| abstract |
(57) Abstract: An apparatus and a method for cleaning a filter on the spot are provided. A filter that can be cleaned in place includes a filter membrane (33) and a fluid permeable electrode (34, 3). 5). The membrane may be one of the electrodes, or may be non-electrically conductive but integral with one of the electrodes (34), or in contact with one of the electrodes (34). good. The electrodes (34, 35) are separated from each other only by a fluid permeable insulating sheet. This sheet is 1mm thick It may be smaller and may be a filter membrane (33). The filter is cleaned by applying a short current to the electrodes (34, 35) periodically, such that the gas is generated by electrolysis, and the close spacing of the electrodes (34, 35) reduces the required power. |