Abstract: An apparatus for the clarification of liquids, such as notably water, fruit juices, musts such as grape musts, including an enclosure in which is brought the liquid to be clarified after a pretreatment operation, such as screening, as well as a flotation equipment, fed by a transfer pump with liquid pressurized and relieved of the pressure prior to its introducting in the flotation equipment, from which the clarified liquid is introduced in a filtration system. The apparatus includes the features that the flotation equipment is placed above the assembly used for the pretreatment of the liquid so as to obtain a sufficient load for bringing about a hydraulic balance of the various constituents of the apparatus, in order that it can operate with a small load available upstream and allow a possible recycling, by simple gravity, of the floating particles collected at the surface of the flotation equipment to any point of the pretreatment.

Abstract: A device for removing free fatty acids from cooking oil is formed by a pair of superposed reservoirs having a screen and filter pad provided partition dividing the reservoirs from each other through which the cooking is forced from the upper reservoir to the lower reservoir by air pressure. A powder commingled with the oil prior to the filtering step is trapped with free fatty acids on the filter pad.

Abstract: A process for eliminating the static charge from expandable polystyrene beads during a molding cycle. Pre-expanded polystyrene beads are injected into a mold cavity by using an air stream created by a venturi-type fill gun. To prevent the beads from carrying static while being injected into the mold, the air is ionized by exposure to high energy nuclear particles prior to contact with the polystyrene beads.