Technology Overview
The CPI is the tilted plate oil remover, and the ADAF is the Andmir Dissolved Air Flotation, these two can be combined to form the oily wastewater pretreatment process. The technology is mature and reliable and has been successfully applied in the wastewater treatment process of the petroleum and petrochemical industry. 
Technology advantages
Advanced oily wastewater pretreatment technology, combined technology of CPI+ADAF, is in the leading place of the domestic oily wastewater pretreatment field, which has the advantages of subsection complement with strong points and high removing efficiency;

◆ the oil removing rate of CPI is larger than 80% and the oil removing rate of ADAF is larger than 90%;

◆A high level of automation which can realize unattended operation;

◆ can realize the indoor open-air arrangement and the gravity flow can meet the requirements of water force;

◆ the advantages of investment, occupation of land and energy saving are obvious. 
Technical principle
According to the status of the oily wastewater, it can be divided into the floating oil (oil particle size is larger than 60μm), the dispersed oil (oil particle size is between 10-60μm), the emulsified oil (oil particle size is less than 10μm) and the soluble oil. The CPI（Corrugated Plate Interceptor）has added the tilted plate on the basis of horizontal sedimentation tank, with the increased separation area, it can remove the large amount of floating oil and some dispersed oil. The ADAF is Andmir Dissolved Air Flotation, which has improved the dissolved air pressure on the basis of the traditional air flotation and has added the automatic measures like the tilted plate, and improved oil and mud removing, etc, it has the advantages of small land occupation, high separation efficiency and good effects of removing the dispersed oil and emulsified oil.

Field of application
 

◆Land oilfield sewage treatment

◆Sewage treatment in offshore oilfield

◆Refinery wastewater treatment