A Vertical Cylindrical settler-Separator is to be designed for separating a mixture flowing at 20.0 m3/h and containing equal volumes of a light petroleum liquid and a dilute solution of wash water laboratory experiments indicate a settling time of 15 min is needed to adequately separate the two phases. For design purposes use a 25-min settling time and calculate the size of the vessel needed, the liquid levels of the light and heavy liquids in the vessel, and the height hA2 of the heavy liquid overflow. Assume that the ends of the vessel are approximately flat, that the vessel diameter equals its height, and that one-third of the volume is vapor space vented to the atmoshere