FILTER ARRANGEMENT

摘要

The present invention relates to an arrangement to be used in a liquid treatment unit, which unit comprises a generally tubular housing having a liquid inlet in one end of said housing and a liquid outlet in the opposite end of said housing, a generally tubular filter element arranged generally concentric inside said housing, through which the liquid is to be fed from outside the filter to inside the filter, an elongated UV-generating means arranged inside said filter element, the longitudinal direction of which generally corresponds to the longitudinal direction of the filter element, which UV-generating means is capable of generating UV light, material displaying catalytic properties arranged on at least the inner surfaces of said filter element, which material is radiated by said UV-light. The invention is characterised in that said elongated UV-generating means extends a further distance than said generally tubular filter element, which extension is positioned adjacent said outlet, wherein said further distance ensures the flow of liquid, that has passed through said filter element, to flow a certain minimum distance along said elongated UV-generating means, thereby exposing said flow of liquid to UV-light.