> since 5% of the contaminants are still there I think you are referring to the statement > The Purdue researchers were able to recover up to 95 percent of th

> since 5% of the contaminants are still there I think you are referring to the statement > The Purdue researchers were able to recover up to 95 percent of the oil that was absorbed. This is not referring to the amount of contaminants removed from the water. Its referring to recovering the oil from the activated carbon filter.