Question by naveedpervaiz: How to recycle the waste water of oil refinery, so the oil can be use?
get the water from the oil refinery that water which used to clean crude oil, and that water become waste and that water purchase from refinery and spart the oil from the water and that oil can be for sale.
Best answer:
Answer by water_skipper
If you have a settling pond a lot of the oil will float to the surface, but I don’t know if the oil would be usable. You might have to distill it.
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It´s possible, first step is settle the water. Then water pass to biological treatment to low DQO. You could sell the oil to refinery and they cracking the mix again to break the chains into other materials.