超滤/电渗析法处理驱采污水与回用

Ultrafiltration/Electrodialysis Process for Treatment and Reuse of Polymer-flooding Sewage

为将油田驱采出水经处理后回用作聚合物配制用水,开展了超滤与电渗析联用处理含聚合物污水的试验研究。结果表明,管式超滤膜能有效去除水中的原油、悬浮物和聚合物等杂质,保证了电渗析装置的平稳运行,而电渗析是一种经济有效的降矿化度技术;处理出水能够达到和清水一样的配液效果,从而可以代替清水用于现场配制聚合物溶液。

In order to have the polymer-flooding wastewater treated and reused for preparation of polymer, the experimental study was conducted on the combined ultrafihration/electrodialysis process for treatment of polymer-containing wastewater. The result shows that tubular uhrafiltration membrane is able to remove crude oil, suspended substances, and polymer from the wastewater and ensures the reliable operation of electrodialysis device. Electrodialysis is a cost-effective technology for demineralization; the treated effluent has the same effectiveness as the fresh water for preparation of polymer solution, so that it can be used for field preparation of polymer solution in place of fresh water.