A separation arrangement for an electrostatic precipitator comprising: a separation chamber having a gas flow inlet for receiving a particulate-laden gas stream and a gas flow outlet for exhausting the particulate-laden gas stream; a first set of plate shaped electrodes; and a second set of plate shaped electrodes; wherein each electrode (210, 220) has a first major surface (214a, 224a) and an opposing second major surface (214b, 224b), wherein the electrodes (210, 220) of the first set and the second set are coaxially alternately arranged inside the chamber about a first axis, the first axis extending in normal direction to a major flow direction of the particulate-laden gas stream; wherein the first set of electrodes is attached to walls of the chamber; wherein the second set of electrodes is rotatably arranged about the first axis and configured to be coupled to a voltage source for providing a potential difference in relation to the first set of electrodes and the walls of the chamber when the separation arrangement is in an operating mode, wherein at least one electrode of the first set and at least one electrode of the second set are provided with a respective cut-out (211, 221) which extends from an axis portion towards a peripheral portion of the associated electrode; wherein the at least one electrode of the first set and the at least one electrode of the second set are provided with a respective scraper (212, 222) on an associated first major surface (214a, 224a) and second major surface (214b, 224b) respectively, the respective scraper (212, 222) extending along the associated first major surface (214a, 224a) and second major surface (214b, 224b) from the axis portion to the peripheral portion of the associated electrode (210, 220) and protrudes in a axial direction from the associated first or second major surface (214a, 224a, 214b, 224b) towards an opposing first or second major surface (214a, 224a, 214b, 224b) of an adjacent electrode (210, 220); wherein, when the separation arrangement is in the operation mode, the at least one electrode of the first set and the at least one electrode of the second set are configured to be arranged in relation to each other, such that the respective cut-out (211, 221) of the adjacent electrode (210, 220) coincides with the respective scraper (212, 222) of the associated electrode (210, 220); and wherein, when the separation arrangement is in a cleaning mode in which the second set of electrodes are configured to be rotated about the first axis, the respective scraper (212, 222) scrapes the opposing first or second major surface (214a, 224a, 214b, 224b) of the adjacent electrode (210, 220) thereby removing particles collected thereon. a separation chamber having a gas flow inlet for receiving a particulate-laden gas stream and a gas flow outlet for exhausting the particulate-laden gas stream; a first set of plate shaped electrodes; and a second set of plate shaped electrodes; wherein each electrode (210, 220) has a first major surface (214a, 224a) and an opposing second major surface (214b, 224b), wherein the electrodes (210, 220) of the first set and the second set are coaxially alternately arranged inside the chamber about a first axis, the first axis extending in normal direction to a major flow direction of the particulate-laden gas stream; wherein the first set of electrodes is attached to walls of the chamber; wherein the second set of electrodes is rotatably arranged about the first axis and configured to be coupled to a voltage source for providing a potential difference in relation to the first set of electrodes and the walls of the chamber when the separation arrangement is in an operating mode, wherein at least one electrode of the first set and at least one electrode of the second set are provided with a respective cut-out (211, 221) which extends from an axis portion towards a peripheral portion of the associated electrode; wherein the at least one electrode of the first set and the at least one electrode of the second set are provided with a respective scraper (212, 222) on an associated first major surface (214a, 224a) and second major surface (214b, 224b) respectively, the respective scraper (212, 222) extending along the associated first major surface (214a, 224a) and second major surface (214b, 224b) from the axis portion to the peripheral portion of the associated electrode (210, 220) and protrudes in a axial direction from the associated first or second major surface (214a, 224a, 214b, 224b) towards an opposing first or second major surface (214a, 224a, 214b, 224b) of an adjacent electrode (210, 220); wherein, when the separation arrangement is in the operation mode, the at least one electrode of the first set and the at least one electrode of the second set are configured to be arranged in relation to each other, such that the respective cut-out (211, 221) of the adjacent electrode (210, 220) coincides with the respective scraper (212, 222) of the associated electrode (210, 220); and wherein, when the separation arrangement is in a cleaning mode in which the second set of electrodes are configured to be rotated about the first axis, the respective scraper (212, 222) scrapes the opposing first or second major surface (214a, 224a, 214b, 224b) of the adjacent electrode (210, 220) thereby removing particles collected thereon.