Rambo, at the hammer shop I worked at the exhaust steam with the oil and water went to a Silencer exhaust. The steam went up a pipe and the silencer was at the exit end. It was a a bowl shaped device that caused the staem to expand to atmospheric pressure in the bowl, which helped cut down the noise. The oil and water droplets fell out as the velocity dropped as the steam expanded and there was a drain to capture. Most of the water would however flash to steam as the pressure dropped leaving much less water.
Skimmers will pull MOST of the oil out but NOT all. If you have a permits sewer and can not send out oil, the skimmer won't do the job. There is a new product out that polymerizes the oil into a solid and leaves sheen free water. Most storm permits and sewers call out no sheen for discharge. Some sewer permits will allow as much as 100 Mg/Liter.
Not knowing your location I can not give exact requirements. I do Environmental for my company and have been in this trade for a while. The polymer product is called C.I. Agent. (Cheap Insurance). They are on the web and I know that the main office is in Louisville KY. USA
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