| 摘要 |
Method for purification of a liquid, which method comprises the steps of; conducting the liquid through a purifying chamber ( 19 ), activating a UV light source ( 22 ) comprising a gas for lighting and illuminating the liquid in the chamber by the UV-light source. In order to increase the efficiency and shortening the start-up time of the UV light source, the gas is heated to an increased temperature prior to activating the UV light source for lighting, using a heating element which is placed outside the WV light source. |
