Efficient bactericide for polymer-containing sewage of oil field and preparation method

The invention belongs to the technical field of sewage treatment, and relates to a novel oilfield polymer-containing sewage bactericide, in particular to a gemini phosphate betaine type efficient bactericide for oilfield polymer-containing sewage and a preparation method thereof. The novel gemini phosphate betaine type bactericide is a zwitter-ionic surfactant, does not polymerize residual polymers in polymer-containing sewage, and solves the problem of increasing of suspended solid content caused by cationic bactericides used in oil fields. The novel gemini phosphate betaine type bactericideis a gemini surfactant, has better water solubility and bactericidal effect than traditional phosphate betaine type bactericides, and can kill SRB in sewage slime. 本发明属于污水处理技术领域，涉及一种新型油田含聚污水杀菌剂，具体涉及一种双子型磷酸酯甜菜碱型油田含聚污水用高效杀菌剂及制备方法。本发明的双子型磷酸酯甜菜碱型新型杀菌剂为两性离子型表面活性剂，对含聚污水中的残余聚合物不发生聚合，解决了油田在用阳离子型杀菌剂造成的悬浮固体含量增加的问题。本发明的双子型磷酸酯甜菜碱型新型杀菌剂为双子型表面活性剂，水溶性和杀菌效果优于之前的传统的磷酸酯甜菜碱型杀菌剂，可以杀灭污水粘泥中的SRB。