The organic pollution components in shale gas production fluid are complex, especially those containing oilfield chemicals such as corrosion inhibitors and surfactants, which pose significant difficulties for subsequent water treatment processes. At the same time, shale gas production fluid has a high chloride ion content, which has high requirements for equipment materials and design. At the same time, considering the on-site requirements for equipment safety and automated continuous operation, it is necessary to focus on the water quality characteristics of shale gas production water, Conduct specialized design and customized processing of on-site equipment, and all the liquid receiving parts are made of stainless steel.

This device includes three stages: coagulation and adsorption, concentration and evaporation, and advanced oxidation. The equipment is located in the field and must be movable to facilitate migration from one station to another. Therefore, the entire set of process equipment and control related to the device is made on a skid, including three skids, namely the ozone preparation skid, coagulation and adsorption integrated skid, and advanced ozone oxidation skid. Electrical and control related equipment shall be configured according to explosion-proof level.

Since the full set of devices was put into use, the processing capacity has been stable, the drainage indicators have met the standards, and the control system is stable and reliable, which has won high praise from users.