Abstract: The present disclosure provides a method for flushing particle bearing filter beds located in a circuit or linear water treatment plant for sterilization and decontamination of the filter beds. The filter can be charged with a chlorine-oxide-containing, chlorine-dioxide-containing, halogen-containing, and/or peroxide-containing aqueous solution. A solution acts on the deposits of the particle-type filter bed such that the bed can be subsequently flushed with water and/or an aqueous medium for removal of the process caused reaction product and any residual chlorine oxides or halogens or peroxides.