Devices for in-situ generation of biocides - Chlorine dioxide generated from sodium chlorite by acidification or oxidation

This document specifies requirements for dosing systems for chlorine dioxide generation according to the chlorite-chlorine gas process, the chlorite-acid process and the chlorite-sodium peroxodisulphate process, which are used for the disinfection and oxidation of substances in water. The chlorine dioxide (ClO2) solution is produced on site (in situ) by automated mixing of chemical precursors. NOTE According to EN 12671, chlorine dioxide is suited for the use of the treatment of water intended for human consumption (drinking water).