超滤膜分离技术在炼油废水深度处理中的应用

Application of ultrafiltration to the reuse of wastewater from petrochemical plant

针对石化厂炼油废水回用至锅炉补给水的节水技术进行了工艺研究。经二级生化处理后的废水,再经过直流絮凝和超滤去除悬浮物、降低浊度后,完全能够满足下游反渗透的进水要求,并最终实现整个回用水系统的可靠运行。

A 2-month pilot study for the reuse of refinery wastewater from petrochemical plants has been carried out to verify the process of 'Multimedia filter+ ultrafiltration + Reverse Osmosis'. The results show that the turbidity and SDI of ultrafiltration permeation are low enough to meet the requirements of the feed water of the following reverse osmosis.