How to treat oil-containing water in atmospheric and vacuum electro-dehydration
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Dear sea friends: Is there any technology for treating water removed by electrodesionization under normal pressure? The water obtained through this process contains a lot of oil; is it possible to filter out this oil, for example, using a technique that allows water to pass through while keeping the oil behind, thereby containing the oil within the electrodesionization unit during the water separation process.
Generally, water obtained from removal is used for degreasing purposes; Changjiang Samsung has a solution for this
Oil removal equipment is also a type of auxiliary equipment; most of the oil still needs to be removed in the electrodialysis tank. Oil-in-water emulsions are mainly removed using reverse demulsifiers
We divert water to the coking tank where an oil skimmer is installed, and then use it as quench oil for coking
Generally, the oil obtained through emulsification requires sedimentation and subsequent treatment; this usually occurs when the crude oil has a high water content and high current levels. As long as the operation is carried out carefully, oil separation will not occur
If there is a large amount of oil, it is best to send it to an oil separator first, recover some of the oil, and then send it to the wastewater treatment plant.
During the electric desalination water separation process, the viscosity of the crude oil prevents the level gauge in the electric desalination tank from functioning properly, which results in oil being present in the separated water. Under normal conditions, the amount of oil in such water is around 100 parts per million, and it can be sent directly to the wastewater treatment plant. However, when there are fluctuations in the water separation process, a higher percentage of oil may end up in the water. We have conducted pilot tests on electric desalination water separation at Xi’an Petrochemical, Changqing Petrochemical, Jingmen Petrochemical, and Dagang Petrochemical. If you need it, I can share some of my experience in this area for your reference; it might be useful to you. Please leave me your email address or phone number (18691895023/15091621214) if that’s convenient
Solve the problem at its source by adding demulsifiers to reduce the oil content in the cut water.