Radial pipe reactor

An arrangement for the addition of chlorine dioxide to a water-carrying pipeline having a longitudinal axis, comprising:

• a cylindrical shaft extending at least sectionally into the pipeline, directed radially to the pipe-line and having a reaction chamber at a distal end oriented such that the reaction chamber is within the pipeline;
• wherein
• within the cylindrical shaft are two separate reactant lines which run longitudinally through the shaft from outside the water pipeline into the reaction chamber,
• the reaction chamber comprises an exit hole having an axis, which in a service state is oriented in the direction of the longitudinal axis of the pipeline and in a flow direction of the water,
• and further wherein chlorine dioxide obtained by reaction of reactants in the reaction chamber passes through the exit hole into water in the pipeline.