针对目前压裂废液成分复杂,达标外排处理难度大,现有废液站内的简单沉降工艺处理后水质不达标,影响联合站污水处理系统的问题,根据压裂作业废液的特点,建立了破胶—絮凝—过滤工艺,并优化了参数,实现将压裂作业废液处理后含油低于50mg/L,悬浮物低于50mg/L,粘度低于5m Pa.s,达到联合站进水要求,为联合站的正常运行提供保障。 Aiming at the problems of complex fracturing effluent compositions, difficult effluent discharge standards, poor water quality after simple sedimentation process in existing effluent stations, and the problems of sewage treatment system in the united station, the characteristics of fracturing wastewater are established The gel-flocculation-filtration process is optimized, and the parameters are optimized to achieve a combined station with the oil content below 50mg / L, the suspended matter below 50mg / L and the viscosity below 5mPa.s after the fracturing operation waste liquid is treated Water requirements for the normal operation of the Joint Station to provide protection.