Abstract: An element for filtering and separating fluid mixtures, especially admixed or emulsified fluids and, in particular, mixtures and/or emulsions of oils, fuels and the like and water, in which the fluid to be are removed from the fluid by filtration, and the oil therein is coalesced and separated from the water.

Abstract: A system is provided for monitoring fluid discharged from ships and for determining the amount of contaminants, such as oil, in the fluid. The discharge from the ship is continuously monitored by a meter which will indicate the oil content of the discharge in, for example, parts per million. The indicated value may be charted for record purposes. The total volume of discharge from the ship and the speed of the ship may also be measured. The three values obtained by the foregoing measurements are processed in computing mechanism and a value is obtained for the amount of contaminants being discharged for each unit distance travelled by the ship. When the aforementioned value reaches a predetermined amount, the discharge from the ship is interrupted, or reduced, so that at no time do the amount of contaminants discharged from the ship exceed a predetermined allowable limit with respect to the speed of travel of the ship.

Abstract: A method and apparatus for treating fluids on a marine vessel, especially bilge and ballast water, in which the fluid to be treated is passed through filtering and coalescing devices to bring about separation of the oil from the water, whereupon the oil is delivered to an oil tank and the water is discharged overboard. The purity of the discharged water is continuously monitored by a turbidity meter and the flow of the fluid through the system is controlled thereby so that the discharged water will meet all pollution standards.