A filtration apparatus includes: a cylindrical filter element formed in a cylindrical shape to filter a target fluid guided through an one end opening of the filter element in such a manner that the target fluid passes in a direction from an inside toward an outside of the filter element; a backwashing mechanism drawing the filtered fluid in a direction from the outside toward the inside of the filter element; a high-pressure washing mechanism injecting a high-pressure fluid so as to pass through the filter element in the direction from the inside toward the outside of the filter element; and a rotary drive mechanism rotating the backwashing mechanism and the high-pressure washing mechanism around an axial line of the filter element in an internal space of the filter element.

Apparatus for filter cleaning including a filter element surface (12) to be cleaned, and a cleaning head (10), characterized by a controller (16) operative to move the cleaning head (10) with respect to the filter element surface (12) in a spiral scanning trajectory in such a way that a relative path of the cleaning head (10) with respect to the filter element surface (12) results in a trajectory that fully, or partially covers the filter element surface (12) and is produced by moving the filter element surface (12) in any combination of the following motions: a) one or more circular or semi-circular motions, b) one or more linear motions; while moving the cleaning head (10) in any combination of the following motions: c) one or more circular or semi-circular motions, d) one or more linear motions.

A filtration apparatus includes: a cylindrical filter element formed in a cylindrical shape to filter a target fluid guided through an one end opening of the filter element in such a manner that the target fluid passes in a direction from an inside toward an outside of the filter element; a backwashing mechanism drawing the filtered fluid in a direction from the outside toward the inside of the filter element; a high-pressure washing mechanism injecting a high-pressure fluid so as to pass through the filter element in the direction from the inside toward the outside of the filter element; and a rotary drive mechanism rotating the backwashing mechanism and the high-pressure washing mechanism around an axial line of the filter element in an internal space of the filter element.