Abstract: Fluid separator apparatus comprising at least one cyclone (16A) for separating a fraction of less dense component(s) from predominantly fluid mixtures having at least one predominantly liquid component, said cyclone/s being provided with means defining at least one feed inlet (64), means defining at least one overflow outlet (72) for discharge of overflow comprising predominantly less dense component(s) of fluid mixtures, means defining at least one underflow outlet (66) for discharge of underflow comprising predominantly denser component(s) of said fluid mixtures, overflow conduit means (74) to receive and conduct said overflow away from said cyclone, said overflow conduit means (74) being connected securably to said overflow outlet means (72) of said cyclone (16A), support means (54) for supporting said cyclone/s in the form of a plate of pre-selected dimensions adapted to securably but releasably receive the body/bodies of said cyclone/s (16A) and receiving and transport means (78) to receive and transport

Abstract: A hydrocyclone is disclosed for separating, at least partially, fluid mixtures having a predominant liquid component. The hydrocyclone has a first end and a second end remote from the first end. The cross-sectional area of the hydrocyclone in at least one location towards the second end is less than the cross-sectional area at the first end. The hydrocyclone further includes at least one inlet in the region of the first end for introducing the feed mixture and at least two outlets with at least one outlet in the region of the second end. The hydrocyclone has in the region of the second end a fixed or moveable flow-modifying element located at or near the hydrocyclone axis and the element is constructed to affect the flow towards the second end of fluid containing a relatively large portion of less dense component but to allow flow past the element towards the second end of the fluid containing a relatively large portion of a more dense component.