Yihua has completed the shipment of a CPI Corrugated Plate Oil Separator to Paraguay for an industrial wastewater treatment project. The equipment will support the separation of free oil and settleable solids before downstream treatment, helping the wastewater plant maintain a more stable and manageable pretreatment process.
Industrial wastewater containing free oil can create serious operational problems when it enters chemical or biological treatment without effective separation. Oil may coat equipment surfaces, interfere with oxygen transfer, increase chemical consumption, and place additional pressure on downstream units. Installing a CPI Corrugated Plate Oil Separator at the front of the treatment train provides a practical method for reducing this load.
How the CPI Separator Supports the Project
The CPI Corrugated Plate Oil Separator uses a series of closely arranged corrugated plates to shorten the distance that oil droplets must travel before separation. As wastewater moves through the plate pack under controlled hydraulic conditions, oil droplets contact the plate surfaces, combine into larger droplets, and rise toward the oil collection zone.
At the same time, solids that are denser than water can settle toward the lower sludge collection area. This allows the CPI unit to perform oil separation and preliminary solids removal within a compact footprint.
The process is based mainly on gravity and coalescence. It does not depend on high speed rotating separation equipment, which helps simplify routine operation and maintenance. Correct flow distribution remains essential because excessive turbulence can break oil droplets into smaller sizes and reduce separation performance.
Designed for Industrial Wastewater Pretreatment
A CPI Corrugated Plate Oil Separator is suitable for wastewater containing free oil that can separate under gravity. Potential applications include petroleum handling, machinery cleaning, metal processing, vehicle maintenance, power generation, and other industrial operations where oil enters drainage or process water.
The CPI unit should not be treated as a complete solution for every form of oil contamination. Stable emulsified oil and dissolved hydrocarbons will not separate efficiently through gravity alone. When these pollutants are present, chemical conditioning and a DAF System may be required after the CPI stage. A Lamella Clarifier can also be integrated where the wastewater contains a significant load of dense suspended solids.
Preparation Before International Delivery
Before shipment, industrial wastewater equipment should be checked for structural integrity, plate pack installation, piping interfaces, sludge discharge access, and oil collection arrangements. Components also need secure protection against movement and impact during international transportation.
Clear installation guidance is particularly important for overseas projects. The receiving team should verify equipment level, inlet and outlet connections, accessible cleaning space, and the operating sequence before commissioning. Representative wastewater testing is then required to establish the correct flow rate and oil removal conditions.
Conclusion
The shipment of this CPI Corrugated Plate Oil Separator to Paraguay supports a compact and low complexity approach to industrial wastewater pretreatment. By removing free oil before downstream treatment, the system can reduce process interference and improve overall plant stability. Final performance will depend on wastewater characteristics, hydraulic control, routine oil removal, sludge discharge, and correct integration with subsequent treatment stages.
For more information, please contact: winnie@yihuaep.com
