Various mobile or onsite generation and application systems for sodium chlorite are available. These usually generate the gas from a combination of sodium hypochlorite, sodium chlorite, and hydrochloric acid.
The “vapor-phase” gaseous chlorine/liquid chlorite generation system is patented by Rio Linda (Rybarik, Byron, and Germer 1995).
The Drew CLO2 generator reacts a sodium chlorite solution with sodium hypochlorite and hydrochloric acid (Tsou et al. 1995).
Once generated, the gaseous chloride dioxide is mixed with water and pumped to location of use.