A system for processing a fluid, comprising: an elongated vessel defining an inner chamber, the vessel and inner chamber being oriented generally horizontally; a fluid inlet formed in the vessel; a plurality of trays disposed within the inner chamber in spaced relation to one another, each of the plurality of trays including scoops through the trays through which fluids pass, wherein the scoops include an inlet of a first diameter oriented substantially perpendicular to a surface of the tray and an outlet of a second smaller diameter; a flow director extending from a front face of at least one of the trays and configured to direct flow of the fluid towards a periphery of the tray; a plurality of baffles oriented vertically, disposed along the horizontal orientation of the inner chamber, and fixedly attached to the vessel, each of the plurality of baffles alternately spaced with each of the plurality of trays, each of the plurality of baffles having apertures through the baffles through which fluids pass, wherein the apertures have an inlet of a first diameter and an outlet of a second smaller diameter; a rotatable shaft disposed along the horizontal orientation of the inner chamber, the shaft passing through the baffles and attached to the trays so as to rotate the trays within the inner chamber; means (30, 32, 34, 130, 132) for rotating the shaft; a controller for adjusting a speed of rotation of the shaft or fluid input through the fluid inlet to the vessel; at least one sensor (96, 114, 118) in communication with the controller and configured to determine at least one of: 1) speed of rotation of the shaft or trays, 2) pressure of the inner chamber, 3) temperature of the fluid, 4) fluid input rate, or 5) level of contaminants in the fluid to be processed; a contaminant outlet formed in the vessel; an internal sleeve disposed in the inner chamber downstream of the trays and baffles, the internal sleeve forming an annular passageway leading from the inner chamber to the contaminant outlet; and a vapor outlet formed in the vessel and in communication with a vapor recovery tank for condensing vapor. an elongated vessel defining an inner chamber, the vessel and inner chamber being oriented generally horizontally; a fluid inlet formed in the vessel; a plurality of trays disposed within the inner chamber in spaced relation to one another, each of the plurality of trays including scoops through the trays through which fluids pass, wherein the scoops include an inlet of a first diameter oriented substantially perpendicular to a surface of the tray and an outlet of a second smaller diameter; a flow director extending from a front face of at least one of the trays and configured to direct flow of the fluid towards a periphery of the tray; a plurality of baffles oriented vertically, disposed along the horizontal orientation of the inner chamber, and fixedly attached to the vessel, each of the plurality of baffles alternately spaced with each of the plurality of trays, each of the plurality of baffles having apertures through the baffles through which fluids pass, wherein the apertures have an inlet of a first diameter and an outlet of a second smaller diameter; a rotatable shaft disposed along the horizontal orientation of the inner chamber, the shaft passing through the baffles and attached to the trays so as to rotate the trays within the inner chamber; means (30, 32, 34, 130, 132) for rotating the shaft; a controller for adjusting a speed of rotation of the shaft or fluid input through the fluid inlet to the vessel; at least one sensor (96, 114, 118) in communication with the controller and configured to determine at least one of: 1) speed of rotation of the shaft or trays, 2) pressure of the inner chamber, 3) temperature of the fluid, 4) fluid input rate, or 5) level of contaminants in the fluid to be processed; a contaminant outlet formed in the vessel; an internal sleeve disposed in the inner chamber downstream of the trays and baffles, the internal sleeve forming an annular passageway leading from the inner chamber to the contaminant outlet; and a vapor outlet formed in the vessel and in communication with a vapor recovery tank for condensing vapor.