Abstract

A method of filtering a main fluid using a rotary fluid filter. A 360 degree filtration cycle is initiated by receiving, at an initial position, a first portion of a main fluid at a front end of a first fluid flow passage extending through a filter body rotationally mounted within a housing. The filter body is rotated in a rotation direction and the first portion of the main fluid is discharged from a rear end of the first fluid flow passage, having passed through a filter received in the first fluid flow passage. The filter body is rotated further in the rotation direction and a first portion of a backwash fluid is received through the first fluid flow passage from the rear end to the front end. The rotational cycle is completed by rotating the filter body back to the initial position.

IPC Classes  ?

• B01D 24/32 - Rotation
• B01D 24/00 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
• B01D 24/46 - Regenerating the filtering material in the filter
• B01D 35/30 - Filter housing constructions
• B01D 39/06 - Inorganic material, e.g. asbestos fibres, glass beads or fibres
• C02F 1/00 - Treatment of water, waste water, or sewage
• C02F 103/10 - Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities