Cleaning apparatus for gas scrubber fluid

A method for using a disc stack centrifugal separator comprising:

• providing a cleaning apparatus including means for bleeding off part of the polluted scrubber fluid from the scrubber fluid loop, a disc stack centrifugal separator for separating at least a pollutant phase and a cleaned scrubber fluid from said part of the polluted scrubber fluid, which separator comprises a rotor enclosing a separation space with a stack of separating discs, a separator inlet for said part of the polluted scrubber fluid extending into said separating space, a first separator outlet for cleaned scrubber fluid extending from said separating space, and a second separator outlet for the pollutant phase extending from said separating space, which cleaning apparatus further comprises means for conducting said part of the polluted scrubber fluid to the separator inlet, and means for discharging the cleaned scrubber fluid from the first separator outlet, and means for collecting the pollutant phase from the second separator outlet;
• separating at least the pollutant phase and the cleaned scrubber fluid from the polluted scrubber fluid being bled off from an exhaust gas scrubber fluid loop.