Reply to "Re-refining of used industrial oils"

oilcanMember

quote:
Originally posted by Charmaine - EO:
Please help. This seems to be the right place to find some knowledgeable people. I am the environmental officer at an Engineering company in South Africa. We use a soluble cutting oil for use in our lathes and milling machines. BY the time we need to dispose of this solution it could be anywhere betwen 5 - 25 % oil to water. How can I best seperate the oil from the water in order to send the oil to the recyclers.

I have an effluent treatment plant for an electroplating plant where i can put the water through, but if there is any oil still in solution, it tends to coat over and mess up my pH probes.

Thanks

Charmaine Gradwell
Environmental Officer
Ramsay Engineering
PMB
South Africa

Breaking the emulsion with 10-15lbs of rock salt is the easiest method. The rock salt acts like a floculant to seperate the two. After letting it settle for 3 - 5 days, all the oil will be on the top for removel. the rest will be brine. Hope this helps.

8/7/082:42 PM

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