Gea Westfalia Separator Group Gmbh

Aalborg Industries Water Treatment Pte. Ltd.

Wilfried Riggers

Uwe Mueller

Uwe Müller

A filter module according to the present invention comprises a housing having an inlet and an outlet, said housing enclosing a tubular, elongate filter element defining a longitudinal axis and a cleaning head connected by means of a conduit to a coaxially arranged and rotatably mounted pipe, said cleaning head being resiliently biased towards the internal surface of said tubular, elongate filter element. Moreover, said cleaning head has an opening of adjustable size facing said internal surface of said filter element and providing fluid communication between the interior of said housing and the interior of said pipe. The filter module further comprises means for creating a pressure difference between the interior of said housing and the interior of said pipe so as to cause a fluid flow from the interior of said housing to the interior of said pipe as well as means for effecting a rotation of said pipe. Said filter module further comprises a spacer element rotatably supported on and releasably attached to said cleaning head, said spacer element defining the minimum spacing between the cleaning head and the internal surface of said filter element.

Self-cleaning filter module

The present invention relates to an apparatus for the treatment of liquids, comprising a filter module with a filter, an inlet for liquid, a first outlet for liquid and a second outlet for filtered liquid, wherein the inlet and the first outlet are positioned on a first side of the filter, and the second outlet is positioned on the second side of the filter, a first UV-treatment module with a first UV-light source, wherein the first UV-treatment module is connected with the first outlet of the filter module and adapted to receive liquid from the filter module, and to expose said liquid to UV-light from the first UV-light source, and a second UV-treatment module with a second UV-light source, wherein the second UV-treatment module is connected with the second outlet of the filter module adapted to receive filtered liquid from the filter module, and to expose said liquid to UV-light from the second UV-light source.

Apparatus for the treatment of liquids

The invention relates to an apparatus for purifying liquids, in particular for purifying ballast water.

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Bremervörde, Germany

Wilfried Riggers