油田污水处理的目的是去除水中的油、悬浮物,降低水中COD和LAS的含量,使得处理后的污水达到国家一级排放标准。所采用的技术包括重力分离、粗粒化、浮选法、过滤、膜分离以及生物法等十几种方法。表活剂污水属于生物难降解的高盐、高COD和高碱度废水,因此处理工艺应有所选择。研制新型设备和药剂,开发新工艺,应用新技术成为表活剂污水处理的关键所在。 The purpose of the oilfield wastewater treatment is to remove the oil and suspended solids in the water and reduce the content of COD and LAS in the water, so that the treated sewage reaches the national-level emission standard. The techniques used include gravity separation, coarse graining, flotation, filtration, membrane separation and biological methods such as dozens of ways. Surfactant effluent is biodegradable biological salt, high COD and high alkalinity wastewater, so the treatment process should have the choice. Development of new equipment and pharmaceuticals, the development of new processes, the application of new technologies to become the key to living agent sewage treatment.