How to remove oil from water used in enameling process
asked 18 July 2016 asked by Shinesh@67 ( points)
You have to look at what the concentration of the oil is and whether or not it is emulsified. If it is not emulsified, gravity separation is a possibility followed by oleophilic filtration before embarking on reverse osmosis. If it is emulsified, then you will need a more advanced treatment. You raise an interesting issue, but it needs further study to determine what the most appropriate technology might be. BTW: Watch out for abrasion or clogging of the membranes if there are any enamel particles in the rinse water.
Hello, First you need to pretreat using dissolved air flotation via physicochemical coagulation and flocculation upstream. This should enable you to recover the particles as well as the oil—even if it is emulsified.