While designs may vary, oil skimmers all rely on specific gravity and surface tension. Most oil skimmers use a moving medium to remove the floating oil from the fluid's surfaces (a floating suction skimmer is an exception). Floating oil, grease, and other oils stick to the media better than water. You can browse here to get the best and right oil recovery services for your industry.
This allows media to be shaped like a belt, disc, drum, or other similar shapes. The media can pass through the fluid surface to pick up any floating oil or grease while rejecting most water. With pinch rollers or wiper blades, the oily material can be removed from the media.
You should also consider the type of water contaminant that is being removed as it will affect the type of skimmer that you choose. Grease skimming, for example, involves the use of higher viscosity hydrocarbons.
An oil skimmer should be heated to maintain the grease fluid. To keep the grease liquid, heating elements may be required in the fluid reservoir or skimmer unit. A spray bar, an aerator, or any other mechanical device can be used to break down the grease and aid in skimming if it forms into solid clumps.
Recognize the power of a skimmer. Sometimes oil skimming can be enough to achieve the desired level of water purity.
These are some of the most suitable applications for oil skimmers:
* Wastewater sumps, where floating hydrocarbons are removed to reduce disposal costs and minimize the potential liabilities for wastewater discharge.
* Coolants and cutting oils where skimming tramp oil extends coolant lifespan, improves the quality of the machined part, reduces the risk of dermatitis, and helps prevent the fluid's "rotten egg smell" from developing.
* Heat treatment operations that require trench oil removal from heat-treated parts can be captured using a skimmer to reuse or dispose of them.