、聚合物浓度对油珠及悬浮物的亚微观聚集形态、表面电荷及污水稳定性的影响。结果表明,随聚合物浓度或油含量的增加,污水中的油珠、絮体均有变大的趋势;随固体悬浮物浓度的增加,污水中的油珠、絮体不仅有变大的趋势,且大尺寸的絮体数量显著增加。聚合物浓度对带电颗粒的Zeta电位有显著的影响,聚合物浓度越高,带电颗粒的Zeta电位绝对值越高。表明聚合物是聚合物驱采油污水处理低效的原因。

关键词: 聚合物驱, 含油污水, 聚集特性

Abstract:

The effects of oil content,solid suspend(SS) content and polymer concentration on oil-droplet,SS submicrocosmic aggregative form,surface charge and stability of wastewater have been studied by means of determining oil-droplet size,floc size and Zeta potential.The results show that the sizes of oil-droplets and flocs in wastewater tend to become bigger with the increase of oil content and polymer concentration;and with the increase of SS content,flocs and oil-droplet sizes in wastewater not only tend to become bigger,but the amount of big-size flocs increases obviously.The polymer concentration has obvious effect on the Zeta potential of charged particles.The higher the polymer concentration is,the higher the Zeta potential absolute value of charged particles are.It demonstrates that the polymer in wastewater is the cause of low efficiency for polymer-flooding oil-bearing wastewater treatment.

Key words: polymer-flooding, oil-bearing wastewater, aggregative properties

中图分类号: 

• X741