Are you able to remove water-soluble oils such as coolants from the wash solution?
Not easily in the system where we are relying on a separation or natural decanting gravity separation if you will in a coalescer. You can remove emulsified oils sometimes by membrane separation in a microfiltration or ultrafiltration but we need to do the testing and partner up with a company who produces these filtration devices. The downside is sometimes they remove the cleaning chemistry and you’re trying to return that clean oil-free phase back to the wash stage. So you can do it, but it takes some testing.